Not able to log in on iOS

Description:

Our users cannot log in to our Rocketchat instance from iOS. Their credentials work from Windows browser and everywhere else. If they enter the wrong credentials, they get a message-toast. For the right credentials, they see a loading screen and then are dropped to the login screen again.

This happens both with the official Rocketchat app and Fairchat app.

Steps to reproduce:

1. Open Rocketchat or Fairchat iOS app
2. Log in to our instance

Expected behavior:

Login works or the user is presented with an error message at least.

Actual behavior:

Loading screen and drop back to login-screen.

Server Setup Information:

• Version of Rocket.Chat Server: rocketchat/rocket.chat:6.2.9
• Operating System: CentOS Linux 7 (Core)
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog:
• NodeJS Version: embedded into docker image
• MongoDB Version: 5.0

Client Setup Information

• Desktop App or Browser Version: Fairchat app → 2.14.0.247 Rocketchat app → 4.39.0
• Operating System: iOS 16.5.1

Additional context

We use LDAP auth from Active Directory.

Relevant logs:

iOS server log (not working):

{"level":35,"time":"2023-07-12T10:50:54.587Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/info","userAgent":"RC Mobile; ios 16.5.1; v2.14.0 (247)","host":"*serverIP*:3001","remoteIP":"*clientIP*","status":200,"responseTime":2}
{"level":35,"time":"2023-07-12T10:50:54.967Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/settings.oauth","userAgent":"fairchat/247 CFNetwork/1408.0.4 Darwin/22.5.0","host":"*serverIP*:3001","remoteIP":"*clientIP*","status":200,"responseTime":4}
{"level":35,"time":"2023-07-12T10:50:55.050Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/settings.public?query=%7B%22_id%22:%7B%22$in%22:[%22API_Gitlab_URL%22,%22CAS_enabled%22,%22CAS_login_url%22,%22Accounts_EmailVerification%22,%22Accounts_ManuallyApproveNewUsers%22,%22Accounts_ShowFormLogin%22,%22Site_Url%22,%22Accounts_RegistrationForm%22,%22Accounts_RegistrationForm_LinkReplacementText%22,%22Accounts_EmailOrUsernamePlaceholder%22,%22Accounts_PasswordPlaceholder%22,%22Accounts_PasswordReset%22,%22Accounts_iframe_enabled%22,%22Accounts_Iframe_api_url%22,%22Accounts_Iframe_api_method%22]%7D%7D","userAgent":"RC Mobile; ios 16.5.1; v2.14.0 (247)","host":"*serverIP*:3001","remoteIP":"*clientIP*","status":200,"responseTime":8}
{"level":35,"time":"2023-07-12T10:50:55.154Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/settings.public?query=%7B%22_id%22:%7B%22$in%22:[%22Accounts_AllowEmailChange%22,%22Accounts_AllowPasswordChange%22,%22Accounts_AllowRealNameChange%22,%22Accounts_AllowUserAvatarChange%22,%22Accounts_AllowUserProfileChange%22,%22Accounts_AllowUserStatusMessageChange%22,%22Accounts_AllowUsernameChange%22,%22Accounts_AvatarBlockUnauthenticatedAccess%22,%22Accounts_CustomFields%22,%22Accounts_NamePlaceholder%22,%22API_Use_REST_For_DDP_Calls%22,%22CROWD_Enable%22,%22DirectMesssage_maxUsers%22,%22E2E_Enable%22,%22Accounts_Directory_DefaultView%22,%22FEDERATION_Enabled%22,%22Hide_System_Messages%22,%22LDAP_Enable%22,%22Livechat_request_comment_when_closing_conversation%22,%22Jitsi_Enabled%22,%22Jitsi_SSL%22,%22Jitsi_Domain%22,%22Jitsi_Enabled_TokenAuth%22,%22Jitsi_URL_Room_Hash%22,%22Jitsi_URL_Room_Prefix%22,%22Message_AllowDeleting%22,%22Message_AllowDeleting_BlockDeleteInMinutes%22,%22Message_AllowEditing%22,%22Message_AllowEditing_BlockEditInMinutes%22,%22Message_AllowPinning%22,%22Message_AllowStarring%22,%22Message_AudioRecorderEnabled%22,%22Message_GroupingPeriod%22,%22Message_TimeFormat%22,%22Message_TimeAndDateFormat%22,%22Site_Name%22,%22Store_Last_Message%22,%22uniqueID%22,%22UI_Allow_room_names_with_special_chars%22,%22UI_Use_Real_Name%22,%22Assets_favicon_512%22,%22Message_Read_Receipt_Enabled%22,%22Message_Read_Receipt_Store_Users%22,%22Threads_enabled%22,%22FileUpload_MediaTypeWhiteList%22,%22FileUpload_MaxFileSize%22,%22AutoTranslate_Enabled%22,%22Force_Screen_Lock%22,%22Force_Screen_Lock_After%22,%22Allow_Save_Media_to_Gallery%22,%22Accounts_AllowInvisibleStatusOption%22,%22Jitsi_Enable_Teams%22,%22Jitsi_Enable_Channels%22,%22Canned_Responses_Enable%22,%22Livechat_allow_manual_on_hold%22,%22Accounts_AvatarExternalProviderUrl%22,%22VideoConf_Enable_DMs%22,%22VideoConf_Enable_Channels%22,%22VideoConf_Enable_Groups%22,%22VideoConf_Enable_Teams%22,%22Accounts_AllowDeleteOwnAccount%22,%22Number_of_users_autocomplete_suggestions%22,%22Presence_broadcast_disabled%22]%7D%7D&count=63","userAgent":"RC Mobile; ios 16.5.1; v2.14.0 (247)","host":"*serverIP*:3001","remoteIP":"*clientIP*","status":200,"responseTime":13}
{"level":30,"time":"2023-07-12T10:51:05.979Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Init Setup"}
{"level":30,"time":"2023-07-12T10:51:05.980Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Connecting","url":"ldap://*ldapIP*:389"}
{"level":30,"time":"2023-07-12T10:51:05.994Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"LDAP connected"}
{"level":30,"time":"2023-07-12T10:51:05.996Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Searching by username","username":"*username*","baseDN":"ou=****,DC=****,DC=local","searchOptions":{"filter":"(&(&(objectCategory=person)(objectclass=user))(sAMAccountName=*username*))","scope":"sub","sizeLimit":1000,"attributes":["*","+"],"paged":{"pageSize":250,"pagePause":false}}}
{"level":30,"time":"2023-07-12T10:51:05.997Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Bind","msg":"Binding UserDN","userDN":"Cn=****,ou=****,ou=****,ou=****,ou=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:06.019Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 1 entries and loaded the data of 1."}
{"level":30,"time":"2023-07-12T10:51:06.019Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticating","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:06.021Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticated","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:06.025Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 4 entries and loaded the data of 0."}
{"level":30,"time":"2023-07-12T10:51:06.051Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Disconnecting"}
{"level":30,"time":"2023-07-12T10:51:06.062Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Closed"}
{"level":35,"time":"2023-07-12T10:51:06.105Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/login","userAgent":"RC Mobile; ios 16.5.1; v2.14.0 (247)","length":"75","host":"*serverIP*:3001","remoteIP":"*clientIP*","responseTime":136}
{"level":30,"time":"2023-07-12T10:51:08.200Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Init Setup"}
{"level":30,"time":"2023-07-12T10:51:08.201Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Connecting","url":"ldap://*ldapIP*:389"}
{"level":30,"time":"2023-07-12T10:51:08.206Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"LDAP connected"}
{"level":30,"time":"2023-07-12T10:51:08.206Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Searching by username","username":"*username*","baseDN":"ou=****,DC=****,DC=local","searchOptions":{"filter":"(&(&(objectCategory=person)(objectclass=user))(sAMAccountName=*username*))","scope":"sub","sizeLimit":1000,"attributes":["*","+"],"paged":{"pageSize":250,"pagePause":false}}}
{"level":30,"time":"2023-07-12T10:51:08.207Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Bind","msg":"Binding UserDN","userDN":"Cn=****,ou=****,ou=****,ou=****,ou=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:08.215Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 1 entries and loaded the data of 1."}
{"level":30,"time":"2023-07-12T10:51:08.215Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticating","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:08.217Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticated","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T10:51:08.221Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 4 entries and loaded the data of 0."}
{"level":30,"time":"2023-07-12T10:51:08.241Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Disconnecting"}
{"level":30,"time":"2023-07-12T10:51:08.243Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Closed"}
{"level":35,"time":"2023-07-12T10:51:08.275Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/login","userId":"****","userAgent":"RC Mobile; ios 16.5.1; v2.14.0 (247)","length":"75","host":"*serverIP*:3001","remoteIP":"*clientIP*","responseTime":78}
{"level":30,"time":"2023-07-12T10:52:00.068Z","pid":1,"hostname":"5aecbb078c7b","name":"SyncedCron","msg":"Starting \"Generate download files for user data\"."}
{"level":30,"time":"2023-07-12T10:52:00.069Z","pid":1,"hostname":"5aecbb078c7b","name":"SyncedCron","msg":"Finished \"Generate download files for user data\"."}

Windows browser log (working):

{"level":30,"time":"2023-07-12T14:18:01.585Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Init Setup"}
{"level":30,"time":"2023-07-12T14:18:01.586Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Connecting","url":"ldap://*ldapIP*:389"}
{"level":30,"time":"2023-07-12T14:18:01.594Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"LDAP connected"}
{"level":30,"time":"2023-07-12T14:18:01.595Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Searching by username","username":"*username*","baseDN":"ou=****,DC=****,DC=local","searchOptions":{"filter":"(&(&(objectCategory=person)(objectclass=user))(sAMAccountName=*username*))","scope":"sub","sizeLimit":1000,"attributes":["*","+"],"paged":{"pageSize":250,"pagePause":false}}}
{"level":30,"time":"2023-07-12T14:18:01.595Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Bind","msg":"Binding UserDN","userDN":"Cn=****,ou=****,ou=IT,ou=****,ou=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T14:18:01.602Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 1 entries and loaded the data of 1."}
{"level":30,"time":"2023-07-12T14:18:01.603Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticating","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T14:18:01.604Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Auth","msg":"Authenticated","dn":"CN=****,OU=****,OU=****,OU=****,DC=****,DC=local"}
{"level":30,"time":"2023-07-12T14:18:01.608Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"LDAP Search found 4 entries and loaded the data of 0."}
{"level":30,"time":"2023-07-12T14:18:01.620Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Connection","msg":"Disconnecting"}
{"level":30,"time":"2023-07-12T14:18:01.627Z","pid":1,"hostname":"5aecbb078c7b","name":"LDAP","section":"Search","msg":"Closed"}
{"level":35,"time":"2023-07-12T14:18:01.649Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.callAnon/login","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"169","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":67}
{"level":35,"time":"2023-07-12T14:18:01.799Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/apps/languages","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":1}
{"level":35,"time":"2023-07-12T14:18:01.832Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/commands.list","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":14}
{"level":35,"time":"2023-07-12T14:18:01.837Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/roles.list","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":12}
{"level":35,"time":"2023-07-12T14:18:01.844Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/emoji-custom.list","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":31}
{"level":35,"time":"2023-07-12T14:18:01.854Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/banners?platform=web","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":35}
{"level":35,"time":"2023-07-12T14:18:01.857Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/license:getModules","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"95","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":1}
{"level":35,"time":"2023-07-12T14:18:01.890Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"subscriptions/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.893Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"private-settings/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.901Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"rooms/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.907Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"getUserRoles","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.922Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/me","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":8}
{"level":35,"time":"2023-07-12T14:18:01.934Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"listCustomUserStatus","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.936Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"listCustomSounds","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:01.938Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/getUserRoles","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"89","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":32}
{"level":35,"time":"2023-07-12T14:18:01.939Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/private-settings:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"98","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":47}
{"level":35,"time":"2023-07-12T14:18:01.947Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/listCustomUserStatus","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"97","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":15}
{"level":35,"time":"2023-07-12T14:18:02.030Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/permissions:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"93","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":134}
{"level":35,"time":"2023-07-12T14:18:02.036Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/listCustomSounds","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"93","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":101}
{"level":35,"time":"2023-07-12T14:18:02.056Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/subscriptions:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"95","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":167}
{"level":35,"time":"2023-07-12T14:18:02.099Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"userSetUtcOffset","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:02.102Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"loadLocale","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:02.110Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/loadLocale","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"94","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":9}
{"level":35,"time":"2023-07-12T14:18:02.116Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/userSetUtcOffset","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"95","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":18}
{"level":35,"time":"2023-07-12T14:18:02.129Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/rooms:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"87","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":229}
{"level":35,"time":"2023-07-12T14:18:02.243Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/licenses.isEnterprise","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":3}
{"level":35,"time":"2023-07-12T14:18:03.372Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/users.presence?ids[]=****","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":3}
{"level":35,"time":"2023-07-12T14:18:14.933Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/license:getModules","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"142","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":1}
{"level":35,"time":"2023-07-12T14:18:19.079Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/license:getModules","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"142","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":1}
{"level":35,"time":"2023-07-12T14:18:37.144Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/license:getModules","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"142","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":1}
{"level":35,"time":"2023-07-12T14:18:40.808Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"public-settings/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:40.818Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/public-settings:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"122","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":11}
{"level":35,"time":"2023-07-12T14:18:40.826Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"GET","url":"/api/v1/me","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":13}
{"level":35,"time":"2023-07-12T14:18:40.984Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"private-settings/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:40.986Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/private-settings:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"123","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":2}
{"level":35,"time":"2023-07-12T14:18:41.052Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"subscriptions/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:41.061Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/subscriptions:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"120","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":12}
{"level":35,"time":"2023-07-12T14:18:41.124Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/permissions:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"118","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":3}
{"level":35,"time":"2023-07-12T14:18:42.166Z","pid":1,"hostname":"5aecbb078c7b","name":"Meteor","method":"rooms/get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","*instanceid*":"*instanceid*"}
{"level":35,"time":"2023-07-12T14:18:42.188Z","pid":1,"hostname":"5aecbb078c7b","name":"API","method":"POST","url":"/api/v1/method.call/rooms:get","userId":"****","userAgent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0","length":"112","host":"*serverIP*:3001","referer":"https://*serverURL*/home","remoteIP":"*clientIP*","status":200,"responseTime":23}

Start by reproducing the login flow in the React Native iOS app using the reported Rocket.Chat and Fairchat versions, then inspect the request to /api/v1/login alongside the LDAP logs. Compare the successful browser response with the iOS response and determine what leaves the app on the login screen. Done means successful iOS login or a user-visible error for the reported configuration.