Unknown Error... Login is attempting to use port 21114 for basic connection from phone to PC

Login error on self-hosted RustDesk Server OSS

Unknown Error: Exception: Failed to parse response.
reqwest: Error { kind: Request, url: "http://ipaddress:21114/api/login", source: TimedOut }

[2025-11-30 01:07:37.413694 -06:00] INFO [src\rendezvous_server.rs:185] Start
[2025-11-30 01:08:19.351462 -06:00] INFO [src\common.rs:121] Private key comes from id_ed25519
[2025-11-30 01:08:19.351497 -06:00] INFO [src\rendezvous_server.rs:1205] Key: [REDACTED]
[2025-11-30 01:08:19.356212 -06:00] INFO [src\peer.rs:84] DB_URL=C:\WINDOWS\ServiceProfiles\LocalService\AppData\Roaming\RustDesk\config\db_v2.sqlite3
[2025-11-30 01:08:19.357943 -06:00] INFO [src\rendezvous_server.rs:99] serial=0
[2025-11-30 01:08:19.357954 -06:00] INFO [src\common.rs:45] rendezvous-servers=[]
[2025-11-30 01:08:19.357956 -06:00] INFO [src\rendezvous_server.rs:101] Listening on tcp/udp :21116
[2025-11-30 01:08:19.357957 -06:00] INFO [src\rendezvous_server.rs:102] Listening on tcp :21115, extra port for NAT test
[2025-11-30 01:08:19.357965 -06:00] INFO [src\rendezvous_server.rs:103] Listening on websocket :21118
[2025-11-30 01:08:19.361802 -06:00] INFO [src\rendezvous_server.rs:138] mask: None
[2025-11-30 01:08:19.361811 -06:00] INFO [src\rendezvous_server.rs:139] local-ip: ""
[2025-11-30 01:08:19.361824 -06:00] INFO [src\common.rs:45] relay-servers=[]
[2025-11-30 01:08:19.366741 -06:00] INFO [src\rendezvous_server.rs:153] ALWAYS_USE_RELAY=N
[2025-11-30 01:08:19.366768 -06:00] INFO [src\rendezvous_server.rs:185] Start

Already checked:

• NAT rules on router.
• Firewall on PC (win11 auto-configures to permit RustDeskServer) although, I do not see a literal entry for hbbr and hbbs
• nssm

Start by reproducing the phone-to-PC login request to /api/login and compare it with the server's listed port listeners. Review the referenced entries in src/rendezvous_server.rs, src/common.rs, and src/peer.rs alongside the NAT and firewall configuration. Done means identifying why the request to port 21114 times out and documenting a reproducible resolution or narrowed cause.