Unhandled Exception: No such host is known

Describe the issue
We are following the exact steps, however, when we start the CRWorkerRole_IN_0 in the web service, we get the attached error or below pasted.
Thanks for any help !

Unhandled Exception: No such host is known
at System.Net.Dns.GetAddrInfo(String name)
at System.Net.Dns.InternalGetHostByName(String hostName, Boolean includeIPv6)
at System.Net.Dns.GetHostEntry(String hostNameOrAddress)
at Sample.ComplianceRecordingBot.WorkerRole.AzureConfiguration.GetInstancePublicIpAddress(String publicFqdn) in D:\microsoft-graph-comms-samples-TeamsBot\Samples\BetaSamples\LocalMediaSamples\ComplianceRecordingBot\WorkerRole\AzureConfiguration.cs:line 380
at Sample.ComplianceRecordingBot.WorkerRole.AzureConfiguration.Initialize() in D:\microsoft-graph-comms-samples-TeamsBot\Samples\BetaSamples\LocalMediaSamples\ComplianceRecordingBot\WorkerRole\AzureConfiguration.cs:line 231
at Sample.ComplianceRecordingBot.WorkerRole.WorkerRole.OnStart() in D:\microsoft-graph-comms-samples-TeamsBot\Samples\BetaSamples\LocalMediaSamples\ComplianceRecordingBot\WorkerRole\WorkerRole.cs:line 92
at Microsoft.WindowsAzure.ServiceRuntime.RoleEnvironment.InitializeRoleInternal(RoleType roleTypeEnum)
at Microsoft.WindowsAzure.ServiceRuntime.Implementation.Loader.RoleRuntimeBridge.b__0()
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadHelper.ThreadStart()

' [2022-12-01T13:02:15.000Z] Last exit time: [2022/12/01, 13:02:17.510]. Last exit code: 0.
error code.txt

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• Version [e.g. 22]

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Start in Samples/BetaSamples/LocalMediaSamples/ComplianceRecordingBot/WorkerRole/AzureConfiguration.cs at lines 231 and 380, then inspect WorkerRole.cs line 92 to trace startup configuration. Check which publicFqdn value is passed to GetInstancePublicIpAddress and verify the worker's startup behavior after the hostname issue is addressed.