We recently upgrade to 2023 R1 23.105.0016 and our Device Hub application is no longer working.
[Printer] [Error] Attempt 1. Failed to connect to the ‘site url’ server. Microsoft.AspNet.SignalR.Client.HttpClientException: StatusCode: 404, ReasonPhrase: 'Not Found', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
It has been working for months with no issues and we did not change any configuration prior to or after the upgrade. Do we need to change the configuration for the upgrade or is there a new version?