Microsoft SignalR technolgy is used for communicating real-time status updates between Nimbus and participating users. Luware Nimbus and related Apps use Microsoft SignalR to communicate content updates to connected clients immediately, rather than having the server wait for a client to request new data.

❌ CAUTION: Blocking SignalR has a direct impact on call information, user experience and reporting. There will be 30-45s update delays on the Nimbus frontend until a workaround method to receive the data is found. 

✅ To allow your Nimbus UI to correctly reflect data updates, ensure that your WebProxy does not block connections to the following destination: wss://*.signalr.net 

If you do not like to whitelist entire domains with wildcards and know your Nimbus cluster location, you can allow the following destinations instead:

lu-sigr-prod-nimbus-chno-01.service.signalr.net 
lu-sigr-prod-nimbus-chno-02.service.signalr.net 
lu-sigr-prod-nimbus-dewe-01.service.signalr.net 
lu-sigr-prod-nimbus-dewe-02.service.signalr.net 
lu-sigr-prod-nimbus-euwe-01.service.signalr.net 
lu-sigr-prod-nimbus-ukso-01.service.signalr.net 
lu-sigr-prod-nimbus-aue-01.service.signalr.net 
lu-sigr-prod-nimbus-use-01.service.signalr.net