Hi
1. Clean up browser cache ( keep passwords )
2. Run as Admin
ipconfig /renew
3. Open browser in private mode ( incognito mode )
4. Clean up Metadata cache
Open Business Central tenant URL and add "?previewfeatures=disable-MetadataCache" appended to the URL.
businesscentral.dynamics.com/
5. Once completed, close the browser and open a new one and use Business Central as usually
This mitigation needs to be performed for each browser/user and is persistent until browser cache is cleared.
Note > If incognito mode is used, mitigation is only valid for that private browsing session and needs to be reapplied each time
This should disable browser side caching .
Developer Mode > More tools > Application > Local storage > Clear all cache.
Select BC url under Local Storage, clear all cache.
Refresh BC URL
5. To verify if this is a DNS issue, try to connect using other network or a mobile phone ( 3/4 G device) creating a hotspot.
6. Collect more details, enable Browser debugging .
Edge /Chrome Press F12 and then, select the Sources panel.
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Opening the browser console, we could see the same promise rejection that we saw in telemetry, but additionally some more errors
Let me know the results.