It may be network issue or any temporary issue. Try uninstalling and re installing the app again.

If the issue still there, try connecting RingCentral support team here to resolve the issue

I am getting this same error. I uninstalled and reinstalled the app again. Any suggestions? The Support team suggested it could be something on my device but I have no idea what that could be. It's working on the mobile app and on my laptop, just not on my desktop

Hi @Nicole Robinson, is your ticket with Support team already closed?

I narrowed it down to a WiFi issue. At our office we have public wifi, my company then has our own router and our own wifi that is connected to the public internet connection. I'm just not sure what to do next.