While trying to login Ring central app, it says "please check your network connection and click retry to reconnect." we are using office laptop with VPN.All of a sudden, Ring central stopped working from June 30.

Outlook plug in says the error message "please check your network connection and click retry to reconnect."

While trying to login via chrome, provided username,password, otp it says " "sorry, we cannot recognize the device.please use other device or browser and try again."" checked internet options TLS 1.1,TLS 1.2,SSL 3.0 are checked. Tried using IE, still the same error.

IE version is 11.

Tried uninstalling Ring central meetings, Ring central desktop app (version 20.2) and installed the same from RC website, still same error message.

We tried joining the meeting through meeting link or meeting ID, it says the error message "meeting id is invalid"

kindly provide your valuable suggestion to resolve this issue.