Yealink Forums

Here is the scenario. I have over 40 T20P phones on the dedicated Internet connection. Some of them (random phones) are loosing registration.
Sometimes after phone is rebooted I can see a messages on the account page that registration failed. After I click "Confirm" button on account page, phone will register with no issues.

Can anyone explain why phone would loose registration or can't register after I turn it on but will register very quick when I click Confirm on Account Page.

Thank you