Frequent deregistration

[Yealink Support]

Hello aabramov,
Sorry for this issue, so we still need to check some points:
1. Where you deploy your base and handsets? In your office? Is there many metal object? Or any obstacle? And how far of your handset and base?
2. The handset will change to "Searching for base" automatically, and you didn't do any operation before this?
3. How long it will reconnect again after appear "Searching for base" ?
4. It seems there's LLDP or VLAN in your network environment, they make the base reboot and change IP. So please access to your webpage-Network-Advanced, and disable LLDP and Vlan and check again.
5. If the problem is still, please set the Log Level as 6(webpage-Phone-Configuation), and reboot the phone, after the issue appear again, export the System Log to us.
Sorry for the inconvenience and thanks.