Frequent deregistration

[aabramov]

I have two new W52H units connected to the same base.
We are using 3CX pbx, v.11

Periodically, about every 2-3 hours, the units will deregister from the PBX and reconnect about 10 minutes later. Both of them at the same time.

The extensions work while this is going on.

This might be related to the "Searching for Base" issue

[elementpbx]

I have the issue where I see "Searching for Base", but I can call the phone without issue.

[Yealink Support]

Hello all,
What's the firmware are you using now? 25.30.0.20?
If yes, please upgrade to our latest base firmware 25.30.0.29 as below:
ftp://Cathy:6br6pcyl@ftp.yealink.com/fir...0.0.29.rom
Any test result please let us know, thanks.

[aabramov]

I upgraded the firmware and it seemed to work for one day.
The next day were were back to the same problem. I would receive notifications of the extension being unregistered about 3 times a day

I also noticed that the IP on the base changes and the connected time is always less than 1 day (right now it says: Uptime 0 days 7:0 even though I haven't touched it in that time).

I switched the phone to a static IP

[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.