Grandstream WP826 registration failed for a few sec

Help & Support
1

Hi, I got a new Grandstream WP826, and I notice that it frequently fails to re-register for approximately 2 to 5 seconds, then successfully re-registers. Unfortunately this wakes up the phone, it makes a ping sound and turns the screen on which wastes battery. This happens fairly often, maybe a couple times an hour with a re-reg time of 10 minutes.

I’m guessing I have some settings not set properly? I have encryption turned on, so to my understanding SIP traffic goes over TCP, so why would it have a (brief) problem re-registering in that case? Shouldn’t the connection already be open?

I followed the guide at https://wiki.voip.ms/article/Grandstream_WP810,_WP820,_WP822_and_WP825 as best I could with the newer device. Ended up setting re-registration to a lower timeout (10 min instead of 3) because there is a TCP keepalive. So I’m not worried about the connection being closed by firewall.

My relevant SIP settings :point_right: WP826 account SIP settings - Album on Imgur

I haven’t figured out logging on this phone yet but I suppose that’s the next step … it supports sending syslog to another device, as well as logging to its own memory. Amazing times we live in that a $70 handset does this.

2

Did increasing the re-registration time fix that problem, are just lessen the number of occurrences? I had exactly the same problem (only with T33G phones). All phones did the same thing, like you described. VOIP.ms worked with me for a while, until they got tired of me. Lots of logs, lots of things tried, but never solved it. Sometimes it would go a day or two okay, then do it five times in the next hour.

They finally gave up and suggested that it probably wouldn’t happen during a conversation. I had to switch our company to Vonage. Liked VOIP.ms better, but couldn’t stand the interruptions in service.