SOLVED SIP-T53 and SIP-T54W loosing registration and reconnecting

[FunkStar]

Hi

I just installed 15 SIP-T53 and one SIP-T54W. The devices provisioned well and registered but after a few minutes they lost the registration. (Registration failed) after a while they are online again for a bit.
I also noticed double registrations sometimes. Its a complete new building and new devices (we were using a mix of T42G/S T46 before.)

Any idea what could be wrong? Only thing I noticed is that devices in the Registrations are showing as "Registered TCP expsecs XXX" while in other locations its showing as"Registered TCP-NAT expsecs XXX"
Firewall is an USG-Pro4 with SIP-ALG disabled (we have this setting in different locations).

firmware is:

96.84.188.7 (Yealink SIP-T54W)
95.84.188.7 (Yealink SIP-T53)

As you can see the transport is set to TCP and the server expire to 80.
Server Retry Counts are set to 3.



I also did an "Export All Diagnostic Files" first set some log lvl's to 6 but I can't seem to find the "register failed error" in te logs...

edit: It must be a device setting I think, I have 2 "commend SIP Series 4.3.1" intercoms connected for a few days without any trouble and using zoiper on this network also works.

 

[FunkStar]

Connected our reseller and asked for an more up 2 date .rom file. I received T54W(T57W,T53W,T53)-96.85.188.3 but sadly that didn't solve the problem. I also have a W60B and this is the only device that says connected... I tried comparing settings but I can't really find anything.

I'm trying to analyse the diagnostic file further but any help is welcome.

 

[FunkStar]

Couldn't find anything in the yealink files but sngrep does show this for all devices (T54W & T53 except the W60B)

 

[FunkStar]

Fixed: It seems the SIP ALG module was disabled but the provisioning didn't work. After a reboot, settings took effect and all devices got the "Registered TCP-NAT" status instead of "Registered TCP". No idea why the W60B and Commend devices did work and got the "Registered TCP-NAT" status right away...