LB2120 Reboots when SIP phone registers (.au)

[intense-rob]

LB2120 set up in in bridged mode in front of a SonicWALL SOHO. Latest firmware installed OTA.

+Data works fine alone
+Site to Site VPN fine

- As soon as a Polycom VoIP phone connects to the network (Phone > D-Link PoE Smart Switch > Dell SonicWALL SOHO firewall > Netgear 2120) and attempts to register, the Netgear reboots. As soon as reboot is complete and the phone attempts to register again, the modem reboots again. Other network devices stay online just fine, only the Netgear crashes. ie, the modem's lights all go out, including power for 10 or so seconds, then the standard boot-up lights until it comes back up.

Has anyone seen this or have a solution. Located in Australia with Telstra 4G service and Next Telecom SIP service (cloud PBX).

Thanks.

[intense-rob]

Noone even want to hazard a guess?

[intense-rob]

Just found this thread where SIP software was causing another Netgear product to reboot. Seems to be a bug somewhere in Netgear's protocol handling.

https://community.netgear.com/t5/Nighthawk-WiFi-Routers/Nighthawk-R7000-reboots-when-my-computer-is-...

[Greg-V]

Got the same problem. LB2120 in bridge mode.

Works fine for internet use, but as soon as a SIP call comes in to an IP Handset on the LAN, the LB2120 appears to reboot itself.

[Blanca_O]

Hi @Greg-V

May we request for the following information: 

- LB2120 SKU and firmware version 
- Describe the network setup 

Regards,
Blanca
Community Team