SPA525G2 Works, but BLF Line Keys Flash Orange with New NetGear R6400 Router Installed

[Spencer H]

This problem has been annoying me for about one year. We installed a new NetGear R6400 router at this remote workers location, who had been using the same Cisco SPA525G2 phone for several years. The BLF subscribed line keys were working properly before the router was changed out. After the NetGear R6400 was installed the (3) BLF line keys now flash orange. These three keys are other users extensions, normally they show red when the person at that extension is on the phone or green when they are not on the phone. Otherwise, this person's phone works perfectly. The server is running FreePBX. The phones firmware version has been upgraded to 7.6.2.

Anyone know what might be happening with this one phone and location?

Thank you in advance.

Spencer

[Spencer H]

Anyone have any thoughts on my previous issue?

Thanks,

Spencer

[Dan Lukes · Accepted solution]

I has moved your thread to community related to the product in question. Your chance to receive answer will increase because of it.

According the question itself - it it has worked in pre-NetGear times, but doesn't work now, then it's network issue. Either firewall or NAT (with possible SIP ALG). Check NetGear configuration and/or catch SIP network packets between SPA525G2 and FreePBX. Preferably on both sides (e.g. on SPA525G2 side of Netgear as well as FreePBX side of NetGear) if possible. It will help with further analysis.

[Spencer H]

Thank you Dan! The problem was SIP ALG being enabled by default on this new router. I disabled SIP ALG and now the BLF lights are working again.