Grandstream GSC3505 SIP REGISTRATION FAIL


#1

Hello,

I’m having trouble registering a SIP account on a GSC3505. I’m getting bat gateway error. What settings should I configure to make it work? The freePBX server is on an internal network same as the speaker.


#2

Under Account Status it says “502 Bad Gateway” instead of “Registered” or “Unregistered”.


#3

It says"502 Bad Gateway and Unregistered"


#4

I got the same issue too. I had to downgrade the firmware until it worked


#5

Which version of firmware are you using now?


#6

1.0.1.10, which doesn’t work.

1.0.1.9 didn’t either.

1.0.1.3 was the last that worked for me.


#7

Turn off NAT if local.


#8

It works!! Thanks a lot!!!