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.

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#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!!!