I recently bought a TTIG and I tried to read through all the post with similar problems and had the Gateway running for 6 days now during the Easter holiday without any luck, restarting it periodically to see if that would help.
I tried connecting it to 3 different wifi’s and it got internet from all 3. I confirmed that it was connected to my router with an ip and I could ping it just fine.
It’s doing the fast green blinking (Blinking (freq 1/4 sec)) trying to establish connection to LNS/Configuring radio. It does the Green/Red alternate blinking once in a while but quickly goes back to the fast green blinking.
Gateway EUI 58-A0-CB-FF-FE-80-33-36
Any pointers to fixes / additional troubleshooting would be very helpful!