TTIG Problems, - no location data, wrong date/time, wrong channel and stability issues

Hi Guys,

i just installed my brand new TTIG and have problems with letting my Testdevice Join.

If placed in a location that only the TTIG can receive it, it doesnt Join, even if i can see in the console all the Join Requests and also the Accept answers.

Than i placed the device on a different location where it could be heard from other gateways and it could join there.
The only diference i can see that Date on my gateway is 1970… Could this be the reason for not able to Join?

(Before i came to this 1970 problem i created this post (sorry)

Thanks for help
Wolf.