I have chinese made 500-S probably fake but worked correctly until yesterday. I changed to GEMINI 4.40 with NO time BOMB. Everithing was ok except internet connection which i lost

I tried to turn back to GEMINI 3.5 but nothing changed. I have a rooter which is 192.168.1.1
The IP of DM is the same I used before i change to gemini also other settings was same as befor. I can see the device from the PC and can communicate to it but still no connection. When i go to blue pannel and try to download addons it says no connection - check settings