WD Live TV cannot connect to WI-FI network! Please Help!

It seems my unit has a mind of its own. Now I Can see option to connect on WI-FI. Last night I was able to connected sucessfuly and it was working as a charm for a couple of hours. Than video froze and when I restarted I could not connect again. When I turned this morning it was OK again but after an hour SAME S**T!

 

Now I cannot connect to my WI-Fi. Well it is “connecting” but I cannot access anything on my LAN and when I check network connection it shows IP is valid but cross mark on both DNS and Internet connection.

 

I really dont understand how this thing operate.And why it works and than stops working.

 

Please help!