Wired connection trouble

So my PC have a wired connection, and I use connectify to share it wireless. But I have problems connecting it to my WiiU and partly my 3ds.

On the 3ds it works somewhat, but dissconects sometimes. 

But, since this is WiiU hardware help I'll ask for help about the WiiU and I think my 3ds problems are for the same reasons as the WiiU ones.

Now the connection on my WiiU only works for 30sec - 1min after I start the connectify hotspot, after that I lose the connection and have to restart the hotspot for it to work again. I'd love to download NES Remix and watch the Nintendo Direct videos in higher qualities on the Eshop. 

Please help me if anyone knows what the problem could be!

One note, the 3ds connection worked perfectly some weeks back, but not anymore, I normally live at a hostel with a internet that only works on my school computer. I'm home for christmas for a couple of weeks, and my dad only have a wired internet... I'd buy him a wireless router for christmass if I could afford it. So last time I was here I used connectify to play pokemon on the 3ds and did some battles, but now I get disconnected from all battles after 1-4min.

Again, thanks in advance for any help, even if it can't be solved I will appriciate any help