Network Switch

Hello, i just got oukitel k6000 plus and have one small problem. when i play mulitplayer online game, and my network switch from 3G to 4G or other way, it disconnects me. This didn't happend on my previous phone. I tried to limit my network to 3G, but that's just slow. Is there a way to solve...

why the distance between to computer without any repeater should be 50 meters, but between to computer that connected with a repeater it can be 100 meters?

I got given an iphone4 when I was in The States, it was originally on the network AT&T, which is an American network and cannot be received here in the UK. I've been told that I can get it 'unlocked' so that it will work on any network in any country, however upon contacting Apple, they told me...

I see the F2 key has a wirelss symbol and expect that I can turn the laptop's network switch back on with a combination of keys; can you help with the combination? Guess is that the cat slept on the open keyboard overnight and found the combination without help. If you can't help, I'll have...