Ipad 4 not charging, or connecting to wifi unless close. Fix?

I have an Ipad 4 that had issues on 6.1.3 and when I updated to ios 7.0.2 I had more issues. On both ios versions I could not connect to my wifi unless I was really close to the router, and now that I updated to ios 7 the usb cable stopped charging, I can connect to itunes but my ipad is practically useless now that it doesn't charge