Looking for an assist with my Razr M. Running Jelly Bean. The issue is with wifi being extremely slow while I'm on a phone call. While on the same call, if I were to switch it off and connect only to 4G it blazes. If I'm on wifi and hang up on a call, it starts working as normal. I've checked as many settings as I could find, wondering if anyone else is having a similar problem. Also looking for a solution if someone has found one. Confused, please help!