I think something is wrong with my wifi radio

[TRICKorDEVICE]

My phone appears slower on my wifi than on HSDPA, and when I am loading things I often get the window that says I lost connection. WTF suggestions, do I need to go exchange the phone?

 

[Atrix4G]

I get that alot too, I think its just the phone because it happened on my first atrix I got

 

[Jp77]

I cant even get wifi to connect to internet. It connects to my home wifi then has no internet connection.