Verizon Connectivity

[JTHastings]

I have had a 3.4 forum for almost 2 years now and I am in the process of upgrading to 4.1 and a serious problem has apparently come to light. It seems that anyone using a Verizon phone service (be it an iPhone or an android) is having VERY slow response time (even times out) from our 3.4 forum as well as on the newer 4.1.13 test site. When connecting via wifi - no problem. People using AT&T, no problem. I am at a loss for understanding what the issue might be. Has anyone else experienced this or have any idea what might be wrong? I suspect Verizon but.....

[Rhett]

This would indicate an issue with Verizon in this case. 

[JTHastings]

Thanks Rhett, I figured as much as well but what type of problem could it be. The issue comes from various geographic locations, I am thinking something concerning DNS but I just don't know.