Philip Nixdorf

I have been having this problem since March 1. I had to restore my laptop to a version of a couple of months ago and since cannot connect to Second Life. I have tried the following without success: 1) reinstalling SL viewers (Second Life viewer, Firestorm) 2) trying multiple viewers (Second Life, Firestorm, Singularity) 3) cleared DNS cache 4) using Google DNS 5) powering off laptop and router The problem does not ocur on desktops connected to Verizon FIOS by cable, only on my wireless laptop. This is extremely frustrating. Can anyone help? Please?