For what it is worth,I had the same problem.I was using a linksys router before with no problems,since then I switched over to a different ISP(embarq) I hooked up my new wireless router with no connection to LW.....on top of that,LW said I had a firewall,Tech support by phone was no help,I managed to grab a technician out in the field in my neighborhood and told him my prob. They struggled as well...to make a long story short,it was my wireless router,they switched it out back to a linksys system and it works fine.I think alot of the problem w/ connections is actually the router. I ended up having two technicians in my house trying to figure out this problem...once again,it was the router i was supplied when I 1st joined embarq...I am assuming it was the latest and greatest router(white in color,I believe it was called 2wire?)Hope this helps everyone....oh,by the way,I am also on a Mac