Can't Get On-Line but Can VPN...Interesting

Okay gang, here is whats happening...

I have been in a hotel for a month on business, I was able to to get on line via the hotel LAN and through that I could VPN into my network to check email. Last week, I noticed that after about 10 minites my traffic drops, I still have DHCP and I release/renew the IP. I basicly cant surf via the hotel LAN but I can use it if I launch the VPN. I have never had this problem before. I have run all scans that is in this site to check for virus, trojans, etc. I do know this, about 10 minites after I get athenticated via Hilton, I can hear things in my hard drive and then no surfing, only VPN. I have no Proxies running or anything. I call the hotel IT, there a joke, they told me to check everything I already did. PLEASE ADVISE!!!

Thanks in advance....Sorry for the bad grammer, no spell check.
Frank