Citrix: Metaframe presentation server connection interrupted

This web site proposes
http://www.experts-exchange.com/Networking/Citrix/Q_21422380.html
Also Citrix Support Forums discuss this issue
http://support.citrix.com/forums/thread.jspa?forumID=1&threadID=59609&tstart=195
http://www.experts-exchange.com/Networking/Citrix/Q_21422380.html
This problem is solved:
I deleted HardwareID from my register
HKEY_LOCAL_MACHINE->Software->Microsoft->MSLicensing->HardwareID
Thanks. I will keep that for reference. I cleared mine by re-installing SP2, ICA client and turning off the WinXP SP2 firewall.
Also Citrix Support Forums discuss this issue
http://support.citrix.com/forums/thread.jspa?forumID=1&threadID=59609&tstart=195