I have a single client accessing our network remotely through a Citrix NFuse page with a Windows 98 OS. The user is able to log into and be authenticated by our firewall. They get to the NFuse page and see the application icons for which they have security. No matter which one they click on they get the message, "Network or dialup problems are preventing communication with the Citrix server etc.....". First thing I did was have the user delete the HKLM\Software\Microsoft\MSLicensing\Store and HKLM\Software\Microsoft\MSLicensing\HardwareID keys in the registry. User reconnected and got the same error. On the license server I notice that the client was issued a temporary license at the time it tried to reconnect. Having the user take another look at the registry on her workstation, there was no License000 folder under the store key so the license never made it back to her. I had the user change her computer's name and reconnect. Again, the programs would not launch and gave the error mentioned above. I looked at the license server and sure enough it had now issued another temporary license with the new computer name. But again, back in her PC's registry there was no evidence of the license being received. Both the servers can see one another as verified by pings. Any takers? I have tried many other things too. More than I care to mention. We are running on an NT4 network. My terminal servers are running W2K SP3 and MetaFrame 1.8 SP3. My license server is located on one of my Citrix Master Browsers. It was recently moved but has been issuing TSCals for more than a month without incident until now. This user had a valid TSCal on her machine until about three days ago when it expired. As best I can tell her machine was in the middle of updating/renewing that license when our firewall blew chunks. She has not been able to get in since. As with the temporary licenses, her renewed TSCal shows as being issued in the license server but it appears the interupted connection prevented it from getting back to her workstation. Thanks for your time!