Dear Sir, As we have ISA Server installed on our Server and when i try to install the firewall client on clients by using the command line(//servername/mspclnt)from run command, it successfully installs the firewall client but its not connecting to ISA Server and in the taskbar when i point the cursor on the icon in taskbar it shows (ISA SERVER SERVER NAME IS NOT ACCESSIBLE) and when i update the firewall client it gives an errror that (THE SERVER IS NOT RESPONDING WHEN CLIENT REQUESTS AN UPDATE POSSIBLE CAUSES: - THE SERVER IS NOT AN ISA SERVER, - THE SERVER IS DOWN), I have already reinstalled the firewall client. Please provide the detailed solution for this problem for which i will be thankfull to you. Your Fast and immediate action is highly appreciate.... Thankyou and Best Regards, Mohammed Azharuddin