Hi All, I have Exchange server 5.5. I have installed OWA at other Windows NT server 4.0 machine. My problem is that, whenever, I try to connect to that machine via http://IPADDRESS/EXCHANGE <http://IPADDRESS/EXCHANGE> , it shows opening page and after sometime, it says the request timed out. Both, the Exchange Server and the IIS server machine (which OWA is installed at) are on the same network and showing each other in the network neighborhood. Kindly note that I have service pack 4 for Exchange server 5.5 and OWA is installed from the setup disk of 5.5. Both the computers connect to each other via NETBEUI protocol as Service Pack does not bind TCP/IP with both the Internal and Extenral NIC. Any solution to the problem!