Exchange 2007 CAS having issues connecting to second CAS server
Posted on 2010-08-13
I have a single forest domain with 6 Exchange servers on the same vlan, and have a newly installed Exchange 2007 environment. 2 HUB/CAS, 2 Mailbox and 2 Edge servers.
When logging onto one of the CAS servers, I navigate to Server configuration > Client access. I get the error below when clicking on the other CAS server listed in the window. The same applies when I log on to the other CAS server and perform the same actions. I was reading the web and came across some posts about opening RPC ports because of Windows firewall being enabled.
I just wanted to add that If I tuen off the Windows firewall, this resolves the problem. But I do not believe this is the correct solution.
Error: The task was not able to connect to IIS on the server xxxx. Ensure that the server exists and is reachable from this computer: The RPC server is unavailable
Error: The task was not able to connect to IIS on the server xxxx. Ensure that the server exists and is reachable from this computer: The RPC server is unavailable.