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Outlook clients can't get free/busy

Specific Outlook clients are getting message that the server is offline when doing calendering functions or reply to all when the Outlook status in online.

I have 2 domains. Domain A is the forest root and B is a branch (not a child). The Exchange server is in A and serves the users in both domains. All of the sudden (meaning I am unaware of the change) Outlook clients in domain B who are on a seperate subnet, firewalled, but have complete IP access to Exchange and DCs on domain A (no port restrictions) are getting message stating "The conneciton is the MS Exchange server in unavailable. Outlook must be online or connected to complete this action." Those users are getting and sending emails fine (except reply to all function).

Having a tough time tracking this one down, any suggestions?

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RolandCT

ASKER

Found out a DC in domain B was promoted to a GC that shouldn't have been (in seperate AD site than domain A). Removed GC attribute and all is well.

RolandCT

ASKER

Anyone know how you close a question you figured out yourself? I'm new to EE.

RolandCT

ASKER

Actually my problem is back. For some reason removing the DC as a GC only temporarily solved my problem...

RolandCT

ASKER

Permissions problem on GAL. Users didn't have deny on default only allow to their own. Not sure why that worked for months and then stopped.

RolandCT

ASKER

Free points since I can't close my own ticket. Thanks for the suggestion though.