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HTTP/1.1 503 Service Unavailable

Posted on 2011-05-03
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Last Modified: 2012-05-11
We lost power a few weeks ago and since then when logging into OWA we get HTTP/1.1 503 Service Unavailable. We are in a multi domain forrest and the other domain backend servers are working perfectly. our exchange users can connect fine and IIS is running on the box. I'm at a loss here.

I've gone thru all the steps here http://support.microsoft.com/kb/823159 with still no resolution.

as a side note.. since the power outage i've been getting the pen icon on my DHCP server
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Question by:jgruenwald
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by:Praveen Balan
ID: 35514134
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by:jgruenwald
ID: 35515325
I dont think thats it.. I can browse locally by http://server/exchange.  But i when i try to login via the FE server i get the HTTP/1.1 503 Service Unavailable error.
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by:Praveen Balan
ID: 35516205
Hi Mate,

Your statement in the question is little confusin "We are in a multi domain forrest and the other domain backend servers are working perfectly" What is it mean.. some of the domain under the multidomain forest is working even via the FE server?

Also will you please verify the event log for any related errors ? Becasue the error that you have mentioned here can happen because of verious reason inclusing the Active Directory and the Exchange Availability. See for any DSAccess errors also and other related errors.

Please also run ExBpa and see for errors...

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jgruenwald earned 0 total points
ID: 35691478
Turns out the issue was that the PDC was not pushing WINS info to the FE and its WINS server. I did a push/pull from the local WINS server and it fired right back up.

thanks
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by:jgruenwald
ID: 35718444
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