Solved

IAS fails to start - reports port in use

Posted on 2008-10-17
2
1,104 Views
Last Modified: 2012-05-05
A number of Windows2003 server have recently restarted after windows updates and the IAS service fails to start. The event log states that a port is already in use. By modifying the IAS server to support only 1812 and 1813 (removing 1645,1646) the service starts.
Has anybody else experienced this? Is it related to a new Windows Update?
The servers all run McAfee VirusScan 8.5 patch 5 also.
0
Comment
Question by:ImexTechnical
2 Comments
 
LVL 29

Expert Comment

by:Alan Huseyin Kayahan
ID: 22746511
Hi ImexTechnical,,
     I have twice encountered this. If you have Cisco ACS or TACACS installed in same server with IAS, you can encounter this problem. Second was weird that I tracked the port to process usage and found that DNS Server service was using that port. I stopped DNS Server service, started IAS service, then started DNS Server back

Regards
0
 

Accepted Solution

by:
FiveNines earned 125 total points
ID: 23416763
"The Internet Authentication Service service terminated with the following error:
Only one usage of each socket address (protocol/network address/port) is normally permitted."

You may see the above in the logs.
One of the recent updates allows DNS to use a large port range, including 1645-1646.

Here is the fix:  http://support.microsoft.com/default.aspx/kb/812873/
Just reserve the IAS ports above, reboot the server and you are good to go.


0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Numerous times I have been asked this questions that what is it that makes my machine log on so slow, there have been cases where computers took 23 minute exactly after taking password and getting to the desktop. Interesting thing was the fact th…
Restoring deleted objects in Active Directory has been a standard feature in Active Directory for many years, yet some admins may not know what is available.
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below. https://filedb.experts-exchange.com/incoming/2017/03_w12/1151775/Permutations.txt https://filedb.experts-exchange.com/incoming/201…

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question