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New Member

ACS 3.3.3 to 4..1.1 eval problems


i'm trying to upgrade from 3.3.3 (windows) to 4.1.1 and i get an error claiming another connection to the ACS is running, i.e. windows explorer etc but netstat shows nothing else connected

anyone has this issue before?

thanks to anyone taking the time to respond - gratefully appreciated


Re: ACS 3.3.3 to 4..1.1 eval problems

The error that we are getting is generally due to huge accumulation of logs in ACS installation folder :

Please remove all the file from following location and then try ( these files are debug files, so we donot require them) :








Please take a backup of following folder, if auditing is required in our organization :


After taking backup of this folder, please remove logs from following location:


\Logs\Backup and Restore


\Logs\Failed Attempts

\Logs\RADIUS Accounting


\Logs\TACACS+ Accounting

\Logs\TACACS+ Administration

- Stop any anitvirus software that might be running.

- Ensure that if you are using CSMARS, and you are using pnlogagent, then that service is stopped, which can be done from services.msc.

- In the end, Also make sure that Drive on which ACS is installed or intallation folder or sub-folders are not shared.



Please rate if it helps!

New Member

Re: ACS 3.3.3 to 4..1.1 eval problems

thanks for your help and time in replying

my problem was resolved by a reboot of the server

many thanks