Sometimes an error might occur when installing KSE:
KseCheckServicePortIsFreeActionStep has completed with an error: Service network port 13100 is occupied by another application…
Diagnostics
Screenshot or KSEInfoCollector.
Make sure that port 13100 is open and not used by any application, and repeat the installation. This can be doneusingthe command below. You will see a chart with a process ID (PID column) next to the address and port:
netstat -aon | findstr 13100
You can then find this process by the ID in Task Manager or using the command below. Use the process ID you found in the previous command instead of the %PID% below:
tasklist /fi "pid eq %PID%"
Example
tasklist /fi "pid eq 18060"
Workaround & Solution
There's no way to change the port used by KSE. So, the only option here is to free the port used by an application and repeat the installation.
SometimesISS or W3WP.exe might be using the port. In some cases, this port is occupied after the Exchange updates, andthe port should be released after the server restart.
RCA
Some application is using the port 13100.
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Problem Description, Symptoms & Impact
Sometimes an error might occur when installing KSE:
KseCheckServicePortIsFreeActionStep has completed with an error: Service network port 13100 is occupied by another application…
Diagnostics
netstat -aon | findstr 13100
tasklist /fi "pid eq %PID%"
Example
tasklist /fi "pid eq 18060"
Workaround & Solution
There's no way to change the port used by KSE. So, the only option here is to free the port used by an application and repeat the installation.
Sometimes ISS or W3WP.exe might be using the port. In some cases, this port is occupied after the Exchange updates, and the port should be released after the server restart.
RCA
Some application is using the port 13100.