Event ID - 20108

Event Id20108
SourceRouter
DescriptionUnable to open the port <portname> for use. The port is already open.
Event InformationYour Microsoft Windows NT Routing and Remote Access Service (RRAS) Server may fail to redial a demand dial connection when the connection is dropped or lost. The above event id with 20105 will be logged in event viewer.
CAUSE :
This problem occurs when the port that the demand dial interface is configured to use is already in use by another application or service. 
RESOLUTION :
To resolve the problem, close or disable the application or service that has control of the port that your demand dial interface is configured to use.
Reference Links Event ID 20105 or 20108 on RRAS Server That Will Not Redial

Catch threats immediately

We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.

See what we caught

Did this information help you to resolve the problem?

Yes: My problem was resolved.
No: The information was not helpful / Partially helpful.