Event ID - 686

Event Id686
SourceMicrosoft-Windows-ADFS
DescriptionThe AD FS troubleshooting log detected that the maximum file size cannot be enforced given the current traffic level and troubleshooting verbosity.
Directory: %2
MaxFileSize: %3
Event InformationAccording to Microsoft :
Cause :
This event is logged when the AD FS troubleshooting log was not able to start.
Resolution :
Create a log directory and assign the appropriate permissions to the user
If access to the log directory is denied, assign the appropriate permissions to the user. If the log directory is not found, create one. The location of the log directory is specified in the web.config file.
Verify :
Verify that Active Directory Federation Services (AD FS) log files have been generated in the log files directory.
To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.
To locate the log files directory
1.On the federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
2.In the console tree, right-click Federation Service and then click Properties.
3.On the Troubleshooting tab, check the location of the log files under Log files directory.
Reference LinksEvent ID 686 from Source Microsoft-Windows-ADFS

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.