webMethods API Gateway Standalone server- getting access denied on token generation on intermittent basis

*Product/components used and version/fix level:*API Gateway Standalone 10.15 Fix 15

Detailed explanation of the problem:

The issue is occuring while token genedation from apigateway 10.15 standalone server.
Ratio being 3:2 in every 5 token generation attempts, success to error ratio.

The intermittent failures reads the below error on token generation:

Port access exception access denied

Various processes involved and causing access denied are listed below:
Server.aclmanager.process
Dispatchprocessor.process
Concurrentrequestlimitprocessor
Httpinvokehandler
Pooled thread

Kindly suggest how to resolve this.

Thanks in advance.

Error messages / full error message screenshot / log file:

Question related to a free trial, or to a production (customer) instance?

Hi, you might have token as API key or JWT or other creds. Access denied exception is when you use invalid token. As you mentioned it is standalone, did you check the validity of the token in given time frame?