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I have advanced URL's turned on in DNN Enterprise. Every few page requests results in an internal server error (status code 500). My DNN event log is full of general exceptions:
Url Processing Exception: Exception in Url Rewriting Process
Http Status: 500 Internal Server Error
It is not every request, just perhaps 1 out of 3. There appears to be no pattern or reason to explain when it does or does not error.