Intermittent "Invalid API key" error on ASP.NET

vbamboovbamboo Registered Users Posts: 1 Beginner grinner
I have a ASP.NET web application that acts as an API service for a photography-related mobile app. Occasionally, the web application is not able to communication with SmugMug. The SmugMug API returns error "invalid API key."

Once the error occurs the first time, it is returned after every subsequent request to the SmugMug API. In troubleshooting, I have discovered that if I rename the Web.config file and immediately rever it to its original name, the errors from SmugMug disappear and the calls to the API resume working correctly.

This fix is temporary, however. The error will return after a few days.

How might I begin debugging this issue?
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