I seem to be having trouble with my server holding the API key. I've received an email a couple times, that informs me that there is a problem and when I log in, sure enough, the api key is missing.
Logging into my wpmu dev account provides me with the same key which I enter and things light up green (giving me a satisfying feeling of goodness thank you very much) and I save the settings. Sometime, later, the issue will happen again.
I have caught this happening even before I receive an email. Always, the same api key does the trick. Thoughts?