Remote Data Access - Failing for 1 company

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I have one company that I cannot open from Remote Data Access...it just continually says unable to open, try again later.  All my other companies work fine.  I have been working offline with this company since this has happened - I would like to just stop sharing the company that is stuck as unable to open, and reshare the company I have been working offline with, but it won't let me because there is already one shared.  Any idea how to fix this?