As SB9 suggested, delete and refresh links when the database opens, or have a button to allow refresh on demand. There's various examples on EE and elsewhere if you google 'access refresh linked tables'
I have this in several databases i've developed to switch between DEV and PROD versions. I can't post the code right now, but can do later today if you're still stuck. The top 3 results when I googled the above search string were all viable VBA for doing the job.