I’ve been seeing a series of threads in the past few months regarding people experiencing the vague error

Your network access was interrupted. To continue, close the database and then open it again.

after upgrading their system to Windows 10.

Now, I won’t bore you with the details, but the gist of it is as follows.  If you use mapped drives (possibly when done through network Group Policies) to link your tables, it would seem the upgrade process, or Windows 10, screws things up.  There are 2 solutions to the problem:

1. Remap the drives manually
2. Use UNC paths when linking tables (this is the preferred solution as it eliminates any possible problem coming from drive mapping and this problem would never have occurred in the first place)

A few useful links on the subject with more information:

Your network access was interrupted. To continue, close the database and then open it again.
Access 2013 – Your network access was interrupted w/Windows 10
Your network access was interrupted error since Windows 10 upgrade