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Bugs Killed

Windows

Cached credentials broke access to mapped drives and Microsoft Access

The user was connected to VPN but could not open Microsoft Access or reach the U: drive. The issue was resolved by removing old cached credential entries and remapping the drives, then confirming Access worked.

Killed once by someone from XL.net, on 2026-04-02.

Affects

Apps

  • Microsoft Access

What you see

  • VPN is connected, but Microsoft Access will not open the file share content.
  • The U: drive is not reachable even though the computer is on VPN.

Why it happens

Likely Corrupted or stale cached credentials on the workstation

When it shows up

A Windows computer is connected to VPN, but a mapped drive or Microsoft Access file-share resource still fails to open.

You are in this case if:

  • Windows Credential Manager has old saved entries for the affected share
  • The drive/share starts working again after the saved credentials are removed and the drive is remapped

1 fix below

The steps that killed it

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Someone from XL.net killed this on a Windows computer on 2026-04-02. It is written up from that one repair, so it cites no outside page.