Windows
Access error resolved after certificate and connection file update
Access showed an error until the security certificate was updated and the outdated Access connection file was replaced. Access then opened successfully when the computer was on the VPN.
Killed 3 times by someone from XL.net, most recently on 2026-09-18.
Affects
Versions
- Windows
Apps
- Access
What you see
- Access shows an error instead of opening.
- Access opens successfully after connecting to the VPN.
Why it happens
Likely The computer had an outdated Access connection file and needed a security certificate update.
When it shows up
Access fails to open on a Windows computer until the VPN is connected, especially when the connection file is stale.
You are in this case if:
- Access only opens after the VPN is connected.
- The Access connection file on the computer is outdated.
- The computer's security certificate needs to be updated.
1 fix below
The steps that killed it
The steps are behind a quick check
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Someone from XL.net killed this on a Windows computer on 2026-09-18. It is written up from that one repair, so it cites no outside page.