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Bugs Killed

Windows

Expired VPN certificate blocks Cisco Secure Client

VPN access was failing because the VPN certificate had expired. The certificate was found and renewed, and VPN access worked again after the change.

Killed once by someone from XL.net, on 2026-10-28.

Affects

Apps

  • Cisco Secure Client

What you see

  • VPN connection attempts do not complete in Cisco Secure Client.
  • The VPN certificate is expired.

Why it happens

Likely The remote access VPN certificate had expired.

When it shows up

Cisco Secure Client cannot connect and the VPN endpoint certificate is expired.

You are in this case if:

  • Certificate expiry date is in the past for the VPN certificate.
  • Connection attempts fail until the certificate is renewed.

1 fix below

The steps that killed it

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Someone from XL.net killed this on a Windows computer on 2026-10-28. It is written up from that one repair, so it cites no outside page.