VPN session expires too often or never, adjusting the timeout.
Too short and users complain every coffee break. Too long and a stolen laptop has days of access. NIST and CIS roughly suggest 8-12 hour user tunnel, 30 min idle. Tune to your sector risk, not to helpdesk complaint volume.
Try this first
- 1Check current session lifetime and idle time in the VPN concentrator config.
- 2Set hard limit to one workday, idle to 30-60 min.
- 3Add MFA step-up for sensitive actions, then you can set session a bit wider without going sloppy.
- 4Logging: capture connect/disconnect events so you can later trace who was where when.
When to bring us in
You have sector requirements (DigiD, NEN 7510): read the literal requirement, sometimes it says 'max 12 hours' or 'idle 15 min'. Match it, otherwise an audit will fail you.
See also
- VPN will not connect or keeps droppingTwo main causes: your home internet or the VPN server. One quick test separates them.
- VPN connects but corporate folders are unreachableConnection says "green" but your network drives will not open. Almost always a DNS or routing issue.
- Home PC slow on VPN, fast at the officeThree suspects: home internet, VPN server limits, or routing that takes a long detour.
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