The University of Texas at Austin

Virtual Private Network

Understanding VPN Connection Time Limitations

The following limits apply to all VPN sessions using the desktop IPSec client:

  • If your VPN session has been inactive for 30 minutes, it automatically terminates. For a connection to be considered active, there must be data (other than timeout queries sent to the VPN server) moving back and forth on the VPN between your remote location and campus. Examples of data traveling the network include: using your desktop Outlook client to read email stored on a campus mail server, using a network resource or departmental services, printing on a campus printer, or accessing a service on campus that uses a TCP or UDP port that is blocked by the campus firewall. If your session terminates due to inactivity, you can reconnect.

    If you find your connection is frequently terminated before 30 minutes of inactivity have elapsed, you may need to increase the VPN timeout period.

  • Your connection automatically terminates after 16 hours of continuous connection time. Even if your connection has been active during this 16 hour period, it will self-terminate. If this happens, you can reconnect.

  • You can have only one VPN session open at a time. If you try to open a second session, either from the same computer or from a different one, the second logon attempt will fail.

Last updated December 17, 2012 @ 3:33 pm

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