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Identifying and troubleshooting VPN session timeout bug

Troubleshooting VPN session timeout and lockout issues should focus outset on isolating where the root of the problem lies -- exist it the internet connection, the VPN vendor or the user device.

When troubleshooting a VPN timeout upshot, it is important to remember that the root of the problem could be the VPN vendor, the user's cyberspace connection, or the user's device and software, and so isolating the issue first is critical.

Potential VPN timeout bug include the following:

• The internet connection is spotty.
• The internet connection at a certain location blocks VPN admission.
• The VPN server stops responding.
• The VPN provider'due south DNS server stops responding.
• The user's firewall or router settings could block VPN access.
• The user's VPN software needs to be updated.
• The VPN rekey process is declining.

Steps to troubleshooting VPN timeout causes

When troubleshooting VPN session timeout or lockout issues, information technology'southward critical to isolate the trouble to ensure faster and easier remediation.

Step i. Assess the user

First, determine the user's location. If users are allowed to connect to the VPN from anywhere except a specific location, such as their local coffee shop, information technology could exist that the internet connexion at that location is blocking VPN admission.

Another way to decide the root cause of the VPN event is to inquire the user to connect to the VPN using a wired connexion. The majority of users connect via wireless LAN (WLAN) or Wi-Fi, and although it is becoming rarer for VPN software to lose connection due to poor Wi-Fi signal strength, it is a potential cause. If the user tin can connect via the wired LAN without whatsoever issues merely has an issue periodically with the Wi-Fi or WLAN, outset troubleshooting the agent logs and the origin of the logon attempts with an eye toward wireless-related problems.

Step 2. Assess the vendor

If the user's net connection isn't the event, the side by side footstep is to ensure the VPN vendor isn't the root of the problem. This ways checking that the VPN server being used is responding properly and that the DNS server used by the VPN vendor doesn't have any problems. If the vendor ends up beingness the cause, it might be time to modify the VPN server or DNS server.

Step three. Assess the device

Once exterior causes have been ruled out, it's fourth dimension to check the settings and software for the remote user. One of the first settings to check is the VPN timeout setting itself. Past default, VPN software might shut downward a connection that has been idle for as trivial as 10 minutes, which might be likewise short for many users. These values should be set to fit the needs of the company and its stop users. This is especially true with the use of SSL VPNs.

VPN timeout issues could likewise potentially arise from out-of-appointment software, and then security admins must ensure the VPN software on the user device is updated properly.

Consideration should be made to users' firewall settings on their device or router, also every bit router settings. What might appear to exist a VPN timeout issue could actually be security software shutting downwardly the connexion inappropriately.

When using an IPsec VPN, verify the connectedness settings of phase ane and phase 2 rekey policies. The stage 1 policy volition be able to go down without an event and rekey, merely if phase 1 and stage 2 timers go downward at the same fourth dimension, there'due south the potential for a timeout or longer fourth dimension to connect.

This was last published in June 2020

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Source: https://www.techtarget.com/searchsecurity/answer/VPN-troubleshooting-Isolating-VPN-session-timeout-issues

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