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Overview
Troubleshoot VPN client settings.
DNS
DNS and Routing
First you will want to verify you are connected to the VPN. When you connect to the VPN, you will see a little globe with a lock and when you hover over it, it will show connected
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If you are still having trouble you can check the dns settings on your interface.
Network DNS settings
From the start menu, search for “Network status” which will bring you to this page.
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If they are not, you can manually set this address now. (when you are not connect to the VPN, you may want to make sure this is set to Obtain DNS server automatically)
System Software
If all of these steps fail, you will need to look at the different software packages installed on your machine. You may have a piece of software that is causing troubles. Other VPN’s, Antivirus software, Anti Malware software, or DNS redirectors will all cause issues with the VPN. Please disable as many peoples of add on software as you can to start narrowing down what could be causing the connection issue. If you are still having trouble, please reach out to us at research computing or join us in office hours so we can do some additional troubleshooting.
Systems with Docker installed
If you are using the cisco VPN, dockers default IP addresses will overlap and cause this issue, you must change the default networks for docker on the system otherwise the cisco VPN routes will not work correctly. You need to create a file “/etc/docker/daemon.json”
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You may also need to run
“docker network prune”
MacOS systems
If you have to uninstall Cisco VPN, need to use the command line to remove it with the uninstall tool.
Cisco Anyconnect Manual uninstall Mac OS - Community Contributions - Hermes
Additional troubleshooting for visiting student accounts
Make sure they are subscribed to the service by going to selfsub.asu.edu and ensuring that Secured network access (Cisco/Perfigo) is active. They may need to subscribe to the service at the bottom of the page.
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Another student found success deleting and then re-installing the DUO app
How to fix WSL2 and Cisco AnyConnect VPN internet issue
The problem
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Err:1 http://archive.ubuntu.com/ubuntu focal InRelease Temporary failure resolving 'archive.ubuntu.com' Err:2 http://security.ubuntu.com/ubuntu focal-security InRelease Temporary failure resolving 'security.ubuntu.com' Err:3 http://archive.ubuntu.com/ubuntu focal-updates InRelease Temporary failure resolving 'archive.ubuntu.com' Err:4 http://archive.ubuntu.com/ubuntu focal-backports InRelease Temporary failure resolving 'archive.ubuntu.com' Reading package lists... Done W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-updates/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal-backports/InRelease Temporary failure resolving 'archive.ubuntu.com' W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/focal-security/InRelease Temporary failure resolving 'security.ubuntu.com' W: Some index files failed to download. They have been ignored, or old ones used instead. |
On wsl2 sudo apt update will fail when connected to Cisco Anyconnect VPN but without vpn it works fine. The problem is when you are connected to anyconnect, wsl fails to resolve the DNS.
The solution
Connect Cisco Anyconnect VPN, then open up powershell as Admin and run the following commands to get the all the available DNS/nameservers. Take note of the DNS/namservers will need later.
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Restart-Service LxssManager |
References
WSL2 , problem with network connection when VPN used (PulseSecure) · Issue #5068 · microsoft/WSL wsl 2 ubuntu 18.04 unable to connect to IP resources with Cisco Annyconnect active · Issue #4277 · microsoft/WSL
Using an alternate client
Openconnect on Ubuntu23
Step #1: Open the terminal and enter the following command to install the OpenConnect network manager:
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Step #8: Enter your ASURITE in the Username box, put your ASURITE password in the first password box, and then the second password box would be your DUO method, for example. “push” for a push notification to your device. Once these have been entered, click on “Login”.
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Openconnect on MacOS
Step #1 - Install Homebrew
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