Fail to connect to VPN

[Jason Gorrion]

Currently encountering an issue in connecting to the VPN. Log is returning a `

022-02-08 14:21:17.815594 write UDP: Broken pipe (code=32)`. Saw a thread stating the this was an issue with the firewall install by the IT company. What can I possibly explain to my IT guys that will tell them that it was an issue with the company firewall.

I have attached my Diagnostic for reference.

[Tunnelblick developer]

Usually, a "broken pipe" means that the OpenVPN server, or a router or other network intermediary, has "reset" the connection.If a corporate firewall or other device between your computer and the OpenVPN server is not allowing UDP traffic, that could be the cause.

However, the following message from OpenVPN:

     2022-02-08 14:19:15.304483 WARNING: normally if you use --mssfix and/or --fragment, you should also set --tun-mtu 1500 (currently it is 1360)

indicates there is a problem with your OpenVPN configuration. But you don't seem to be using --mssfix or --fragment, so it may actually indicate a problem with OpenVPN. You should consult sources of help for OpenVPN; you can find some links on our Support page.

If your VPN worked with your prior version of Tunnelblick (3.8.6a), the problem may be with the newer version of OpenVPN included in Tunnelblick 3.8.7a. Tunnelblick 3.8.6a included OpenVPN 2.5.3; Tunnelblick 3.8.7a includes OpenVPN 2.5.4. Re-install 3.8.6a, which you can download from Deprecated Downloads, and see if that solves the problem.

[Jason Gorrion]

Thank you for your response. In the case it is the corporate firewall causing the issue, what possible way they could determine that it's the corporate firewall causing the issue? Asking this so I could ask tell our IT team.

By the way, I've tried using lower version and issue still exists.

[Tunnelblick developer]

Sorry, but your IT department is going to have to figure that out themselves by examining their logs.