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How to fix OpenVPN request error "address is not IPv4"?

Posted: Sat Jul 22, 2023 11:00 am
by vladzhegest
After trying to fix network settings for reach localhost from Windows in WSL 2, my OpenVPN client stopped working. I did only port forwarding and Firewall rules by netsh and NetFireWallRule commands. From another device I still can connect. Here my openVPN logs:
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For "TAP_Windows Adapter" I use "Obtain IP/DNS address/server automatically" for IPv4 and IPv6. Thanks!

I already tried reset network, reset everything by netsh and NetFireWallRule. I also did "Reset PC" without saving any data. And I still getting this error.

Re: How to fix OpenVPN request error "address is not IPv4"?

Posted: Thu Jul 27, 2023 2:47 pm
by JosephS
Hi vladzhegest,

This is a known issue with the latest connect client on Windows, that is being investigated atm.

You can follow this guide to make Windows priritize IPv4 traffic over IPv6:
https://kb.firedaemon.com/support/solut ... -10-and-11

Or you can downgrade to a previous connect client version, where this issue isn't present:

https://swupdate.openvpn.net/beta-downl ... signed.msi

Hope this helps.