ProtonVPN broke my machine after upgrade to Linux CLI version 3

Question

I'm using the ProtonVPN Linux CLI client Ubuntu 18.04.

I was previously using the 2.2.6 version, but I wanted to upgrade, which was a huge mistake.

I uninstalled v2.2.6 and followed the instructions for installing v3.7.1 on the ProtonVPN website.

After installation, I was able to create a connection, use the Internet, etc. Everything seemed to work. I enabled the killswitch permanently with $ protonvpn-cli ks --permanent.

Then, I closed my laptop lid. When I re-opened it, I had no Internet connection. I expected this, since that's how the 2.2.6 client worked, and I'm used to having to manually reconnect every time I open my laptop.

I attempted to reconnect to the VPN, but it didn't work the way I expected. $ protonvpn-cli r wouldn't find previous connection data, and $ protonvpn-cli c returned the error

Setting up ProtonVPN

An unknown error has occured.  Please ensure that you have internet connectivity.
If the issue persists, please contact support

My wifi connection was fine. If connectivity is the issue, then I assume it must be the killswitch. I disabled the killswitch with $ protonvpn-cli ks --off. My first question is, under v.2.2.6 I did not have to disable the killswitch in order to connect to ProtonVPN itself. Is this changed in v3.7.1?

With the killswitch disabled, $ protonvpn-cli r continues to not find previous connection data, but $ protonvpn-cli c at least makes an attempt at working. However, it's still broken. It takes a minute to load the list of countries. When I select "United States", it seems to freeze while loading the list of servers. I've tried several times, and I've reconnected my wifi. It just won't load servers.

My device now lacks internet connectivity entirely. I've turned off the killswitch, I've closed the terminal I was running protonvpn-cli in, and there are no protonvpn processes active on the machine. The wifi is fine, and other devices are using it to connect to the Internet perfectly well. I've even rebooted the laptop, but it still won't connect to the internet. ProtonVPN has completely wrecked it.

Please help me.

Answer 1

Although I don't think the problem still persists on your side I've struggled with similar problem today. For me the solution found here https://askubuntu.com/questions/1319033/internet-stops-working-after-installing-protonvpn solved all connectivity issues, by simply removing the pvpn-ipv6leak-protection as following:

sudo nmcli connection delete pvpn-ipv6leak-protection