"connection failed due to unknown reason."

[shmoobalizer]

simply trying to connect to a server either manually or via protonvpn-cli c -f results in a failure:

Setting up ProtonVPN.
Connecting to ProtonVPN on US-FREE#2 with UDP.

Unable to connect to ProtonVPN: ProtonVPN connection failed due to unknown reason.

Environment: OS: Arch Linux x86_64 DE: Xfce 4.16

[calexandru2018]

Hey @shmoobalizer

sudo journalctl -eu NetworkManager

Please type this command into the terminal and find the line where NM is "complaining". My suspicion is that it's something similar to “failed to request vpn secrets: No agents were available”, but I might be wrong.

[tquin]

Hi @calexandru2018, I'm seeing similar issues on an Arch machine. Ran a simple protonvpn-cli c -f without root, and it looks like it's failing to create/find the tun module and device file:

...
NetworkManager[676]: <info>  [1623460950.6133] vpn-connection[0x556c51094340,47d042a5-XXX,"ProtonVPN AU#40",0]: Started the VPN service, PID 43771
NetworkManager[43772]: modprobe: FATAL: Module tun not found in directory /lib/modules/5.12.4-arch1-2
...
nm-openvpn[43776]: [lxc-au-09.protonvpn.com] Peer Connection Initiated with [AF_INET]116.206.231.186:443
nm-openvpn[43776]: NOTE: setsockopt TCP_NODELAY=1 failed
nm-openvpn[43776]: ERROR: Cannot open TUN/TAP dev /dev/net/tun: No such device (errno=19)
nm-openvpn[43776]: Exiting due to fatal error

Edit: apologies, this was my own fault. I think I'd updated the kernel without rebooting yet, so the module had been unloaded. After a reboot, the CLI, GUI app, and openvpn configuration file all connect properly.

[ghost]

Happening on ubuntu 20.04 too. Don't know why.

[nivaca]

Same here with Manjaro: Operating System: Manjaro Linux KDE Plasma Version: 5.21.5 KDE Frameworks Version: 5.82.0 Qt Version: 5.15.2 Kernel Version: 5.12.11-zen1-1-zen OS Type: 64-bit Graphics Platform: X11 Processors: 8 × Intel® Core™ i7-8550U CPU @ 1.80GHz Memory: 15,4 GiB of RAM Graphics Processor: Mesa Intel® UHD Graphics 620

However, I do not get any errors when inspecting with sudo journalctl -eu NetworkManager.

[calexandru2018]

Hey all,

With the recent stable release there was a small issue that prevented users from connecting. This has now been solved with the latest release of the library (at time of writing this) 3.3.1. Please update with your package managers.

[nivaca]

Thanks, @calexandru2018. That fixed the issue. However, the pvpn-ipv6leak-protection connection never gets connected. Should I file a new issue?

[Arcadio-Buendia]

OS: Debian Sid ProtonVPN CLI v3.7.1 (protonvpn-nm-lib v3.3.1; proton-client v0.5.1) gnome-keyring: 3.36.0 Desktop Manager: Sway

I ran ProtonVPN with the command: protonvpn-cli c -f and it got stuck at Connecting to ProtonVPN on JP-FREE#2 with UDP.

The error shown by network manager is:

NetworkManager[898]: <error> [1624688896.6587] vpn-connection[0x55bb11a862c0,30c830f7-d922-4db3-9284-1ca8e43be37e,"ProtonVPN JP-FREE#2",0]: Failed to request VPN secrets #3: No agents were available for this request.

Which you mentioned earlier. Can anything be done by the user?

ProtonVPN Logs give:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/protonvpn_nm_lib/core/connection_backend/nm_client/nm_client_mixin.py", line 117, in __dynamic_callback
    (callback_type_dict[callback_type]["finish_function"])(result)
TypeError: NM.Client.activate_connection_finish() takes exactly 2 arguments (1 given)

Finally, pvpn-ipv6leak-protection gets connected, and I lose my internet connection.

[mingchen]

The latest release 3.8.0 still have Exception: NM.Client.activate_connection_finish() takes exactly 2 arguments (1 given) issue.

$ protonvpn-cli -v

ProtonVPN CLI v3.8.0 (protonvpn-nm-lib v3.3.2; proton-client v0.5.1)

$ protonvpn-cli c -r -p tcp
Connecting to ProtonVPN on US-FREE#1 with TCP.

Unable to connect to ProtonVPN: ProtonVPN connection failed due to unknown reason.

$ tail ~/.cache/protonvpn/logs/protonvpn.log 
nm_client.py — INFO — connect:89 — Starting VPN connection
nm_client.py — INFO — __get_protonvpn_connection:173 — Getting VPN from "NetworkManagerConnectionTypeEnum.ALL" connections
nm_client.py — INFO — __get_protonvpn_connection:209 — VPN connection: <NM.RemoteConnection object at 0x7fa96099ef78 (NMRemoteConnection at 0x29e9320)>
nm_client_mixin.py — INFO — _start_connection_async:29 — Starting VPN connection
nm_client_mixin.py — INFO — __dynamic_callback:90 — Callback type: "start"
nm_client_mixin.py — ERROR — __dynamic_callback:124 — Exception: NM.Client.activate_connection_finish() takes exactly 2 arguments (1 given)
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/protonvpn_nm_lib/core/connection_backend/nm_client/nm_client_mixin.py", line 117, in __dynamic_callback
    (callback_type_dict[callback_type]["finish_function"])(result)
TypeError: NM.Client.activate_connection_finish() takes exactly 2 arguments (1 given)
monitor_vpn_connection_start.py — INFO — vpn_signal_handler:131 — /org/freedesktop/NetworkManager/ActiveConnection/99 is not an active connection.