No Internet with WinTUN

[RainmakerRaw]

Please answer the following questions for yourself before submitting an issue.

• [X] I am running the latest version
• [X] I checked the documentation and found no answer
• [X] I checked to make sure that this issue has not already been filed

AdGuard VPN version

2.2.1 (1233)

Operating mode

VPN

Environment

- OS: Windows 11, 23H2, build 22631.3007
- Other network-level software: HyperV virtual switch (if that counts)

Issue Details

Steps to reproduce:

1. Install AdGuard VPN using the binary from the website.
2. Enable WinTUN (no other tweaks).
3. Connect to a server.
4. No Internet.
5. App occasionaly says network not found, or else crashes (unhandled exception).
6. Disable WinTUN, reconnect. Internet now works again.

Expected Behavior

The Internet should be accessible via the VPN as in the 'regular' mode.

Actual Behavior

No Internet. The Windows connection icon turns to a globe, all apps say offline. The WinTUN adapter properties shows a 172. local IP address and a DNS server, but no default gateway (not sure if expected behaviour or not). I have tried with QUIC enabled and disabled, with custom DoT for DNS, and a complete removal (Geek Uninstaller) of the app and a reboot, then a reinstall. Same issue.

Screenshots

Additional Information

adg_logs_2.2.1233.0_0122_0446.zip

[KolbasovAnton]

@RainmakerRaw Greetings! Please, try one of this actions:

• Choose another DNS server: Settings -> App Settings -> DNS Servers.
• Switch off HyperV virtual switch, that You've mentioned.
• Or simply download and install the latest nightly version of AG VPN.

Please, let me know, if any of this helps. Also, at what time approximately the error occurs? We must know it to investigate the logs You sent.