Disconnecting after 5 Minutes

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xordish

Posts: 1
Joined: Thu Nov 29, 2018 8:16 pm

Post by xordish » Thu Nov 29, 2018 8:20 pm
Hello,

we are using Viscosity for years now. On one device i have an issue that it disconnects on is own after 5 minutes.
It seems to make some kind of connection test or something, fails on it and then decides to disconnect the connect ( while it is actually working )

The initial connection works without issues. I obfuscated <PUBLIC_IP> which is he public ip of the VPN gateway. We are using OpenVPN - other clients / users have no issue.

The device is a desktop, connected over cable. Internet Connection is 100% stable.
Code: Select all
2018-11-29 10:04:24: /sbin/ifconfig utun1 10.246.246.6 10.246.246.6 netmask 255.255.255.0 mtu 1500 up
2018-11-29 10:04:24: Initialization Sequence Completed
2018-11-29 10:04:24: DNS mode set to Split
2018-11-29 10:04:24: State changed to Connected
2018-11-29 10:09:16: Testing address: <PUBLIC_IP> Route points into VPN network
2018-11-29 10:09:16: Route: 0.0.0.0/0.0.0.0 utun1
2018-11-29 10:09:16: Disconnecting connection as it is no longer reachable
2018-11-29 10:09:16: State changed to Disconnecting
2018-11-29 10:09:17: State changed to Disconnected
Do you have any idea? Thanks

James

User avatar
Posts: 1879
Joined: Thu Sep 04, 2008 9:27 pm

Post by James » Fri Nov 30, 2018 3:34 am
Hi xordish,

This error indicates that the external IP address of the VPN server is being routed into the VPN tunnel itself. This results in a non-functioning VPN connection. The reason for this seems to be as there is a 0.0.0.0/0 route for the VPN connection: if this is being set by the VPN connection itself it is *not* recommended. If a 0.0.0.0/0 route route is being manually set or pushed by the OpenVPN server it should be replaced with the "redirect-gateway def1" command. If you're already pushing "redirect-gateway", ensure it has the "def1" parameter.
2018-11-29 10:09:16: Testing address: <PUBLIC_IP> Route points into VPN network
2018-11-29 10:09:16: Route: 0.0.0.0/0.0.0.0 utun1
2018-11-29 10:09:16: Disconnecting connection as it is no longer reachable
As for why this is happening after around 5 minutes, my guess is that something else on the machine is triggering a network change. It's also possible the DHCP lease time on the local network could be set to a very low value.

Cheers,
James
James Bekkema
Viscosity Developer

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