Client local LAN connection drops after VPN connects

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JMB
Posts: 7
Joined: Tue Mar 28, 2017 11:23 pm

Client local LAN connection drops after VPN connects

Post by JMB » Sat Apr 08, 2017 4:30 pm

Hello All,

I'm able to establish a VPN connection to remote server, but after connection is established i'm unable to ping/view computers in the client local LAN network. If i disconnect the VPN i'm able to view the intranet computers again. Please advise. Thanks.

oscar.dc
Posts: 7
Joined: Fri Apr 07, 2017 10:05 am

Re: Client local LAN connection drops after VPN connects

Post by oscar.dc » Sat Apr 08, 2017 9:07 pm

you need to change interface metric into virtual adapter created by softether vpn client. I add link that can help you to change parameter. I change the default value 1 to 100 into virtual adapter.

https://www.cup.com/manual/win_softether.html

JMB
Posts: 7
Joined: Tue Mar 28, 2017 11:23 pm

Re: Client local LAN connection drops after VPN connects

Post by JMB » Mon Apr 10, 2017 5:04 pm

oscar.dc wrote:
> you need to change interface metric into virtual adapter created by
> softether vpn client. I add link that can help you to change parameter. I
> change the default value 1 to 100 into virtual adapter.
>
> https://www.cup.com/manual/win_softether.html

Hello oscar.dc, thank you for your recommendation. I changed metric from 1 to 100, and this time i can see the local LAN PCs. However, i'm unable to access the VPN remote PCs. If i change metric back to 1 then i'm able to access the VPN remote PCs but not the local LAN PCs. Any suggestions?

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: Client local LAN connection drops after VPN connects

Post by thisjun » Wed Apr 19, 2017 7:28 am

Remote and local IP segment collide.
Try change IP segment either side.

JMB
Posts: 7
Joined: Tue Mar 28, 2017 11:23 pm

Re: Client local LAN connection drops after VPN connects

Post by JMB » Thu Apr 20, 2017 3:11 pm

thisjun wrote:
> Remote and local IP segment collide.
> Try change IP segment either side.

Actually the remote IP segment and the local LAN IP segment are different e.g. 192.168.40.xx and 10.31.10.xx respectively. From the local LAN (VPN client) i'm able to surf the Web and all, but i cannot access the nodes in the network. If i want to access the PCs in the local LAN i have to disconnect from the VPN.

JMB
Posts: 7
Joined: Tue Mar 28, 2017 11:23 pm

Re: Client local LAN connection drops after VPN connects

Post by JMB » Wed May 03, 2017 6:25 pm

Just to update on this issue, i just noted that actually i can access the PCs in the same network my PC is when the VPN connection is established. What i cannot access is other computers that are in a different network segment when the VPN connection is on. To have access to PCs in a network segment other than mine i have to disconnect the VPN.

thisjun
Posts: 2458
Joined: Mon Feb 24, 2014 11:03 am

Re: Client local LAN connection drops after VPN connects

Post by thisjun » Thu May 18, 2017 6:43 am

Please add persistent entry to other segments on your office to the routing table.
https://www.howtogeek.com/howto/windows ... ing-table/

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