VPN connection NOT working on 4G (works on Wifi)

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Kipperkahn
Posts: 1
Joined: Mon Apr 03, 2017 4:12 pm

VPN connection NOT working on 4G (works on Wifi)

Post by Kipperkahn » Mon Apr 03, 2017 4:24 pm

I have a Panasonic toughbook with a cellular Sim installed.
VNP server is up and running, i can connect to it from remote computers fine.

When using the Cellular network connection on the toughbook i cannot connect to the VPN server. I have a internet connection and browse fine, just cant connect to the VPN server.

If i use the WiFi adaptor on the toughbook and connect to a wireless network i am able to connect fine to the VPN server.

It is not a provider issue as i have tried a Telus and Bell Sim in the toughbook.

Anyone have any ideas.

triwaves
Posts: 27
Joined: Mon May 16, 2016 3:11 pm

Re: VPN connection NOT working on 4G (works on Wifi)

Post by triwaves » Mon Apr 03, 2017 7:04 pm

Kipperkahn wrote:

> It is not a provider issue as i have tried a Telus and Bell Sim in the
> toughbook.
>
> Anyone have any ideas.

Actually it may be a provider issue - common to many cellular providers - and that is that they NAT your cellular modem on a private (non-routable) network. So you may browse network no problem , but trying to reach back to a private network address is challenging and you can't forward ports easily (or at all)

I have been playing with this and using SecureNAT works on a Verizon router I have, but the only way I can connect to the Server behind a Verizon cell connection is using the Windows Softether client. This works pretty well, but because of the private IP I am not able to make Android OpenVPN client or built in Windows client work.

Any other ideas from anybody else? I would love to get better functionality for this cellular case also :)

Thanks

thisjun
Posts: 2508
Joined: Mon Feb 24, 2014 11:03 am

Re: VPN connection NOT working on 4G (works on Wifi)

Post by thisjun » Thu Apr 13, 2017 5:35 am

Does the VPN server run on the toughbook?

hlava2005
Posts: 1
Joined: Fri Jan 05, 2018 8:35 am

Re: VPN connection NOT working on 4G (works on Wifi)

Post by hlava2005 » Fri Jan 05, 2018 8:40 am

Hi!

I am having the same issue, it came after the newest windows update. It was solved by rolling back to a previous version (pre 1709) and postponing updates for now. Maybe it has something to do with IP v6.

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