OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

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ik123
OpenVpn Newbie
Posts: 2
Joined: Thu Oct 17, 2019 4:40 pm

OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

Post by ik123 » Thu Oct 17, 2019 5:07 pm

Hi all,

Really odd issue here, the Windows client will connect perfectly to an OpenVPN server over WiFi when connected to a router (DrayTek, Virgin Media HUb, BT Hub.) but will not connect when connected over tethering to a OnePlus 6 or 6T on EE network (not tried other phones.).

The android client works fine.

Tested 2 OpenVPN servers with varying configurations.

A Linux machine with the OpenVPN client can connect over the WiFi from the same routers and the same phones hotspot that the Windows machine cannot.

Looking at the logs on the server the connection is not making it that far and the client is stuck on:

Code: Select all

UDP link local (bound): [AF_INENT][undef]:1194
UDP link remote: [AF_INET]XXX.XXX.XXX.XXX:1194
TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
TLS Error: TLS handshake failed
Seems to be a Windows issue with the OpenVPN client, has anyone seen this before or have any suggestions? Thanks!

TinCanTech
OpenVPN Protagonist
Posts: 11137
Joined: Fri Jun 03, 2016 1:17 pm

Re: OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

Post by TinCanTech » Thu Oct 17, 2019 5:12 pm

ik123 wrote:
Thu Oct 17, 2019 5:07 pm
Looking at the logs on the server the connection is not making it that far
Then that is the problem .. maybe your service provider is blocking you.

ik123
OpenVpn Newbie
Posts: 2
Joined: Thu Oct 17, 2019 4:40 pm

Re: OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

Post by ik123 » Thu Oct 17, 2019 6:36 pm

TinCanTech wrote:
Thu Oct 17, 2019 5:12 pm
ik123 wrote:
Thu Oct 17, 2019 5:07 pm
Looking at the logs on the server the connection is not making it that far
Then that is the problem .. maybe your service provider is blocking you.
This was our thought, however we have tried the same profile on a Linux laptop, connecting to the same phone via hotspot, and the linux laptop is able to connect to the VPN fine, while the Windows laptop cannot.

TinCanTech
OpenVPN Protagonist
Posts: 11137
Joined: Fri Jun 03, 2016 1:17 pm

Re: OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

Post by TinCanTech » Thu Oct 17, 2019 7:08 pm

Try with TCP ..

3DFace
OpenVpn Newbie
Posts: 1
Joined: Sun Dec 25, 2022 10:40 am

Re: OpenVPN GUI Windows works fine over WiFi to router, fails on hotspot

Post by 3DFace » Sun Dec 25, 2022 10:46 am

Hi! Did you find a solution?

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