Thanks for the replys.

Ive tried a few things but I prefer wireguard but the app I'm using doesn't allow any modifications to the wireguard setup like MTU change.

No problem for me either Surfshark over Smarty (Part of the Three network)

Wow 2 years old post but worked.

I’ve been having major issues using VPN and Voip apps like Horizon, basically SIP soft phones.

Changed the APN to 3internet and everything is working.

Would like to know what the technical differences are between the APN’s though

Cheerw
Shaun

3internet APN gives you your own public IP address.
three.co.uk puts you behind carrier grade NAT so it may be that causing the previous issues.

Thanks
Dan

No. I have home broadband and I am using a VPN daily. No problems

Posting this via 3 and a VPN. No problems.

In reply to a post by Username26:

No. I have home broadband and I am using a VPN daily. No problems

There are lots of different technical ways VPNs can be implemented. Most consumer VPNs use either OpenVPN or Wireguard, but many corporate VPNs may use HTTPS, or IPsec.

I use IPsec for my business and Stealth for home - again no problems

I had a similar problem.

Changed APN to 3internet, but VPN still blocked.

I solved the problem by removing web browsing restrictions which seem to be on new account by default.

To do this dial 0333 338 1001 ...Option 1 [Enter mobile number when prompted] then it is option 5 then option 3 .... you will need credit card to verify t hat you are over 18

premitel.uk

The menu has changed. It's now 4, 5, 5, 4.