topic Re: Mobile 4G Broadband blocking access to VPN in Network

Mobile 4G Broadband blocking access to VPN

K3ZA84 — Thu, 05 Oct 2023 10:13:45 GMT

I have been using Three mobile broadband for over a year now, i never had problems connecting my laptop to the company i work for VPN server. Now i am unable to connect at all 😞 The IT support at work have investigated and said it is three boardband blocking it. How do i get around this without changing my broadband provider? I work from home on a full time basis so need to connect to a VPN

Re: Mobile 4G Broadband blocking access to VPN

Avondale — Fri, 06 Oct 2023 09:10:21 GMT

@K3ZA84

If you search this forum for VPN, you will find that it is a frequently asked question !

And there are some answers too - please let us know how you get on. .

Re: Mobile 4G Broadband blocking access to VPN

JonathanB — Mon, 09 Oct 2023 12:35:09 GMT

Hi @K3ZA84,

We don't block any VPNs to my knowledge, we totally appreciate how necessary they are for working from home these days.

Quite a few users have found the fix on thread has helped, as some VPNs and devices aren't connecting over IPv6.

Which VPN service/software do you use? What are you experiencing no connection at all, or an intermittent/frequent disconnection?

Thanks,
Jonathan

Re: Mobile 4G Broadband blocking access to VPN

DorsetColin — Mon, 30 Oct 2023 08:22:30 GMT

So about a month ago, overnight, I canoot access my VPN over any 3 network even though I've been using it for 6 months. Customer service is useless, they just keep telling me my internet is working properly. No one hears, or listens to what I'm saying let alone tries to help.

I have three different 3 internet connections. 2 home broadband, one for me, one for the kids. My mobile is on unlimited data on the 3 network. Overnight, for no reason, I can no longer access my works VPN throuh ANY 3 network connection regardles of where I am in the country. My works VPN is working and up to date in every aspect.

Guess what? Use GiffGaff or ANY other internet provider and it works perfectly, first time, every time. 3 network, on multiple 3 connections, has completely blocked my works VPN and NO ONE is trying to help.

For over a decade of being with 3, it's time to move on.

Re: Mobile 4G Broadband blocking access to VPN

DorsetColin — Mon, 30 Oct 2023 08:24:09 GMT

And no, the atricle everyone keeps talking about with APN etc DOES NOT HELP.

Re: Mobile 4G Broadband blocking access to VPN

JonathanB — Tue, 31 Oct 2023 17:20:49 GMT

HI @DorsetColin,

Which VPN provider are you having issues connecting to?

Thanks,
Jonathan

Re: Mobile 4G Broadband blocking access to VPN

DorsetColin — Thu, 30 Nov 2023 10:39:43 GMT

My workplace VPN. No it is not their issue, they are up to date and it works perfectly everywhere else, for everyone else as long as they don't use 3. Now let me explain this just ONE MORE TIME so maybe, just maybe, someone at 3 might actually f****** listen.

About 2 months ago, overnight for no reason, my workplace VPN stopped being able to connect through ANY 3 network, overnight. Literally, ANY 3 network, overnight.

1. It will not connect through my 3 home broadband.
2. It will not connect through my partner's 3 home broadband.
3. It will not connect through my 3 network mobile hotspaot.
ALL of these are unlimited data and ALL used to allow VPN connection.
4. ANY OTHER NETWORK WORKS PERFECTLY AND I CAN CONNECT TO MY WORKPLACE VPN.
Giffgaff? Works perfectly.
My neighbours fibre broadband wifi? (Thanks for sharing) Works perfectly.
My workplace public wifi network? (yes, VPN through their public hotspot) Works perfectly.
Any bar/pub/cafe wifi? Works perfectly.
ANY 3 CONNECTION? DOES NOT CONNECT.

I've lost track of the number of times I've had to explain this to some d****ss on the end of a phone who just goes through the "we'll test your line" crap and then tells me there's nothing wrong with my line. It's not my line, IT'S THREE'S ENTIRE NETWORK.

Oh, and the real p***er? This all started just at the same time 3 started pushing Business Broadband services. What an effin surprise.

Yes, I'm irate. Yes I'm shouting. Yes I'm changing my provider as soon as I possibly can.

Re: Mobile 4G Broadband blocking access to VPN

RobinB — Thu, 15 Feb 2024 07:49:54 GMT

I have the same problem on all 3 devices I have tried on the three network. Presumably the lack of response to DorsetColin means that Three agree the only option is to change provider?

Re: Mobile 4G Broadband blocking access to VPN

whitters1977 — Thu, 15 Feb 2024 23:25:06 GMT

I am having exactly the same issue. Suddenly overnight two days ago I am unable to connect to my work VPN from both my three devices (5g router and mobile hotspot) Strange its happened just outside my cooling off period. just to eliminate any issues on my work Infrastructure I asked my neighbour if I could jump on their sky broadband to check. Guess what I connected just fine. I have rebooted everything a few times. to no avail. This is definitely a 3 issue and I will be raising complaint as the whole reason I use their devices is for work. I work on the Infrastructure team in my company so I know for a fact it is not an issue on our side. I will probably hit a brick wall with Three's customer service after reading the poor responses on various threads on here

Re: Mobile 4G Broadband blocking access to VPN

DorsetColin — Fri, 16 Feb 2024 12:18:38 GMT

I gave up. I have fibre now instead. More cost but better service.

Re: Mobile 4G Broadband blocking access to VPN

andrewbrisland — Fri, 16 Feb 2024 20:15:46 GMT

this has happened to me today around noon, before that I was perfectly fine then BANG cut off, I spent 2 to 3 hours with our tech support who finally had the idea - can you try your mobile hotspot , and of course as soon as I switched to my EE phone it connected

What on earth is going on !!!

Re: Mobile 4G Broadband blocking access to VPN

whitters1977 — Sat, 17 Feb 2024 11:47:52 GMT

Yep I doubt they will admit it but the changes they are making are definitely causing this issue. Both my hotspot and 5G router stopped working at exactly the same time after 3’s updates and network outages. I work on the Infrastructure team and can categorically say it’s a 3 issue. Awaiting a response from them

Re: Mobile 4G Broadband blocking access to VPN

andrewbrisland — Sun, 18 Feb 2024 22:31:15 GMT

What is the effect of switching ipv6 off and forcing it to use ipv4, I did not do the changes to the domain name as some people have done !!! this has actually cost me a weekend of on call overtime as I could not guarantee stability !!! and of course if I reset the hub I have to make the changes again, I never had any problems using a SKY Broadband Router for the last few years but now that I have moved out of that home, I needed a new package and the Three offer seemed too good to be true

Re: Mobile 4G Broadband blocking access to VPN

DorsetColin — Mon, 19 Feb 2024 08:02:55 GMT

Made absolutely no difference to me at all. For me, this service had been excellent. The ONLY reason I left is because they suddeny blocked my VPN and I can't get it back/they won't admit they did anything.

Re: Mobile 4G Broadband blocking access to VPN

andrewbrisland — Tue, 20 Feb 2024 11:37:39 GMT

I had a few days away from Three and came back home today and it is stable at the moment , my changes must still be active. I guess I will persevere and at least i know this community exists 😁

Re: Mobile 4G Broadband blocking access to VPN

obii01 — Mon, 15 Apr 2024 20:55:10 GMT

Has anyone had a solution to this VPN issue?

Re: Mobile 4G Broadband blocking access to VPN

JonathanB — Tue, 16 Apr 2024 10:06:43 GMT

Hi @obii01,

Have you seen this thread:

You may find that setting a manual APN profile for the 3internet APN, and setting this to IPv4 only solves this VPN connection problem.

Let me know if that sorts it or not. If not, can you let me know a bit more about what you're experiencing? Which VPN service are we talking about, and what's the issue you're experiencing. For example, are you unable to connect at all, is the connection unstable, or does it intermittently disconnect?

Thanks,
Jonathan

Re: Mobile 4G Broadband blocking access to VPN

beep — Fri, 14 Jun 2024 01:26:59 GMT

Have you tried changing your Mobile Data APN name to ‘3internet’? found the tip on a reddit thread & worked like a charm as I was struggling to connect NordVPN

Re: Mobile 4G Broadband blocking access to VPN

Greengoddess — Sat, 17 Aug 2024 12:33:25 GMT

I agree. Having same issue, been with three for years but won't be renewing. Unfortunately I have to wait another 18 months!!

Re: Mobile 4G Broadband blocking access to VPN

Greengoddess — Sat, 17 Aug 2024 12:38:03 GMT

Having the same issue but I don't know how to make the changes suggested (ipv4 etc???). Staff in 3 shop today told me three routers don't work with vpn's!