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Definitive list of Three APNs, and problems with VPN on Three (with Scancom)

Steve1980

Regular Member
Does anyone have a list of these? Long story short, I've just switched from Smarty to my new Scancom 500GB Three SIM. It was working fine for about six hours, but now I can no longer get a decent VPN connection. (The connection is just as good as ever without a VPN.) I'm trying to play around with the APN to fix this and I've found mention of "three.co.uk" and "3internet". Are they correct and are there any others?

Are there any known gotchas with using a VPN over Three? I was hoping it would be plain sailing given I never had any VPN issues with Smarty.

It sounds stupid, but the problems started round about midnight. Is it somehow possible that despite swapping the SIMs over and restarting the router the old Smarty settings or network connection persisted until something reset at midnight?

(I don't *think* it's my VPN provider having an outage, I did try multiple servers, but obviously I can't rule that out completely.)
 
those two are correct yes, the only difference is "3Internet" has no CGNAT. I think there was another one but I forgot it, something like "secure" but that's not it i guess. Re: VPN over Three, it's just like any other data connection for me, i've never had something that didn't work on three. Nor did I notice any difference between a three SIM straight from three vs one from scancom. I just go with whatever is cheapest. I use wireguard to my own VPS. I use openmptcprouter which uses various VPN methods (openvpn, shadowsocks, wireguard) and all of them work with it. Smarty has a totally diferent APN if i remember correctly. So I don't think using Smarty's APN would have worked at all.

Who is your VPN provider? I've got nordvpn and it's working fine. Can you change the protocol being used (e.g. from wireguard to openvpn?)
 
Thanks! This is with Mullvad. I haven't tried OpenVPN yet but I might if the problem persists, although the way I have things set up would make this a bit awkward.

The symptoms seem to be that the VPN upload speed is very poor and/or the latency is bad and depending on exactly what I am trying to do these interact and make the connection unusable. (I don't appear to be getting any packet loss, though.) I will sleep on it and with any luck it will all magically work in the morning...
 
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Does anyone have a list of these? Long story short, I've just switched from Smarty to my new Scancom 500GB Three SIM. It was working fine for about six hours, but now I can no longer get a decent VPN connection. (The connection is just as good as ever without a VPN.) I'm trying to play around with the APN to fix this and I've found mention of "three.co.uk" and "3internet". Are they correct and are there any others?

Are there any known gotchas with using a VPN over Three? I was hoping it would be plain sailing given I never had any VPN issues with Smarty.

It sounds stupid, but the problems started round about midnight. Is it somehow possible that despite swapping the SIMs over and restarting the router the old Smarty settings or network connection persisted until something reset at midnight?

(I don't *think* it's my VPN provider having an outage, I did try multiple servers, but obviously I can't rule that out completely.)
Could be MTU related. With Three it is either 1380 or 1500. If you cannot get the actual value from your equipment, you will need to discover it from your PC, there are many instructions available on the internet. Once the current value is found you may need to adjust your router and/or VPN client configuration.
 
I really have no idea what happened. It seems to be working absolutely fine now. I've even been able to switch to the 3internet APN (choosing "IPv4" for the PDP setting, FWIW) and get an inbound connection from a machine out on the net, and I'm not being speed capped either (480 down, 54 up).

Thanks Mr.Green - it could well have been MTU related but if it is I didn't do anything to fix it, and I don't *think* I did anything to break it last night either.

I can't help wondering if it's going to break in the small hours again but for now it's fine and I can't do much but keep my fingers crossed. I am tentatively inclined to point the finger at my VPN provider but I did try two different servers and it didn't make a difference, so maybe I somehow unknowingly did something wrong here. I don't really know, but at least it's working for now.

Does anyone know how long it takes Scancom to turn off adult content blocking? I sent a message via their contact form yesterday evening but I haven't heard back yet and still can't get on to urbandictionary.com. Not that I'm desperate, and I could go via my VPN, but it would be good to get this sorted - there's bound to be some site I do care about which is deemed "adult" but won't accept logins from a VPN.
 
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