VPN issues | T-Mobile Community (2024)

• J57little

• First activity
• 0 replies

• help

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+11

• drnewcomb

• Pillar
• 1402 replies
• 3 years ago 9 January 2021

Seems to be a recurring theme.

I don't speak for T-Mobile.

• alvarorb

• Rookie
• 3 replies
• 3 years ago11 January 2021

I’m having the same issue here.

Using my old internet connection, I have no issues. The moment I switch over to T-Mobile Home Internet, I can’t login to the VPN.

Any ideas?

• brad101102

• First activity
• 1 reply
• 3 years ago16 January 2021

• alvarorb

• Rookie
• 3 replies
• 3 years ago16 January 2021

+11

• formercanuck

• Adept
• 1178 replies
• 3 years ago16 January 2021

+1

• Reblog

• Helper Level 1
• 31 replies
• 3 years ago19 January 2021

If you have the new Nokia 5G gateway there are many corporate level VPN’s like PaloAlto Networks GlobalProtect that do NOT work. Many reports of this and hopefully T-Mobile responds quickly to fix. These same VPN’s DO work on the white Askey gateway and on the Franklin hotspot.

T-Mobile PLEASE, PLEASE, PLEASE address this as a priority and roll-out an update ASAP. Thank you.

• JohnL

• Rookie
• 3 replies
• 3 years ago26 January 2021

Tech support said they were all due to VPN set up issues asking to dual stack IPV4 and IPV6.

But why the existing set up works fine with the Specturm cabble not on T-Mobile 5G home internet?

The VPN set-up allows both IPV4 and IPV6.

I am not convinced the tech support’s assertion about dual stacking of IPV4/IPV6.

I am about to return it.

• RomanST

• First activity
• 2 replies
• 3 years ago29 January 2021

• Kivnul

• First activity
• 1 reply
• 3 years ago 4 February 2021

• RomanST

• First activity
• 2 replies
• 3 years ago 4 February 2021

• John_in_copley_Ohio

• First activity
• 1 reply
• 3 years ago 9 February 2021

I’m having the same issues with connecting to my wife’s company’s VPN. I thought I’d be able to get away from Spectrum, but T-Mobiledoesn’t like like a viable solution - despite significant efforts on my part to make it work.

About three weeks ago, I tried connecting to T-Mobile. Initial attempts in connecting to T-Mobile weren’t good – and I was only able to achieve download speeds of 15 mbps. I called their technical support and found they were having tower/equipment issues - and had been for about 3 weeks - with no anticipated date for repair. I put back the Spectrum service and told them I’d try it again when they had their equipment issues fixed.

ON 2/1, I re-installed the T-Mobile Gateway equipment - NOKIA 5G21 GATEWAY: T-MOBILE HOME INTERNET and connected T-Mobile Gateway via Cat 5 ethernet directly to my TP-Link Archer AX11000 wireless router. I did repeated internet bandwidth testing using Speedtest - both through my computer’s Chrome browser, and through the TP-link app - directly from the wireless router.I wasn’thaving any issues with any of my internet-based usage and needs - achieving download speed ranging on the low-end from 50Mbps to 110 Mbps.We can stream 4K programming to our TV’s, monitor outdoor 1080p security cameras, conduct video conferences, and all of the normal data applications and downloads.

Using a Cisco AnyConnect VPN is a WHOLE DIFFERENT STORY. It DOESN’T WORK with T-Mobile.As soon as I connect to the VPN, my internet speed/bandwdth is non-existent and I can’t access any of the company systems. Beginning on Friday, I spent two days troubleshooting the issue. In every case, I would have connection bandwidth speeds between50Mbps to 110 Mbps on all of my devices - including the computer I need to connect to the VPN. With my first attempt, I used Speedtest ontwo successive runs, with upload speeds were 15 and download speeds were 49 and 72. Next, Isuccessfully connected to the company VPN (IPsec) IPv4) , ran Speedtest, and received 10 down and 1 up, and then 6 down and 10 up. I simultaneously ran the TP-Link Speedtest app and received 86 down and 7 up. I disconnected from the company VPN, and recorded speeds of 70 Mbps.

Later on in the evening, we ran more comparative tests and theresults were even more disconcerting. The T-Mobile speeds in general were lower – averaging about 50 down and 8 up – as measured both on my wife’s computer through her Chrome browser using Speedtest prior to VPN connection and independently on my TP app also using Speedtest. However, once connected to the VPN, opening the Chrome browser and attempting to run Speedtest, I couldn’t even get the Speedtest to run – receiving “Download Test Error”.

The company’s IT Director took the computer home over the weekend to troubleshoot it in his home environment with Spectrum. He had noproblem connecting throughthe VPN, and recorded speeds in excess of 70Mbps.

This evening, I again attempted to connect to the VPN, and had the same results. After a 2 hour wait to get T-Mobile support, I had a nice support rep who simply took down my information, created a trouble ticket, and said someone will get back to my in 24 - 48 hours. After reading all of the other people who are having the same issues, and having no addressable solution, I placed an order for Spectrum to have my service restored.

• bscoder

• First activity
• 1 reply
• 3 years ago11 February 2021

Now ssh through the VPN on the LTE works like a champ.

• HLM

• First activity
• 2 replies
• 3 years ago22 February 2021

• Josh123

• First activity
• 2 replies
• 3 years ago23 February 2021

This is what support sent me. Sent it to my IT to see if Cisco Any connect supports this. My IT is not willing to enable IPv6 due to extra maintaince and security patching. No T-Mobile for me.

There are no known issues with VPNs and how they interact with the T-Mobile network to provide internet service. There may be an underlying factor (that can only be addressed by the owner of that VPN client) where there is a need to have ipv4 and ipv6 double stacked into the setup configuration to avoid any service issues. Please have the customer reach out to their VPN client support to check if this is indeed the configuration being used and to also further troubleshoot the VPN issue.Failed outbound VPN connection is caused by a known carrier grade NAT issue relating to T-Mobile’s implementation a fully IPv6 network and the implementation of 464XLAT, NAT64, and DNS64 for accessing IPv4 resources. The customer’s VPN or VPN server they are connecting to is not properly configured to work with an IPv6 network. This is a third party issue that T-Mobile cannot help with.Thanks for being best part of T-MobileBest Regards!

• ITGuy3323

• Rookie
• 7 replies
• 3 years ago25 February 2021

• Josh123

• First activity
• 2 replies
• 3 years ago25 February 2021

• ITGuy3323

• Rookie
• 7 replies
• 3 years ago25 February 2021

• ITGuy3323

• Rookie
• 7 replies
• 3 years ago25 February 2021

• jbmd

• First activity
• 1 reply
• 3 years ago27 February 2021

+11

• formercanuck

• Adept
• 1178 replies
• 3 years ago27 February 2021

• Wolfenstein3d

• First activity
• 1 reply
• 3 years ago28 February 2021

I too am having this issue with the Grey T-Mobile Gateway and GlobalProtect. I live out in the middle of nowhere so we don’t have any other real high speed options by any definition of the word. It is very unfortunate that when I finally sign up for a real high speed option, it doesn’t work with my company’s VPN. My company won’t change anything since I am 1 case in about 8000 employees so I hope there will be a fix soon from T-Mobile.

Honestly though, I can’t imagine their QA team did enough testing before releasing this product. They have to have known that people would intend to work on this network through a VPN.

+11

• formercanuck

• Adept
• 1178 replies
• 3 years ago28 February 2021

• Soules75

• Rookie
• 3 replies
• 3 years ago 2 March 2021

Same issue here. I had the white modem and things worked fine with GlobalProtect, but then I saw I could upgrade to the new gray cylinder modem, so I asked them to send it to me. It showed up yesterday and I hooked it all up. Speeds are amazing and a nice improvement over the white box, but unfortunately, while I can connect to the GlobalProtect VPN, none of the sites/platforms I am attempting to access will load. I called T Mobile and the rep said that it’s a known issue and that apparently there’s something our IT department can do at work to make it work. But I have serious doubts that our IT department will go through a whole lot of troubleshooting on this for one user.

The good news is, I still have the white box as I haven’t returned it yet. The T mobile rep said it should still work and that I have 30 days to return it. He said if my IT department can’t get the new one working with our VPN, I could call them back and get a return shipping label for the new modem and keep the old one. Thank god too, because we don’t have access to cable where I live. I would have had to have subscribed to Starlink. Which, I am interested in doing however not so interested in paying $600 up front plus twice as much per month for the actualservice compared to T-mobile’s.

• msyed

• Rookie
• 4 replies
• 3 years ago 3 March 2021

Looks like nobody here has been able to resolve this issue. Has anyone’sIT department been able to get this thing working?

I have the same issue with following configuration:

• Gateway Nok 5g21 Grey
• VPN Client: GlobalProtect by Palo Alto

My VPN is able to connect but connection to anywork related resources (websites, servers, etc) fail. While on VPN, things that do work though: I do get a decent speed using googles speed test, non-work websites, Microsoft teams.

Same VPN works perfect on cellular hotspot using T-mobile’s network.

If this doesn’t get resolved, I might cancel t-mobile home internet.

• Soules75

• Rookie
• 3 replies
• 3 years ago 3 March 2021

I’m about to make your day. You ready? There’s a solution! Check out this reddit post:https://www.reddit.com/r/tmobileisp/comments/lw75ul/0168_firmware_update_has_fixed_my_cisco/

This solution worked for me with GlobalProtect and has been working perfectly since. You’re welcome! :)

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