Three 5G internet blocks Pulse SEcure (ivanti) VPN disconnects

[Three5GVPN]

I saw some other posts of this topic with NO solution, and yes, another Three 5G user suffering the same problem with VPN, with Pulse Secure.

Let me explain:

I got a really good 5G signal, no issues, but when connected to the VPN Pulse Secure (required for work) the connection drops every 3 minutes. Yes, exactly 180 seconds. That makes work remotely impossible...

Company IT team has been looking into it unsuccessfully.  Finally we tested the same Laptop and the same VPN Pulse secure doing hotspot from another 5G internet provider and it worked fine. 

So the problem is only with Three 5G.

I have also contacted with Pulse Secure support team. They have investigated and concluded that is the Internet provider blocking the connection every 3 minutes. 

All this makes me feel switching provider...

I found this link, more people having very similar cases.:

https://community.pulsesecure.net/t5/Pulse-Connect-Secure/Connecting-via-hotspot-or-5G-modem-Three-Z...

I got external technical support guy suggesting me that there is nothing to do on the router Setup, since this is the Provider (Three) network affecting negatively to the VPN.  I have tried the 5G broadband sim card in a  phone and same issue.  But on the same phone, doing hotspot with another sim card then it works perfectly. The issue is only with Three network.  Already done so many checks that this is a fact: Three UK is blocking Pulse Secure VPN.  this makes impossible to work from home. Therefore Three 5G broadband useless and unless there is a solution I will need to switch provider.

[Jubzzz]

I have given up and cancelled my contract.

[Federico]

Hello! 

Do you have any update/news about the Ivanti issue? I am facing the same connection problem.

[amin]

Hello,

For me, when I use a different broadband providor, or hotspot from my phone, the issue disappears.

When i connect using three netwrok, the issue appears agian. It looks like purely three issue,

[Markensite]

Hi Folks, a little bit of an update from me.

Although I was able to get a 'good enough' SSL connection by disrupting port 4500 as I posted previously, I still persevered with trying to find a solution with my company's IT dept ...

In a joint effort with my company's IT dept and Ivanti's 'Project Team', some network 'sniffing' software (Wireshark) was installed on my machine and some detailed logs were captured. Additionally, extra logs were captured from my company's network and it was all sent to Ivanti for them to analyse...

Ivanti checked the logs out and decided that, according to them, it was definitely not their fault - some key quotes from their analysis:
"From the logs, based on the time stamp shared seeing a web-based connection closure at the user's end and then we see the data channel (on the client connection) is getting closed"
"web server closed data channel"
"So this is purely an issue at the user's end and there is nothing to do with the server connection"

I don't really understand this but apparently, it means that it is Three's fault (according to Ivanti). To me, it seems like it's the combination of Three & Ivanti that's the problem - so I doubt it's entirely the fault of Three or entirely Ivanti's fault. Maybe somebody will read this and it will give them a clue as to what the issue is.

[tkendall]

Just want to add to this thread that I am suffering the same issue. We have the 5g broadband, Zyxel NR5103E hub. Wife uses Ivanti Secure VPN and as per other users in this thread gets disconnected after 3 minutes, no fallback to SSL from the ESP connection.

Have been in touch with three who 'changed some frequencies' on the router but this did not solve the problem. I have tried the changing to IPV4 and the three.co.uk vs 3internet as per other threads. If the problem is not solved we will have to move provider.

Any updates on options/testing/solutions?

[amin]

Hello,

Any updates on this thread please ? It's so annoying to WFH,

[hiclark1986]

So i am continuing to have issues with Pulse secure VPN, it disconnects every 3-5 minutes. Causing major disruption to working day as WFH and need internet access while on calls to clients. 

Spoke with Three today, they reset my router from their side, and WHILE is was on the call to them the VPN disconnected again. I was told to wait 7 days before asking to get out of my contract due to the ongoing issues. 

They also told me that the issues are not related to Three at all and to contact my IT department - I have already done this and been confirmed it is an issue with Three. What also confirmed this for me is that before moving to Three, I was with Sky and had no connection issues (only reason I moved was the price, however its now becoming clear why it is so cheap!!). 

I have also noticed that over the past 2 weeks, if I am using TEAMS on my work phone (when connected via Wifi) the call drops, but if i am on mobile network, there are no issues. 

Has anyone found any solution to this yet?

To note, I have tried all of the options available in the previous comments and nothing seems to have worked. I'm at my wits end! 

@JonathanB any help would be very much appreciated before I just give in and leave Three all together. 

[Markc_uk]

Same issue here. This has been going on for months and I too am at the point of leaving.

This problem is 100% down to Three. As soon as I use an alternative ISP connection, no problems at all. Ivanti VPN stays up all day without a hitch. Move back to 4 5G, I get 60 seconds or so.

Utter junk to be honest.

[JonathanB]

Hi everyone,

I'm sorry we've not had any updates on this for some time now, this issue seems to have proved to be very elusive for our support teams. Our Service Desk would like to perform some live testing with some users if possible.

If anyone with ongoing VPN connection issues would like to help with this please let me know by replying or sending me a PM.

Thanks,
Jonathan