Hi,
About 2 years ago, we had an issue with some VPN providers causing traffic to get “fragmented” resulting in very low speeds. This was addressed on our end back then, and it resolved the issue.
I also know, that some VPN vendors struggle with IPv6, which is something all we are pretty ahead of the curve on. Which could also be an issue, if the VPN doesn't support IPv6.
I would recommend contacting our broadband support, but also supply them with as much information as your employer allows.
(IP of the VPN is preferable, as it makes it finding the root cause of the issue a lot easier).
But also as exact timestamps as possible is minimum of what we would need to identify the root cause, of when you connect/setup a VPN connection.
Thanks @Karl Von Bredband
That was helpful! Is there any way to contact broadband via email? I tried to get help via email and they kept insisting I call instead and claimed that the broadband team has no emails…
I don’t really want to send logs and IP adresses over the phone.
Thanks @Karl Von Bredband
That was helpful! Is there any way to contact broadband via email? I tried to get help via email and they kept insisting I call instead and claimed that the broadband team has no emails…
I don’t really want to send logs and IP adresses over the phone.
The broadband support don't have a direct email address, and is currently only available over phone (often during more days than the “regular” support. For example they are open tomorrow while the rest of the support will be closed).
If you contact the broadband support over the phone and explain the issue to them and ask them that you can email logs/IP-addresses, they can give you their personal work email to which you can send it.
Wont hurt if you mention that you have written to me on 3Community in case they need any assistance, they know who i am 
They wont be able to supply a solution/answer during the call, as this sounds like something that would need to be escalated to the network department so they can investigate.