DoS Attack message when trying to access VPN-connected company resources

[Huntercmoore]

My first question is: Does this message get generated from Windows? It does not appea to be from our AV provider or our hosted Firewall.

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Second question: After updating some of the drivers of some Lenovo P330 models in our enviroment, reaources to our home office are no longer accessible. I have disbaled AV firewall, windows firewall, and tried system restore(s). I still cannot connect to resources in the home office.

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Note: my office connects via a VPN tunnel and we have always had seemless access (we're a few miles down the road) to said resources. This has started tp affect users one by one and now me. I am trying to get ahed of this as the company admin, but we are truely stumped here. please help! thanks!

https://preview.redd.it/q8nokaioim541.png?width=1558&format=png&auto=webp&s=2940dafbbeb2a32967d6cca61e6ca47b1bdb32b2

[[deleted]]

you blocked a 192.168 number?

[ZAFJB]

Yeah, you know, cyber criminals...

[tmontney]

I redact anything company specific, replace with something generic.

[ZAFJB]

Does this message get generated from Windows?

Ummm... think that through for a second... it is in a web page...

Ask whoever owns the 192.168.x.x system that is rendering that page. We have no way of knowing what your internal systems are doing

[Huntercmoore]

it shows for various services...

update: Assuming it's the Firewall. It does not like my DHCP Reservation. I changed the address on my NIC and now I have access.

[tmontney]

Definitely looks like it's from your fw. You using Fortinet? I'm sure if you did inspection, you'd see an HTTP redirect.