So having VPN network for example 192.168.3.0/24 and LAN network 192.168.2.0/24 is not good? ... View more

A lot of help here, and I appreciate it! A lot of questions from you and I dont know if I have answered all of them. It´s been an intensive couple of days. But the thing is, we have kind of concluded that it is not a DNS problem. But perhaps a firewall problem.    Do I need to open some ports for Office365 over VPN? Because the only rule that is set up today for the VPN network is: "Allow - Any Protocol - Source: [VPN Network] - Src port: Any - Dest: [LAN Network] - Dest port: Any"   And then there is two other rules including soruce "Any" on port 25,443 towards local server. ... View more

One question on this. The VPN is set up so they of course get their own subnet while on the VPN. So it is the same for the ones in Sweden and for the ones in Denmark. Do I really need to allow traffic from their local network range? ... View more

Exchange is on-prem but is supposed to move to the cloud in the near future. Yeah I am with you on that! ... View more

I will ask them to do that and see the outcome. ... View more

A full tunnel VPN. It's a L2TP VPN through Windows. I will look into doing some pcap. ... View more