I'm trying to connect to a corporate VPN endpoint, to allow remote access to intranet apps, etc. It's a M$ PPTP VPN.
I seem to have the problem at my home. A colleague tested my credentials at his home (with a Windows 10 laptop) and had no issues. I have tried two completely different Windows 7 desktops, without success. Also no joy with a Windows 10 laptop, but I seemed to get closer when I switched to a phone hot spot (and bypassed my router and ISP). Still didn't work properly though.
The VPN client connects OK, but Windows Network and Sharing Center shows an exclamation mark next to the client and a red cross next to "Internet". Status for the VPN is "No Network". Pinging doesn't get me anywhere. Network type is "Work" and Windows Firewall is disabled.
The router is a TP-Link Archer D2, which includes specific settings for VPN passthrough - they're enabled by default.
I can connect to other VPNs, but possibly not with the M$ client.
I've trawled the web for hours without finding a solution. Any ideas?