VPN - unable to ping win10 PC's, other devices = no problem....

RouterOS General
1

Hi there…
I have three site VPN using 2x MTs (192.168.2.x; 192.168.3.x) + 1xDraytek (192.168.1.x) - using IPsec tunnels.
Usually it works quite well, however I’m struggling with recent ping/network visuability of 192.168.3.x subnet. Thing is all sites can see each other, but… I can’t see/ping any Windows10 PC on 192.168.3.x subnet. Weired is though, that I have no problems accessing/pinging other devices like NAS, network printers and Win7 PCs. The MT router located in 192.168.3.x can ping EVERY LAN device/PC successfully (even Win10 PCs). So… what da hell? :open_mouth:

PS. Accessing win10 PC’s from other subnets worked couple days ago. No changes have been made on routers/networks since then. Disabling firewall/antivirus doesn’t change a thing… :confused:

2

Since the Mikrotik can ping the win 10 PCs it seems like it’s blocking responses with a forward rule.
Can the win 10 PCs ping each other?

3

Have you updated your Win10 recently?
Win10 has “new feature” … each time it upgrades itself it tries (usually with success) to “protect” users and switches network to “public” from “private” without any information. In such situation Win10 does not respond as it’s firewall blocks pings. The other drawback is that all Win10 shared resources are suddenly unaccessible even if user sees them as “shared” in the computer.