Couldn't find my model on the list. I'm using an Archer VR1210v that I'm not able to access from outside.

I have a static public IP address.

The device I'm trying to access from remote is a desktop PC running Linux Mint 21.2 that I'm pretty sure has no firewall.

If I try from remote to access to this device using traceroute, tracepath or ping commands I'm not able to reach it.

I tried also installing a VPN (Tailscale) but with no success. Or better, with VPN I'm able to ping the device but not traceroute it. It returns me !H error.

After researching I found that may be something in the router settings blocking ICMP, but I found nothing in my router settings page about ICMP.

I even totally disabled any firewall on the router settings, rebooted, but still I'm not able to manage to connect to my device.