Cannot ping devices behind (VPNHotspot+hotspot+VPN) but they can ping back.

[abosaad11]

(In short: I can ping out, but I can't ping in. Issue on hotspot phone, most likely caused by the VPNHotspot app)

I spent long hours on this problem with very little progress. I run an OpenVPN server at home. Using VPNHotspot I was able to ping my network 192.168.1.0/24 and the VPN subnet 10.8.8.0/24 from the devices behind a hotspot 192.168.215.0/24 running on a Samsung Galaxy S10, Android 12.

I spent hours editing: static routes, OpenVPN server and client config and playing with VPNHotspot's app settings.

The only progress I made is that I was able to ping the S10's hotspot IP 192.168.215.2 from my network 192.168.1.0/24 through the VPN 10.8.8.0/24. However, I could never ping the devices behind that hotspot/VPNHotspot. Which tells me the problem is somewhere on the phone. Something on the phone is not routing the packets to these devices.

The devices can ping my local network and access the internet just fine, the problem is accessing these devices (which I need for Home Assistant).

This exact issue happens in both Hotspot and Repeater modes in the app.

Any idea how to fix this?

userlog.txt

(I noticed the iptables rules are different for '192.168.215.2' and other devices '192.168.215.130, 192.168.215.182'. I don't know what everything means but this may be of interest to you).

Than you

[DerSchnelle-noob]

I have the exact same problem with a connection over wireguard.

Hotspot is created with connection to home-network via wireguard. Devices connected to the hotspot can ping devices in the home-network, but not the other way around.