LucSkywalker Hi, I am using OpenVPN without any problems (server on Synology and clients on Android/Windows 10) when I am in my home country (the Netherlands) for some years now : - using an Android phone and the Android OpenVPN client - works OK! - using a PC OpenVPN client connecting through the Android phone's Mobiel hotspot - works OK! - reaching my Synology login webpage (https) - works OK! My network operator is KPN BUT... when I am traveling abroad, at the moment roaming from Belgium, using Orange B | KPN something goes wrong. - I am still able to connect (phone/PC) to my OpenVPN server - I am able to sent and receive ICMP Ping requests and replies. - I am able to traceroute But unfortunately I am not able to connect to my Synology login web-page (https) or any other service on my Home network when I am abroad... So something goes wrong using TCP ... ??? When I am using some WiFi network abroad everything works as as expected. Any help is appreciated. Cheers Luc
TinCanTech Sounds like a network conflict: https://community.openvpn.net/openvpn/wiki/AvoidRoutingConflicts Please see: https://forums.openvpn.net/viewtopic.php?f=30&t=22603#p68963
LucSkywalker Hi, Thank you for your quick response! In my configuration: My home network uses: 172.22.0.0 The Android built-in hotspot uses: 192.168.43.0 The Synology OpenVPN configuration uses: 10.8.0.0 I'll try to change (one of) the last two networks (in the subnets list one should try to avoid). I will report back in due course whether the problem has been solved with that. Thank you again for your help. Regards, Luc
TinCanTech LucSkywalker wrote My home network uses: 172.22.0.0 The Android built-in hotspot uses: 192.168.43.0 The Synology OpenVPN configuration uses: 10.8.0.0 I guess it is not a network conflict .. LucSkywalker wrote will report back in due course 8-)