Issue accessing internal network resources from L2TP VPN

Hello,
I watched the official video about how to set up a VPN on Youtube yesterday and I have set up the L2TP VPN like this

However, if I use the configuration, the only thing I can do is ping my server in the network. Other functionality (ssh, smb, web…) doesn’t work. The result of accessing these services are always “unable to connect”.

Is there any way I can diagnose what’s wrong with the VPN connection?
Thanks.

On the video one thing is clear: your device must be perfectly blank and “just powered on”…
All the settings you have already done on your device are destroyed, altered or modified with quickset…

Reset to default, and use the video tutorial.
(and when you talk about a video, specify what video…)

Thanks for the previous reply about something wrong with the video.
There's 1 thing wrong with the ROS settings - it was like a few years ago I tried to create an L2TP with IPSec - and it kept that setting there.
Turned on L2TP with IPSec PSK on the cellphone works.

BTW reset and redo everything is not possible.

check using ip->firewall->connections if you see the connections you are trying to establish

yes, the previous reply is because you have more pool on vpn and also other routes, nothing of all are on official video,
I think you see another video, neither the IP 172 etc. are equal…