Asus router's OpenVPN can't find the LAN device

[frank841220]

Hi, everyone
I’m using ASUS AX300 as my router, connected with two devices
(Synology, Ubuntu-PC, MOXA)
And its self-build OpenVPN of the router.
I’ve set up a private ubuntu server in our office as IP: 192.168.2.80
Hence I can connect my server and enter the Synology & MOXA in the local network.
But when I connect to the OpenVPN at home,
I can also connect to Synology & MOXA, but I can’t find the ubuntu server whether I ping it or open the IP address 192.168.2.80(:22).
I also set up a DNS IP xxx.xxx.1.10, xxx.xxx.13.10
as well as my Ubuntu PC, but it’s not work
https://drive.google.com/file/d/1lxmhuP ... sp=sharing
https://drive.google.com/file/d/1lxmhuP ... sp=sharing
the attachments it's my Asus router setting.

[Pippin]

Hi,

Have you tried disabling the firewall on Ubuntu?

[frank841220]

Hi,

Have you tried disabling the firewall on Ubuntu?

Yes, the firewall of Ubuntu has been turn off.
I still can't not connect the Ubuntu's default page IP: 192.168.2.80 from OpenVPN connection of ASUS.
I still feel confused

[Pippin]

Please post the configuration file and a log at --verb 4 of the client, see here:
viewtopic.php?t=22603#p68963

You have selected "Manage Client-Specific Options", we need to see those options.

Avoid using compression.
Any reason for using TCP?

After changing options you need to re-export the client config file, then try again.