I have been using my AR750 Slate whenever I travel. I used to use WireGuard and everything was working. Recently, i had to switch to OpenVPN due to the WireGuard on OPNsense is acting up.
The problem that I’m experiencing with the Slate is i could not access my self hosted services. I’m using a reverse proxy (nginx proxy manager) to get access some of my services. Also, I’m using the adguardhome plugin on OPNsense as my adblocker.
When the Slate connects via the OpenVPN, i can browse the internet without a problem, except for accessing my services via their FQDN - e.g. emby.internal.lan, kosync.internal.lan, etc. I can ping the address, I just couldnt resolve any FQDN. Since I’m using reverse proxy, it is important for me to use FQDN.
In addition, I could not reach my publicly available service such as nextcloud. E.g. nextcloud.external.com.
If dont use the Slate and VPN directly from my mobile or laptop, all my FQDN works without any issues, but with Slate only the Internet works. My OpenVPN is a full-tunnel
I didnt define the DNS server on my Slate but got the DNS server from OPNsense. I checked the Slate and it shows that the DNS is the same as the OpenVPN gateway.
I’m not using the adguardhome on Slate. Do i still need to do the “/internal.lan/opnsense-ip:53”?
Edit:
When i added the /internal.lan/opnsense-ip:53, i got an error “invalid dns”. This would not allow me to save the settings
If you don’t use AdGuard on your Slate, there’s no need to add the specific DNS entry.
FYI, please note that you need to enter the bracket [ ] for that DNS entry, so [/internal.lan/]opnsense-ip:53
That’s probably why you got that “invalid dns” error message.
Regarding your issue, I’m not sure why it’s happening, I’m not used to work with OpenVPN on the GL.inet devices. Maybe someone else on this forum could help you.
Is there any particular reason why you cannot use Wireguard on your OPNsense?