Hi,
I recently purchased a Slate AX and I'm experiencing the same issue on firmware version 4.7.
My setup:
[ISP Modem] → [Slate AX]
Test scenario:
[Android device] → OpenVPN → [Slate AX] → VPN Cascading enabled
Both the OpenVPN server and OpenVPN client (connected to NordVPN) are running on the Slate AX, with VPN Cascading enabled.
Whenever the OpenVPN client on the Slate AX is active, I'm unable to connect to the OpenVPN server. I followed the suggestion to wait and try again later (I waited for around 2 hours) but the connection still failed. I also tested with multiple devices (Windows and Android), but with no success.
However, if I disconnect the VPN client on the Slate AX, I can connect to the OpenVPN server without any issues.
This problem does not occur on firmware version 4.6.11, where everything works as expected.
Is there a known fix or workaround for this issue in version 4.7?
Best regards