Web interface not accessible after installing Zenarmor

[Zofoor]

Hi all!
I've just installed Zenarmor, free edition, following the manual and selecting the LAN interface and didn't changed any option.

After that I cannot access the web interface or SSH anymore. I can still reach the web-interface by using the VPN to access to the LAN from outside.

Did I missed something? What should I do to fix this?
Note: I've installed on an PC Engines Apu2 with 4 GB ram.

[Zofoor]

My fault, I had to disable Hardware CRC and Hardware TSO under Interfaces->Settings.