@Fae Hi, this looks ticket worthy!

  @Bug_do_Ti 

I also found this issue and went straight to contact support.
The response was as follows:

It is only the current ER605 front-end display that has been changed. The normal configuration of 0.1/24 or 0.100/24 is issued as 0.0/24 in the device.

Hello @Bug_do_Ti 

Bug_do_Ti wrote

I made the last update on the ER605 and all the LayOut was changed in the OpenVPN Server field (Add) now they require DNS and do not accept LOCAL NETWORK 192.168.0.1/24 (Address of my router) it only accepts 192.168.0.0/24. In OpenVPN if the local network address is different from the router's local ip, it does not go up. I can even connect, but it does not browse or ping the remote network IP.

The Local Network actually adopts the network address format xx.xx.xx. The last update has made the Local Network display as what it should be, it's not an error.

What's your actual LAN IP address of your ER605 router? You mentioned 192.168.0.1/24 in text but your screenshot shows 192.168.5.0/24. If you want to use the OpenVPN as Internet proxy, please enable "Full Mode".