Port forward with 2 internet lines

Hi,

I’m quite new in mikrotik.

I have 2 internet lines and i’m trying to forward port 80 to an internal address. As long as both lines are connected, port forward works from both real IP-s. But if i disconnect the first line, then second disconnects also and it stops working. The opposite works anyway…

So, how can i configure both lines to work, independently from each other? I masqueraded both lines and used 2 nat-s to forward from each real IP address…

Can someone help me?

Thank you!

Please can you post your config?

/ip address> print
/interface> print
/ip firewall filter print
/ip firewall nat print   
/ip route print

thanks.