Hi,

Think I have found a bug with port forwarding.  Not sure exactly which HW version I have.

Trying to temporarily renew certs with certbot from a virtual server behind router at 10.0.0.190:80, with DNS served by cloudflare

Set port fwd to 

internal: 10.0.0.190:80

external port: 80

try and save says cannot save,  ip address is already taken. please enter another.

This doesnt make sense for saving the port fwd.

Found the item that unblocks this, had to remove static reservation for 10.0.0.190, my DHCP range is 10.0.0.5-.100

Then the above port forward saved.

It shouldnt matter if the IP is DHCP set or reserved, the forward should save.

There were no other port fwds in the save list at the time.