Prerequisites:

• I'm running firmware 1.5.1.1
  Login => go to LAN General Setup => Edit a profile, switch off DHCP for a subnet in a VLAN.

I follow the instructions to configure the DHCP relay on the profile. I select the profile that has the DHCP server and fill in the IP address.

Problem:
I get an error with a red question mark on the IP address of the of the DHCP Server IP. It's like as if a valid IP address is not accepted. Do more people have this problem?