what is your PC IP address ? set the IP on the printer manually without DHCP. IP must be in the same reange.
example> if pc ip is 192.168.0.2 set the printer IP for 192.168.0.200, gateway should be 192.168.0.1 and mask 255.255.255.0.
for PC IP 192.168.1.3 you will set printer IP 192.168.1.200 and gateway 192.168.1.1 etc...
I recco disabling DHCP, looks like your router doesnt support that feature or ist not configured properly.
When i set this up last year, I was able to get to Internet Services - Web User Interface thru following:
http://192.168.1.10/sws/index.html
And no since few days neither my printer is connected to my network nor the above works.
When i print network configuration i see a different IP Address : 169.254.86.78
My request timed out when i did a Ping 169.254.86.78
What do you recommend ?