That shouldn't be a problem as that leaves you over 250 possible IP addresses. Set a static address outside of the DHCP range set in the router. So if the DHCP range is 192.168.0.10 to 192.168.0.20 use 192.168.0.30 for your static address.
Of course the best thing is to get DHCP working on the laptop again. Perhaps someone who has one of these routers can make some suggestions...anyone?
---------- Post added at 00:12 ---------- Previous post was at 00:04 ----------
This might be a useful article for you to read