Originally Posted by JapanDave
That is the very first thing I did when I originally started to allocate IP's. I would re-boot each device, write down its allocated IP and then assign that same IP as static.
You could have IP address conflicts here....
If you are setting a static IP on the PC, then you shouldn't have to set anything on the router for that PC. The router will only be responsible for DHCP addresses. For example:
dhcp pool: 192.168.1.200 - 192.168.1.254
If your computer is setup for DHCP, it might grab 192.168.1.200. If you then set your PC for static using that same IP address (.200), you can get a conflict. The router can/will assign .200 to another device.
So, if you want to set a static on your PC, don't use an address in the same range as the router DHCP pool. Try using 192.168.1.10 for example.
As an alternative, you could set a "reserved" IP address. In this scenario, you leave the PC set to DHCP. On the router, you should have a section within the DHCP setup to define reserved addresses based on the PC's MAC address. With a reserved address, your PC still makes DHCP requests, but it would always get the same address from the router. (.200 in the example above)
Hope that helps.