I just changed out an old Linksys WRT54GS wireless router for a TP-Link TL-WR841N wireless router. I immediately flashed the router to use DD-WRT.
Everything went seamlessly except that my Windows 8.1 desktop can no longer see my Brother HL-2270DW network printer. The printer has a reserved DHCP address of 192.168.1.200 on my local network. I can reach the printer's web interface from Google Chrome on my Android device and from my Windows 7 laptop by simply entering the IP address in the browser's address bar. I can print to the printer from my Windows 7 laptop, also.
I cannot connect to the printer in any way from Windows 8.1. I can connect to the Internet through the router on Windows 8.1. I can connect to all other devices on the local network through Windows 8.1.
ping failed (using the known good reserved IP address of 192.168.1.200). Initially they failed with a "Destination host unreachable" error. It appeared there was an "Invalid" entry in the ARP table of the Win 8.1 machine. I added a static ARP entry with the following command:
netsh interface ipv4 add neighbors Ethernet 192.168.1.200 00-1b-a9-12-34-56
tracert return timeout errors instead of host unreachable errors.