My ISP modem/router is currently in the basement with my desktop PCs. The living room is upstairs, and while the WiFi does reach, the signal is weak. I had a D-Link DIR-601 sitting unused so I decided to set it up as a wireless access point and network switch. To accomplish this I ran ethernet from the basement to the living room. I simply plug an ethernet cable into the ISP modem/router and then into the basement jack, and then another ethernet cable into the living room jack. Testing the wiring with my laptop directly connected to the living room jack resulted in an internet speed of 30mbps as tested by speedtest.net. This is exactly the speed I expected.
I setup the DIR-601 as a wireless access point and switch, but when plugged into the living room jack I only get 10mbps as tested by speedtest.net, both on WiFi and using a LAN port. When I move the DIR-601 into the basement and connect it directly to the ISP modem/router without going through my new ethernet wiring I get 30mbps. So, that leads me to believe the DIR-601 is setup correctly and the problem must be in the wiring. Yet, again, connected directly to the new living room jack without the DIR-601 yields the expected performance. It is only the combination of the DIR-601 and the new living room jack that result in 10mbps speed.
In all cases the ethernet cables are connected to LAN ports, on both the ISP modem/router and the DIR-601. UPnP and DHCP are both off on the DIR-601, and I have assigned it a valid IP address. All I can think is that there must be something wrong with my new ethernet cable to the living room that doesn't impact speed when connected directly to a laptop, but does impact speed connected to another router. But what that might be is beyond my skill level.
Thoughts on what is going on?
DIR-601 Hardware version = A1
DIR-601 Firmware version = 1.04NA (apparently the latest available)
Region: Western United States
ISP: Frontier FIOS
ISP Modem: Actiontec MI424WR-GEN3I
ISP Link speeds: UP 30mbps DOWN 5mbps