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Forum Discussion
Dgriffith
Aug 19, 2016Guide
R6400 Networking speeds
good morning all, i have a R6400 router installed in my home and i seem to be having issues on one of my har wire lines i have ran, to note i have ran Cat 5e thoughout my whole house, currently i have about 200Mbps speeds from my modem using Comcast as my ISP, i have my descktop hard wired to router, i have another line plugged into the router that runs to master bedroom (nothing plugged into it on that end) another one from the router to my living room where that line goes into a gigabit switch (in my gigabit switch i have a PS4,a Android TV box, surround sound reciever and tv) and the last port on the router goes down to another switch on my desk that goes to my NAS drive and another bedroom in the house (nothing connected in room)
Ok so on my desktop PC im getting about 190 to 207 Mbps when i run a test, no big deal its perfect but when i try to run a speed test on anything in my living room i cant seem to get over 20Mbps, so i tried taking the line out of the gigabit switch and bypassing it strait into my laptop and again not more than 20Mbps now note i went back to my office where the router is and i took the cable that goes to my living room and went directly to my modem with it went back to laptop to run test again and now i get just over 100Mbps, so seems like my Cat 5e cable is good and that the router seems to be limiting my speeds somehow, can anyone else help with this issue? what could possibly be the issue here? sorry for all of the back and fourth stuff but i was trying to give as much description as i could with my system
If a direct connection from a laptop in the living room to the modem is getting slightly over 100 Mbps instead of 200 Mbps, that still sounds like something is flaky.
What color is the link light on the R6400 LAN port connected to the living room? It should be white for Gigabit speeds. If it's amber then the port is running at 100 Mbps, so either your cable is faulty, the distance to the living is too far or there is interference affecting the line (e.g. A/C power lines may be too close).
Gigabit Ethernet requires all 4 wire pairs in the Cat 5e cable to be in good working order. Do you have a cable tester (like this)? While it can't detect interference, it can verify basic connectivity on all 4 wire pairs.
8 Replies
If a direct connection from a laptop in the living room to the modem is getting slightly over 100 Mbps instead of 200 Mbps, that still sounds like something is flaky.
What color is the link light on the R6400 LAN port connected to the living room? It should be white for Gigabit speeds. If it's amber then the port is running at 100 Mbps, so either your cable is faulty, the distance to the living is too far or there is interference affecting the line (e.g. A/C power lines may be too close).
Gigabit Ethernet requires all 4 wire pairs in the Cat 5e cable to be in good working order. Do you have a cable tester (like this)? While it can't detect interference, it can verify basic connectivity on all 4 wire pairs.
I dont have a a tester at all but i did just order the one you linked, it will be here tomorrow, and actually none of my lights are white the two that are active are actually only orange, how far is a safe distance to run Cat 5e? i ended up putting new RJ45 female ends on the cable thinking maybe something went wrong there but that was not the issue at all. but tomorrow ill have that tester to try out and ill be able to check all of the wires.
The recommended safe distance for Cat 5e is 100 meters.