Slow Cat6 Ethernet Cable

[Kolzach]

I recently replaced my old Cat5e cable with a Cat6 cable, and I've noticed a lot slower speeds compared to my Cat5e cable, I was getting about 7MB/s down while now I cap at 3MB/s and it takes much longer to get to that speed than it did before. I can't even keep up with a 720p YouTube video as it buffers every 4 to 5 seconds and I have to watch livestreams on mobile quality while before I could easily stream a 1080p video or a source quality stream. I got the Cat6 cable from Walmart and it's manufactured by a company I've never heard of called "Blackweb" I didn't look at reviews when I bought it, I didn't think you could get scammed for an ethernet cable. I use the Killer Network Manager for controlling as much speed as I can.

I have no knowledge of networking so I'm really confused as to why my speeds are so much slower than before, it's probably the cable though.

 

[photonboy]

Hi.
It's almost certainly a bad cable.

Ethernet protocol involves checking data for corruption, then requesting new packets to be sent if corruption is found. I suspect you are getting a lot of errors thus killing your performance by resending far too much data.

CAT6 will not benefit you over CAT5e by the way. CAT5e can transfer roughly 120MBps. CAT6 can transfer 8x that in theory though you would not have the capability to transfer anything that fast (unless locally between PC's or through a 10GBit switch when copying data off of an SSD.

So if you have the CAT5e cable then simply swap it back. Problem goes away? Bad cable. (again the new one isn't going to improve anything anyway)

 

[nigelivey]

I recently replaced my old Cat5e cable with a Cat6 cable, and I've noticed a lot slower speeds compared to my Cat5e cable, I was getting about 7MB/s down while now I cap at 3MB/s and it takes much longer to get to that speed than it did before. I can't even keep up with a 720p YouTube video as it buffers every 4 to 5 seconds and I have to watch livestreams on mobile quality while before I could easily stream a 1080p video or a source quality stream. I got the Cat6 cable from Walmart and it's manufactured by a company I've never heard of called "Blackweb" I didn't look at reviews when I bought it, I didn't think you could get scammed for an ethernet cable. I use the Killer Network Manager for controlling as much speed as I can.

I have no knowledge of networking so I'm really confused as to why my speeds are so much slower than before, it's probably the cable though.

Why on earth did you swap it for Cat6??