How to change WAN to 1000M from 100M?

sarvap
Aspirant
Aug 17, 2019
Hi Ryanbenson,

As I said, when I connect the cable directly to my desktop, I am getting the fully speed (175 Mbps). I am getting 94 - 95 Mbps only when I am connecting thru the router. I am sure that there is no issues in the cable. The cable is a four-pair cable only.
- antinode
  Guru
  Aug 17, 2019
  > I have directly connected the LAN cable to desktop [...]
  
     What are the devices at each end of this cable? Are they both
  gigabit-capable?
  
  > [...] I am getting 175 Mbps speed in the Speedtest. [...]
  
     Which "the Speedtest"?
  
  > Inside the router administration page I am seeing WAN is 100M/full. I
  > don't see any options to change this to 1000M or something. [...]
  
     There are no such options; the router negotiates its port speed with
  the device at the other end of the cable.
  
  > [...] I am sure that there is no issues in the cable. [...]
  
     Prove it. As a test, if you connect one of your cables between two
  LAN Ethernet ports on the R6400v2, then what do the corresponding
  port-status LED indicators indicate?
  
     Visit http://netgear.com/support , put in your model number, and look
  for Documentation. Get the User Manual. Read. Look for the LED
  descriptions.
  
     According to your picture, the LAN4 port also runs at 100Mb/s. What
  happens if you test that cable?
  
  > [...] The cable is a four-pair cable only.
  
     All eight wires are needed for a gigabit connection. Only (the
  right) four are needed for lower speeds.

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How to change WAN to 1000M from 100M?