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I have directly connected the LAN cable to desktop and I am getting 175 Mbps speed in the Speedtest. But if I connect the LAN wire to router and desktop to router I am getting only 94 - 95 Mbps.
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 options to set Wi-Fi to 240 Mbps and 1300 Mbps for 2.4 and 5 GHz bands but not for WAN port.
This seems to be a hardware issue in the router. I've talked with Netgear customer care over phone and they've arranged for a replacement since the router is in warranty period. Thank you everyone.
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.
> 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.
This seems to be a hardware issue in the router. I've talked with Netgear customer care over phone and they've arranged for a replacement since the router is in warranty period. Thank you everyone.
