Extremely strange transfer problem (wired LAN)

computerpro3

LightningRod
Joined
Mar 29, 2003
Messages
8,702
This is one of the strangest things I've experienced. I just finished wiring my gigabit network. It's important to note that I DO NOT know what the cables look like inside the wall; I did not run them myself and only terminated the wall plates and patch cables.

Network looks like this, all 1gbps links:


WAN to WNDR4000 router

Port 1 on the WNDR4000 goes to Desktop, port 2 goes to Windows Home server


When I initiate a Desktop -> Server transfer from the Desktop, I get 106 megabytes per second transfer rate.

When I initiate a Server -> Desktop transfer from the Desktop, I get 21 Megabytes per second.

When I initiate a Desktop -> Server transfer from the Server, I get 80 megabytes per second.

When I initiate a Server -> Desktop transfer from the Server, I get a 80 megabytes per second.



What the hell is going on? Shouldn't it be the same regardless of which machine requests the transfer? The really weird thing is the Desktop only pulling 21 Megabytes per second from Desktop initiates transfers, whereas if I remote into the server and initiate the EXACT SAME transfer from there, it jumps to 80 megabytes per second. This makes no sense as they should use the same wires.....


Any ideas? I thought maybe a crossed wire during termination might cause this, but I'm pretty sure I didn't screw up and it makes no sense that the cable would be the problem since I can pull 80 megabytes from the server.
 
Wow, believe it or not it was Teracopy. Uninstalled it and I'm back to full gigabit speeds in every situation.

I wonder why on earth it was causing the problem?
 
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