The speed drops from 1 GB/s to 10 MB/s

[LaserKid]

Hello,

Network connection speeds drops from 1 Gb/s down to 10 Mb/s

-Tried forcing the PC to communicate at 1 Gb/S "Link Speed & Duplex"
-Tried reinstalling drivers

Didn't help.
System OC: Windows Embedded SP3

Any suggestions?

 

[PhilFrisbie]

Are you sure the cable is a properly wired CAT 6?

 

[LaserKid]

Can´t say it´s CAT6 for sure, might be CAT5E.

Here is the thing though:
Updating drivers help for ~ 2 weeks then the issue is back again

I had the PC connect to an external laptop (Used a different cable, CAT5E) without anything running on either computers and the speed did drop down to 10 Mb/s