I recently had my home provider update me to 1 Gb speeds, but the actual speeds I am seeing on two different computers is bafflingly huge.
First, my network layout. I work primarily out of a home office. The physical medium (cable) enters the house inside that same office. The modem they provided also resides in that same office, and it has an integrated 4-port switch.
I have two computers connected; one a Lenovo laptop i use primarily for work, and a large desktop (I call the “big” computer) which is for personal stuff. Both sit within three feet of the modem/switch, and are both connected via short CAT8 cables (minimal extra cable). There is nothing else between the switch and either computer - just a cable. Both are Win 10.
In using Speedtest.net the Lenovo routinely exceeds 940 Mbs, so the speed is there and the provider isn’t stiffing me. The big computer however never exceeds about 40% of that speed (around 410). I tried some different speed checks that allow variable data size and the difference is even more dramatic (the Lenovo is 5-10 times faster).
Since they are both so physically close and connected to the same switch this should be the easiest thing in the world to troubleshoot, and here’s what I’ve done so far:
Swapped cables. Swapped ports. Tried all the ports. Bought a brand new, even shorter gold plated CAT8 cable. None of this changed anything, so I thought maybe my NIC was the issue and bought a new Gigabit NIC and put it in an unused slot. Still same thing.
Maybe it’s my security SW, so I rebooted in safe mode with networking. Same thing.
Made sure all drivers were up to date (they were) then pored over the NIC configs and they were identical. I always prefer auto negotiation, but for giggles tried hard settings to 1G. No change.
I checked the mobo BIOS for any “missed” settings. Nothing i can see there.
At this point I am running out of ideas and am wondering if there isn’t something buried in the Win 10 config that’s capping the speed on the big PC, but the burning question i have is are these tests reliable? Could there be anything in either PC that’s producing misleading numbers?
If not, what else is there to even check?
First, my network layout. I work primarily out of a home office. The physical medium (cable) enters the house inside that same office. The modem they provided also resides in that same office, and it has an integrated 4-port switch.
I have two computers connected; one a Lenovo laptop i use primarily for work, and a large desktop (I call the “big” computer) which is for personal stuff. Both sit within three feet of the modem/switch, and are both connected via short CAT8 cables (minimal extra cable). There is nothing else between the switch and either computer - just a cable. Both are Win 10.
In using Speedtest.net the Lenovo routinely exceeds 940 Mbs, so the speed is there and the provider isn’t stiffing me. The big computer however never exceeds about 40% of that speed (around 410). I tried some different speed checks that allow variable data size and the difference is even more dramatic (the Lenovo is 5-10 times faster).
Since they are both so physically close and connected to the same switch this should be the easiest thing in the world to troubleshoot, and here’s what I’ve done so far:
Swapped cables. Swapped ports. Tried all the ports. Bought a brand new, even shorter gold plated CAT8 cable. None of this changed anything, so I thought maybe my NIC was the issue and bought a new Gigabit NIC and put it in an unused slot. Still same thing.
Maybe it’s my security SW, so I rebooted in safe mode with networking. Same thing.
Made sure all drivers were up to date (they were) then pored over the NIC configs and they were identical. I always prefer auto negotiation, but for giggles tried hard settings to 1G. No change.
I checked the mobo BIOS for any “missed” settings. Nothing i can see there.
At this point I am running out of ideas and am wondering if there isn’t something buried in the Win 10 config that’s capping the speed on the big PC, but the burning question i have is are these tests reliable? Could there be anything in either PC that’s producing misleading numbers?
If not, what else is there to even check?