Question Wired connection slower than all others

Dec 7, 2019
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Currently I am hardwired into my router and I am only getting 25mbp/s, I am getting 100mbp/s to my home, and everyone else on the network is getting 100mbp/s.

I recently got a new router, the NETGEAR Nighthawk Smart WiFi Router (R6700) - AC1750, since my old one was dying and we needed an upgrade. When testing our connections to the new router I noticed that my speed was 25mbp/s, but when everyone else tested it was 100mbp/s. This included not only wireless devices, but also other wired computers, all were getting 100mbp/s, my phone, tablets, laptops, a different wired desktop, all getting 100mbp/s. The only computer not getting these speeds is my desktop, that is wired into the router.

I built my own computer and below are the specs:


At first I thought this might be a cable issue, I couldn't confirm what grade my old cable was since the print wore out. So I went and bought a new CAT6 ethernet, this didn't fix the issue. I tried updating the drivers to the latest that intel offered which is 12.18.9.10, dated 7/25/2019. Again, issue not fixed. I tried, disabling the connector and enabling it, restarting my computer, setting the Speed & Duplex to 1gbp/s Full Duplex, 100mbp/s Full Duplex and Half Duplex, currently it's defaulted to Auto Negotiate. I've tried different suggestions across the internet, nothing.

So I thought maybe my network adapter on the MB was going bad and went and bought a new network adapter, this one Intel EXPI9301CTBLK 10/ 100/ 1000Mbps PCI-Express Network Adapter 1 x RJ4. Just plugged it in, made sure the drivers were up to date, disabled my MB adapter. And I'm still getting 25mbp/s. At this point it certainly seems to be software related, and not hardware related but I have no idea where to look for this magical setting that is throttling my internet.

Any help would be greatly appreciated. Thank you.
 
Flushed my DNS, didn't do anything. In Resource Monitor most of the processes that are running use barely any data. Most send/receive around 1kb/s at most, with the most taxing being something like chrome when I have a twitch stream open, even then it only peaks at 200-400kb/s. I haven't measured what a multiplayer game might pull. Doesn't seem like any process is a resource hog.