I am glad I found this post, as its given me a chance to speak on my experienced, that I just most recently went through, in regards to a TP-Link 16-port 10/100/1000 ethernet switch that I have.
This is my ethernet switch that I bought in 2021...
https://www.amazon.com/gp/product/B00DMLP28Y/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
However, over the course of the past month, I noticed that my internet speed was reduced to 90-95MB/s, instead of the 260MB-280mb I had before. Additionally, I also noticed that downloading games was slower on Steam as well. I originally suspected my internet modem, as well the router, so I power cycled those.
My setup goes, modem connects to router, router connects to ethernet switch, and computer connects to switch. Generally, using a wired connection is foolproof in my experience, because you don't have to deal with the BS that comes with setting up a wireless connection.
After exhausting my options 1 by 1, I finally decided to check the software side, and look at my network connection. As you can see in the picture above, that is what my connection was, when I initially set up my new switch, AKA, everything is normal and correct.
Flash forward to December 2024, that dialog box said that I was suddenly connected to 100mb/s. Now my speed discrepancy makes sense! Nobody uses 100mb/s connections anymore, as the last time that was relevant, was circa 2000's. Why did this happen? Don't know!
The solution was to power cycle the ethernet switch, cause once I did that, I was back to a 1000mb/s connection speed, then my connection came alive, and my net was no longer lagging like it was year 2003 again. Having said that, I wish my speed was as good as yours.
My internet provider upgraded our speeds finally to 500mb in year 2024, but this is the best speed I've been able to achieve with that service.
PS: Old screencap, they have since upgraded the upload speed to 23MB, but download is the same.
What matters however, is I am not locked at 100mb/s anymore, where my download speed are only 95mb/s at best. Again, I don't know why my switch malfunctioned like that. We both have TP-Link switches, so it might be a pattern, it might not be IDK.
All I know is its weird. Its nice to read a post that confirms what I've gone through. I didn't make a post on my issue, because I know how to troubleshoot my own gear, and didn't feel the need to make a tutorial thread. Anyways, glad your up and running again!
