Solved the issue! Turns out, after I noticed the issue occurred both wireless and wired, I started checking my antivirus program (Avast) and found it was causing the issue. I uninstalled it...

@woozle Thanks for the suggestion. I will make that change in the channel. I did try several different channels without any improvement but what you are saying makes perfect sense. The XPS does not...

@woozle The issue really only affects downloads and not uploads as you can see by the latest speed test done just a few minutes ago. Inspiron on the right, XPS on left.

I'll mention also (in case it makes a difference) that the Inspiron is running Win 10 Pro whereas the XPS is running Win 11 Pro.

@woozle Here's the Inspiron: SSID: Protocol: Wi-Fi 6 (802.11ax) Security type: WPA2-Personal Network band: 5 GHz Network channel: 157 Link speed (Receive/Transmit): 1201/817 (Mbps) IPv6 address:...

@woozle Heres the XPS: SSID: Protocol: Wi-Fi 6 (802.11ax) Security type: WPA2-Personal Manufacturer: Intel Corporation Description: Intel(R) Wi-Fi 6E AX211 160MHz Driver version: 22.170.2.1 Network...