Windows 10: WiFi speed degraded but ethernet is good

I have 1Gb internet and multiple devices. Every device is getting nearly 500Mbps on Wifi while Dell Precision 7530 stopped seeing this speed and now tests only 20-60Mbps Hard wired on ethernet it tests at 800Mbps. Other devices such as HP and MSF laptops, and phones still test 500Mbps.

I tried to run all the troubleshooters with no issues, rebooted internet on my end and from provider, still no luck. I assume the issue is somewhere with Dell's build in network controller.

Any help is appreciated. Thanks.

:)

 

Abysmal wifi speed on Windows 10

I've checked that drivers are up to date. I have 2 different wifi cards and 1 usb wifi adapter. I tried just about everything. Reception on other devices is fine, including a device located in the same spot as computer. It's strictly the computer after updating
to Windows 10. My wifi speed starts fine but will quickly go down to about 0.1 to 2 mbps (instead of 15+) Nothing seems to fix this, other than a Network reset, after which speed is fine again but quickly degrades.

I'm on Windows 10 Pro, v1709 Build 16299.371

Summary:

• No program is hogging the connection
• Speed degrades on multiple wifi adapter simultaneously
• Can only be fixed by a Network reset
• Steadily degrades over time after a reset
• No wifi problems on other devices, even in same location
  
• Drivers up to date
• Speed degrades to 0.1-2 mbps with short, temporary bursts to full speed

 

wifi speed degradation in win 10 laptop

I am more confused now. I have 100/100 Mbps fios. the laptop achieves a speed of 101/118 when it is restarted. that to me means my settings are proper. Within 24 hours the upload speed drops to near 35-40 Mbps. At that point a simple restart of the laptop
brings the speed back to 100/118 Mbps range. That to me suggests that some processes within the computer are limiting the upload speed. all other computers are working at the specified FIOS speeds. I have tried using Ethernet as well as wifi.

 

WiFi speed degraded, Ethernet fine

Hi Saltgrass,

I'm not running Killer Wireless Control Center. I had the machine shut down completely and the battery out when I replaced the wireless adapter. The link speed I'm seeing on my laptop (the degraded one) is 292/292 (Mbps). My wife's laptop - an older Dell
also running Windows 10 and on the same network is showing 866/433 (Mbps).