Question WiFi - random slowdown when browsing + ping spikes / packet loss? over different wifi networks

May 12, 2019

I have slowdown when browsing the web (google chrome - dell xps 15 - windows 10) occurs every few hours, lasts about 15 min.

Blue circle in chrome just seems to spin and every pages takes 2-3 min to load if at all.

Ping seems to go from 20 to 200/400+ during this time and sometimes not even ping and return an error, this ping gradually returns to normal over a 5-10 minute period then the internet works fine again.

Happens over different wifi networks with my laptop, other laptops / tv / mobile are all unaffected on the same network when this issue is happening.

I have tried virus/malware scans, using different browsers, disabling firewall etc.



Could be either Chrome or perhaps the wireless network adapter drivers on the laptop.

Update your post to include make, model, and hardware specs for the laptop.

Take a look in Reliability History/Manager. Try to find any error codes, warnings, or even information events that correspond with the times of the slowdowns.

You could also use Task Manager/Resource Monitor to see if some application or bottleneck is occurring during slowdowns.

If nothing found or noted then reinstall Chrome.

If the slowdowns continue then go the wireless adapter's manufacturer's website. Download, reinstall, and reconfigure the driver as applicable to your network.
May 12, 2019
See PC specs below

  • Chrome has been reinstalled still occurs (happens in firefox and internet explorer as well)
  • Killer wireless drivers have been updated and reinstalled no change
  • nothing seems to be occuring on reliability history other than this event that happens everyday and doesn't correspond with slowdowns necessarily on the timings >
Faulting application name: backgroundTaskHost.exe, version: 10.0.17763.1, time stamp: 0x6fe3727f
Faulting module name: twinapi.appcore.dll, version: 10.0.17763.292, time stamp: 0x270a22eb
Exception code: 0xc000027b
Fault offset: 0x00000000000bd588
Faulting process id: 0x1b78
Faulting application start time: 0x01d4fa0957db56ff
Faulting application path: C:\WINDOWS\system32\backgroundTaskHost.exe
Faulting module path: C:\Windows\System32\twinapi.appcore.dll
Report Id: 23da7fba-9aa2-443a-b0c5-18798439e2c4
Faulting package full name: DellInc.DellSupportAssistforPCs_3.2.3.0_x64__htrsf667h5kn2
Faulting package-relative application ID: App


Operating System: Windows 10 Home 64-bit (10.0, Build 17763) (17763.rs5_release.180914-1434)
Language: English (Regional Setting: English)
System Manufacturer: Dell Inc.
System Model: XPS 15 9560
BIOS: 1.10.1 (type: UEFI)
Processor: Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 CPUs), ~2.8GHz
Memory: 16384MB RAM
Available OS Memory: 16236MB RAM
Page File: 10672MB used, 8379MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 120 DPI (125 percent)
System DPI Setting: 120 DPI (125 percent)
DWM DPI Scaling: Disabled
Miracast: Available, with HDCP
Microsoft Graphics Hybrid: Supported
DxDiag Version: 10.00.17763.0001 64bit Unicode