Member Avatar for Burton96hd

Hi, I have a big problem with slow Internet on one computer. This problem started to occur about 2 weeks ago now.

The problem I am having is that I am getting really slow speeds however it is only on my main computer. Every device in the house Is run wirelessly. Eg. Running a speedtest on my iPad, gives me a 1.5mg/s download which is the usual speed for my Internet as i live in the countryside. However my Pc gives me speed test results of 0.01 download. Both my iPad and Pc are in the same position from the router. The weird thing is that my Pc was getting normal speeds 2 weeks ago and now this happens. Sometimes the speed will go back up on my Pc but only for 10-15 mins and then drop again.

I have run loads of virus scans and nothing has shown up. I have restarted routers and updated the drivers of my computer. I have no explanation for it because it was fine 2 weeks ago. I have tried to think that it is the ISP, however it is only running slow on my Pc. My Pc is very good and isn't any old rubbish. I would appreciate any helps as I am stuck on what to do

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Intermittent, PC‑only wireless slowness usually points to one of three things: the PC’s wireless stack or adapter, local RF interference or router settings, or a background process on the machine. As noted, a wired connection is the single best way to separate “wireless problem” from “PC problem.” If a cable cannot be run, the following quick, repeatable diagnostics will produce evidence that narrows the cause.

Run continuous pings to the router and to an external IP, then capture a traceroute/pathping to reveal packet loss or routing issues. Also check the adapter signal and link rate with the built‑in WLAN tool. Example commands (Windows CMD):

ping -n 100 192.168.1.1 > C:\Temp\ping_router.txt
ping -n 100 8.8.8.8 > C:\Temp\ping_outside.txt
tracert 8.8.8.8
pathping 8.8.8.8
netsh wlan show interfaces

Collect process‑level evidence: Resource Monitor (Resmon) shows which process is using the link; netstat -abno can reveal unexpected outbound connections. Check Device Manager → Network adapter → Power Management and the wireless adapter advanced properties (disable any aggressive power saving, LSO or offload features). Note whether slow periods line up with scheduled tasks (antivirus scans, backups, cloud sync) or with other house devices (microwave, cordless phone).

If software/hardware state is suspected, reset the Windows network stack and reboot, then retest. Useful commands:

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns

If problems persist after these steps, consider a temporary USB Wi‑Fi dongle or a Linux live USB to rule out adapter/OS faults, update router firmware, set a fixed 20 MHz channel (1/6/11 on 2.4 GHz) to reduce interference, and back up router settings before making changes. These measurements and logs will make the root cause obvious and guide the next fix.

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Member Avatar for JorgeM

Are you able to identify some "event" that occurred before the PC's internet speed became slow? any new software installed, drivers, config change? If so, are you able to restore the PC to the point in time prior to this slowness?

There is nothing in Windows itself that we can have you go look at to "check" or "select" something to make the Internet go faster.

Do you notice when looking at the properties of your network connection if there is activity on the interface even if you arent actively on the network?

What happens if you plug this computer into the wired network? Or at least wire it into your Internet connection to see if its a problem with the PC, wireless network interface or both?

Member Avatar for Burton96hd

At the moment the internet speed is back up. I did nothing what so ever and it just went back up. This is why i can't put it down to some program messing it up. However i am sure that it will go slow again anytime soon. I can't make it a wired connection as it is so far from the router.

Member Avatar for JorgeM

I can't make it a wired connection as it is so far from the router.

You'll need to be able to reproduce the issue and find ways to mitigate the issue to be sure you find the issue. I think the wired suggestion is valid. If its too far from the router, see if you can get a longer ethernet cable.

If the problem continues to be random, I'm not sure what else to advise. When troubleshooting, the key is to identify the actual problem. you'll need to make simple changes to try and identify the culprit.

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