Windows 10: [Help] Computer Wifi is Slower than Other Devices on Same Network

As the title says the Wi-Fi on my computer has been slower than in other devices in my home. Usually I get 125-200 Mbps, but recently I've only been getting around 10-70 Mbps. Other devices in my house have been getting 125-225 Mbps. I have had this problem for a couple of days now. I have not moved my computer or the router. Also, sometimes my wifi disconnects for a for a few seconds, and the 2.4 ghz network is reconnected but the 5ghz network takes longer to reappear and reconnect.Things I have tried:Resetting RouterRestarting ComputerClean BootGetting New Wifi Antennas and a USB Wifi Adapte

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One device much slower than others on home wifi - why?

I spoke with the shop once I could be in front of the computer. Yes. They too were puzzled.

What they think is that:

1. They must have goofed up the parts list for it
2. So the Dell 1397 is the adapter I have
3. And the "radio" must be getting weak or intermittent

Even though I have no Intel 7260 showing in Device Manager:





I went to the Intel site and downloaded the drivers for the 7260. Ran the exe, it ran fine, no errors, told me to restart so changes would take hold - but when I got back, there still wasn't a 7260 listed.

At that point I called the shop again and they said that it's "not uncommon" for an Intel driver install exe to just run, even if its target hardware isn't present. Sounds goofy to me, but okay.

I don't know how useful this is, but here's the ipconfig /all listing, for the wireless on my computer:





I read the guy at the shop the list of network adapters in device manager, and he agreed that none other than the 1397 were wireless adapters.

So - unless a miracle can happen and someone can show me where this alleged 7260 is - I'm going to wait for the shop to help me, or, maybe, if it's not too hard - this is an all-in-one PC and opening up even a big box scares me - put a new card in myself.

 

One device much slower than others on home wifi - why?

Well, that's interesting. *Smile

In several of your posts such as #6 & #17, a cmd window has shown the active wireless card to be the 1397. It can't be anything different, however; that doesn't suggest the 7260 card can't be sitting idle and without drivers.

Post a screenshot of the network adapters expanded, from the device manager and look for the missing wireless card or an exclamation mark next to an unknown device (possibly within an 'other devices' category.

The card is either present in the PC or not present. Maybe the PC didn't get the planned upgraded card before delivery. One step at a time and we'll sort this out. *Smile

 

One device much slower than others on home wifi - why?

Thanks as always for all the help and patience.

New router is installed. Crazy fast. Easy immediate connections for multiple phones, computers, household thermostat. All good.

The Dell 1397? Yuck. Awful.

I would say - after about three hours of playing around, the following are true:

• The router can "see" the PC as connected, and, as desired, to the 2.4 GHz band.
• PC is connected via wifi according to its wi-fi settings.
• In lots of tries, I'd say roughly 80% of the time, unable to connect to the internet; 15% just a plain unacceptable download speed (<1 Mbps); 5% a perfectly acceptable download speed (roughly 10 Mbps, which is way faster than I ever noted on that computer).

Here are some screen shots I got. This wasn't easy, as I wanted to email them from the slow computer to mine, and it was maddening even trying to get gmail to load, then to accept the screen shots.









Above are two of the "good" speedtests, which I ran from a desktop app on his computer - I had much less success with the web bases speedtest.net. The download speed isn't breathtaking, but it's a lot better than he had been getting. Note though that a majority of times it couldn't connect. And that the upload test failed both times. No results. Other times, very few, I'd run it and get an upload "speed" (?) of well under 0.5 Mbps. Note also that normally the speedtest will pick a server 10-90 miles from me. But on this computer, it picks servers 100-200 miles away.





Above is the output from the Windows WiFi Analyzer program. Not sure what's noteworthy here. It says it's an 802.11n network, and the 1397 card comes in a confusing number of flavors, but I think it's an 802.11b or g card.





Above has the results of netsh wlan show interfaces. First though, note above that, there's the last bit of a ping I'd done of a very reliable server - wsj.com I think it was. Note that the ping time was bad. And that wasn't even close to the consistently wort ping times I was getting. I'm not sure what else in this is important. The 87% signal is better than the (I think) 80% I'd obtained earlier this week with the predecessor router.





Finally, the device manager screen when I tried the device manager properties trick you'd suggested. The "allow to turn off" box was already unchecked, and above are the properties settings. There was no 802.11g setting. I did pick another "auto" setting, but this got bad results. Only tried it once, then went back to 802.11b only.

Other comments:

• Calling Spectrum for help was really disappointing. Waited on hold for 20 minutes, and the person pretty much just said "oh, if every other device is fast, it's the computer, and we can't troubleshoot that." I kept pleading my case, and she suggested some things to try, but kept saying she didn't know enough to troubleshoot.
• Using PowerShell to Disable Receive Segment Coalescing (RSC) did nothing. I forget the exact wording, but I think it said I don't have a RSC capability in that card.
• I have the slow computer and the thermostat on the 2.4 gig part of the router. Everything else is on the 5 gig part.
• Slow computer is using Channel 6, which was auto-assigned. There is only one other visible network, weak signal, and it keeps appearing and disappearing. And that network is on a different channel. I forget which. I am doubtful whether I could run some optimizer from that computer, just because internet connection and downloads are so unreliable. Could perhaps download installers to a thumb drive and copy onto that computer.
• 
  
  Above is a screen shot from the router. The "slow" computer is shown in negative image, so dark background. Note that the signal strength is middle-of-the-pack among the attached devices. More importantly (I think) note that the signal rate is a dreadful fraction of what everything else is showing.
• The router placement is on an upper shelf of a computer desk, on the second floor of my house. So probably 4-5 feet off the floor. It's right next to an external speaker, but that hasn't interfered with anyone else's wifi reception. All the other wifi devices are on the first floor, within 10 feet of the slow computer. Running speedtest.net on my phone, with the phone leaning against the slow computer, the phone will be recording 80 Mbps or well above, while the computer struggles to connect. And all the other devices in that room are getting download speeds orders of magnitude better as well. Bottom line is that router placement and device positioning are not factors here.

I am sure there is much more I could say but have forgotten or overlooked. But I hope I've provided a lot of substance to ponder.