Wi-Fi speed tops out at 3.5 Mbps

[Dan100785]

Hello everyone,

I'm not exactly sure what is going on but my desktop PC does not go above 3.5 Mbps

The odd thing is the first I thought it might be traffic that might be causing that, well there is no one else connected to the network other than myself. I also tested my wife's PC and she was getting 90 Mbps which is normal for us. Next I thought it was my WiFi adapter, so I swapped mine out with hers and she was still getting the same 90 Mbps with my adapter now, but same thing for me...3.5Mbps tops (even though I was testing hers out on my PC)

I checked the "Connection" tab (Control Panel -->Network Sharing and Center-->Connections (My 5GHz network) I'm getting 780Mbps (at least that's what it says). I tried uninstalling the drivers for BOTH WiFi adapters on my PC and still nothing.

One interesting thing though is that when I turn my VPN on the download speed goes up to 6Mbps, not much but its a difference...Upload is the same with or without VPN at 12Mbps

My PC specs are as follows

Windows 10 (64 Bit)

Intel i7 6800K
Corsair 32 GB DDR4 RAM
Samsung 960 PRO M.20 512GB SSD
Crucial MX200 1TB SSD
Edimax AC1750 WiFi adapter OR TrendNET AC1900 (Model) TEW-809UB
Nvidia GTX 1080
EVGA Supernova T2 1000 Watt PS
Gigabyte G1 Gaming X-99 ULTRA GAMING Motherboard
Corsair H80i V2 CPU Liquid Cooler

(I'm sure I put too many products that might not have any issue with my wifi issues but you never know)

Anyways thanks for reading this thread, any help would be REALLY appreciated. Last thing I wanted to say, was that about 2-3 days ago I was doing fine with downloading, I was getting around 9.8 Mbps download speed and now its just literally nothing...please help!

 

[ComputerGeek21]

lets be clear, your not mistaking megaibits for megabytes are you? for every MegaByte there are alittle more then 8 Megabits
MB = MegaBytes = 8 Mb
Mb = Megabits

 

[Dan100785]

lets be clear, your not mistaking megaibits for megabytes are you? for every MegaByte there are alittle more then 8 Megabits
MB = MegaBytes = 8 Mb
Mb = Megabits

Correct, it is Mbps, MB is a typo, thanks for catching that.

 

[ComputerGeek21]

strange, what did you use to test the speeds and did you use the correct server?

 

[Dan100785]

strange, what did you use to test the speeds and did you use the correct server?

I used speedtest.net on both PC's. As far as the correct server...I just let it pick the closest one to me.

I even went into regedit and changed my port, thinking that my ISP might be throttling my speed, but then again they would throttle my whole connection not just one PC that is on a LAN right?

 

[ComputerGeek21]

real quick could you type "speed test" in google and use the one provided?

 

[Dan100785]

real quick could you type "speed test" in google and use the one provided?

http://www.speedtest.net

It's still showing 3.5 Mbps

 

[ComputerGeek21]

that just took me to the site anyway connect to your router via ethernet

 

[Dan100785]

At the moment I can not do that because it is in our grandparents side of the house. However, if you want to tell me what to look into I can do that sometime tomorrow?

 

[ComputerGeek21]

not really sure what to tell you, all i can think of is updating your wireless divers and making a wired connection from you computer to the router

 

[Rdslw]

https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&hl=en

grab this and walk around. Check if you have any better channel to use, range problems or maybe its locking you at a standard speeds for some reason ?
if you're using 5Ghz then it can go at a/n/ac speeds.
check your wifi card for standards it can run and negotiation
https://iperf.fr/
will help you to see if its ISP or your wifi card.
just run it on 2 local machines to benchmark wifi.

for speed-test use this:
https://fast.com/
smaller and reliable.

 

[ComputerGeek21]

it can't be the speed test, he said it was working just fine a few days ago and i don't think that there could be that much interference to cause this bad a speed. it must be drivers or hardware failure.

quick question, you havent moved your computer recently or switched frequency recently?
5GHz is good for speed but bad for range
2.4Ghz is good for range but bad for speed

 

[Rdslw]

I know speedtest is fine, I use it a lot too, but fast.com is fast to type and starts instantly. You can run it and walk around to see if there is any environmental (like metal furniture) problem both are ok, but fast.com is just faster answer.

 

[Dan100785]

not really sure what to tell you, all i can think of is updating your wireless divers and making a wired connection from you computer to the router

I will try doing that today, (hardwire connection to the router) if I connect and the speed is still slow what then? I already have the latest version of the wifi adapter on my pc

 

[Dan100785]

https://play.google.com/store/apps/details?id=com.farproc.wifi.analyzer&hl=en

grab this and walk around. Check if you have any better channel to use, range problems or maybe its locking you at a standard speeds for some reason ?
if you're using 5Ghz then it can go at a/n/ac speeds.
check your wifi card for standards it can run and negotiation
https://iperf.fr/
will help you to see if its ISP or your wifi card.
just run it on 2 local machines to benchmark wifi.


So I'm not quit sure what you want me to do there with the https://iperf.fr/ website. I've never been/used that before so maybe you could guide me a little, thanks!

A far as the speed, it's the same however I just wasted 2.4 GHz and now I'm getting my average of about 80 Mbps. So it looks like the problem is 5 GHz but I just don't understand why? It was working fine a few days ago, maybe it could be the firmware? I am upgrading it as we speak, however if it's not what would you suggest? I should also mention that my router (TP Link Archer C7 AC 1750 Wireless Dual Band Gigabit Router) is bridged to my Xfinity gateway. It's been this way for the last two years and I have never had any problems with speed. Oddly enough I can get more speed from my router compared to the default Xfinity gateway, not sure if that has something to do with it being bridged but I thought that might be worth mentioning.

for speed-test use this:
https://fast.com/
smaller and reliable.

 

[Dan100785]

it can't be the speed test, he said it was working just fine a few days ago and i don't think that there could be that much interference to cause this bad a speed. it must be drivers or hardware failure.

quick question, you havent moved your computer recently or switched frequency recently?
5GHz is good for speed but bad for range
2.4Ghz is good for range but bad for speed

No my computer has been in the same place for the last nine months since I've built it. As I just replied to Rdslw, I just found out that switching to 2.4 GHz actually brought my speed up dramatically to 80 Mbps I had also mentioned to him that my router is bridge to my Xfinity gateway for the last two years and I've never had a problem. I've always use 5 GHz on my end it never had an issue. I am updating the firmware as we speak hopefully that will help I'll keep you updated, if you can think of anything in the meantime let me know.

 

[Dan100785]

So I managed to finally update the firmware of my router. As far as 5 GHz hardly nothing has changed, I get really good spikes of speeds up to 80 Mbps but it's not consistent. It mostly hovers between 2.5 Mbps and 5 Mbps. I'd say it's like one or two out of 10 times that I tested I get 80 Mbps, the rest of the time it's really slow. But surprisingly not on 2.4 GHz it usually hovers anywhere between 32Mbps-80Mbps.

I checked all the settings of my router since it reset everything after I updated the firmware and it looks like all my settings are back to normal. Meaning that my router is successfully bridge to the gateway, otherwise I don't think I would be getting any connection at all is that correct?

The other strange thing though is that on my phone and any other device it's at full speed in fact it's even a little bit faster now at 126 Mbps after updating the firmware. The thing is though that it's consistent on all my other devices. The only thing I don't understand is why is it like that on my computer? Even with two different Wi-Fi adapter cards, when it works on my other computer at full speed why wouldn't it work on mine? Would it have anything to do with TCP/IP settings? Thing is though I never changed any of those... this all just came on out of the blue.

Any other help would be greatly appreciated, I'm pulling my hair out at this point

 

[ComputerGeek21]

i tihnk you might have a virus, try doing a virus scan on your computer please

 

[ComputerGeek21]

i don't think you would have this but would you happen to have something call "AMD quickstream"? if so uninstall it

 

[Dan100785]

i don't think you would have this but would you happen to have something call "AMD quickstream"? if so uninstall it

No virus and no AMD quickstream. I'm restoring a back up from before all this happened. But maybe it might work. If not then I guess it could be the router. But then again I don't know because other devices work well on my router. I just don't know anymore. Then again I guess I can do a clean wipe and reload.

 

[Dan100785]

Well I reformatted my Computer, and now it looks like it's back to normal. The speed is at a consistent 110 Mbps. I'm not sure what did it but that fixed it. Hopefully it stays that way. I wonder if the Windows 10 Creators update could of caused any malfunction in hardware. Anyway I'll put up an update after a few days. Thank you everyone for all your help! I appreciate it.

 

[Dan100785]

So it looks like after some trial and error, I think I finally narrow down the problem. I updated my windows 10 to the new creators update, on my 5 GHz speeds from my Wi-Fi adapters do not work faster than 5 Mbps. I know this for a fact because right before I updated I created a back up and I tested the speed and it was at 120 Mbps now after the back up I'm barely reaching 5 Mbps anybody ever have this problem?