802.11ac slow-speed issue?

[AberdeenBill]

Hello,

We have a brand-new computer for our daughter's bedroom (Asus K20C) with 802.11ac wireless and communication with our 802.11n ADSL 2.4 GHz modem/router is very slow (about 2 Mbps download speed as monitored with www.speedttest.net and it frequently 'stalls' altogether). The 'street' internet speed coming into our house (in Aberdeen, Scotland) via the phone line is (don't laugh) 16 Mbps, which is achieved by our ethernet-connected main computer, and by wireless with an old 802.11g laptop, an 802.11n laptop and indeed an iPod. When we plug the new computer into the ethernet port, it gets 16 Mbps download speed. Placing the new computer (in wireless mode) right beside the router has no effect on download speed. I have fiddled with the modem/router (which otherwise works fine although it is now quite old) in terms of channels 1, 6 and 11 etc. again without effect. Any ideas?

Many thanks,
Bill

 

[DelJo63]

Get a command prompt and enter
pathping google.com >myNet.txt
and wait for it to finish (sometimes up to 3 minutes).

Open myNet.txt, and copy/paste it into your reply

 

[AberdeenBill]

Hello, many thanks for the reply. Here is the pathping trace:


Tracing route to google.com [216.58.198.174]
over a maximum of 30 hops:
0 DESKTOP-662PET1 [192.168.1.7]
1 192.168.1.1
2 host-89-240-240-1.as13285.net [89.240.240.1]
3 host-78-151-226-51.as13285.net [78.151.226.51]
4 host-78-151-226-232.as13285.net [78.151.226.232]
5 host-78-144-12-75.as13285.net [78.144.12.75]
6 74.125.48.13
7 64.233.174.87
8 108.170.232.97
9 lhr25s10-in-f14.1e100.net [216.58.198.174]

Computing statistics for 225 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 DESKTOP-662PET1 [192.168.1.7]
0/ 100 = 0% |
1 3ms 0/ 100 = 0% 0/ 100 = 0% 192.168.1.1
0/ 100 = 0% |
2 27ms 0/ 100 = 0% 0/ 100 = 0% host-89-240-240-1.as13285.net [89.240.240.1]
0/ 100 = 0% |
3 35ms 0/ 100 = 0% 0/ 100 = 0% host-78-151-226-51.as13285.net [78.151.226.51]
0/ 100 = 0% |
4 34ms 0/ 100 = 0% 0/ 100 = 0% host-78-151-226-232.as13285.net [78.151.226.232]
0/ 100 = 0% |
5 40ms 0/ 100 = 0% 0/ 100 = 0% host-78-144-12-75.as13285.net [78.144.12.75]
0/ 100 = 0% |
6 40ms 0/ 100 = 0% 0/ 100 = 0% 74.125.48.13
0/ 100 = 0% |
7 --- 100/ 100 =100% 100/ 100 =100% 64.233.174.87
0/ 100 = 0% |
8 --- 100/ 100 =100% 100/ 100 =100% 108.170.232.97
0/ 100 = 0% |
9 42ms 0/ 100 = 0% 0/ 100 = 0% lhr25s10-in-f14.1e100.net [216.58.198.174]

Trace complete.

 

[EndlessWaves]

Get a command prompt and enter
pathping google.com >myNet.txt
and wait for it to finish (sometimes up to 3 minutes).

Open myNet.txt, and copy/paste it into your reply

It's a brand new computer with Windows 10, so the command prompt copy/pastes properly and you don't need the text file workaround

Have you grabbed the latest wi-fi drivers for the computer?

 

[AberdeenBill]

Hello Waves, thanks for the reply, yes we downloaded the latest drivers but no difference :-(

Bill

 

[DelJo63]

The PATHPING tool allows us to see the reliability of every hop in the network and yours is just fine. Zero losses everywhere so it's not in the network or your ISP. The question then becomes what's on the PC, in the browser and the AV software you are using.

 

[AberdeenBill]

Hello, the Windows 10 PC is brand new (three days old) and there isn't much loaded onto it yet. We get the same numbers for download speed with IE or Chrome as the browser. Occasionally the 'speed meter' in speedtest will flick up to a much higher speed, but it drops back to about 2 Mbps after a moment. The AV software is Microsoft defender and it doesn't show anything suspicious. The Windows Task Manager doesn't seem to show anything odd. The wireless card is a Realtek 8821AE Wireless LAN802.11ac PCI-E NIC (phew...) and the driver version is 2023.31.315.2016.

Thanks again,
Bill

 

[DelJo63]

I'm going to give you to tweeks for networking which should be the defaults on every system. You can lookup the techniques using their names as to what is being done.

1) Sackopts
2) Tcp1323

save both files to HD, and rename both by removing the trailing .TXT
you'll get a warning, but that's good - - we're making them both into files which can alter the windows registry.

Once renamed, you double click to launch each and then allow the change to run

 

[AberdeenBill]

Hello, thanks again for your help. The registry changes were made, but there is no change is download speed :-( The settings on the Wi-Fi card are as follows:

802.11d Disabled
Antenna diversity selection Auto
Beacon interval 100
Multi-channel concurrent Disabled
Preamble mode Short and long
Roaming sensitivity level Low
Wake on magic packet Enabled
Wake on pattern match Enabled
Wireless mode Auto (we tried changing this to 802.11b/g/n but it had no effect)

Next step is to take the computer to a friend's house and see how it behaves there.

Thanks again,
Bill

 

[DelJo63]

Did you look for newer firmware for the 802.11n ADSL 2.4 GHz

 

[AberdeenBill]

Downloading it now (version 2023.34.430.2016)

 

[DelJo63]

Bump; what's your current status??