System: HP 290 G1 Microtower PC Processor Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz 3.40 GHz Installed RAM 8.00 GB (7.89 GB usable) Device ID EA9D01FF-A2BC-4AF7-99C6-36A4BAF78CC2 Product ID 00330-50826-60474-AAOEM System type 64-bit operating system, x64-based processor Edition Windows 10 Pro Version 21H1 Installed on ‎12/‎07/‎2021 OS build 19043.1415 Experience Windows Feature Experience Pack 120.2212.3920.0 Wifi speed drops to 0Kbps every 10 seconds or so for about 2 seconds both send and receive I have two identical USB Wifi adapters and it’s the same for both adapters but just when in this PC. Resource monitor shows the same issue What I have tried: Testing with data from the web or transferring data from my NAS on the same subnet. Both have the issue so it’s not an issue with broadband. Swapped to another identical 802.11ac USB network adaptor – they both work fine in another machine – so I don’t think the adapter is the issue. Switch to another brand adapter (802.11n only) – works fine Another PC with this adapter in the same room has no problems and is on same wifi 5GHz channel so that rules out the Wifi signal having problems. Same wifi/network setup, same driver, same update version of windows. Tried manual DNS configuration to 8.8.8.8 and 8.8.4.4 Latest update to router Latest update to Windows Latest f/w for adapters Latest BIOS for PC Turned off adapter power management Tried latest manufacturer and latest MS drivers for adapter Different USB ports tried both 2.0 and 3.0 Airplane mode on/off Router reboot (full power off) PC reboot (full power off) “Forget” and reattach to network Uninstalled VPN Reboot with all start-up programs and all non-Microsoft services disabled Link speed to router checked = 585Mbps Set the adapter as the only connection on the 5GHz channel Set the adapter as the only connection on the 2.4GHz channel Tried Static and DHCP IPV4 addressing Network RESET in settings Network troubleshooter Network Adapter Troubleshooter Incoming Connections troubleshooter Internet Connections troubleshooter HP Network Check Tried switching off local firewall Tried switching off router firewall HP Hardware diagnostics 1.8.0.0 Hardware properties: SSID: xxxxxxxx Protocol: Wi-Fi 5 (802.11ac) Security type: WPA2-Personal Network band: 5 GHz Network channel: 60 Link speed (Receive/Transmit): 585/585 (Mbps) Link-local IPv6 address: xxxx::xxxx:xxxx:xxxx:xxxxxx IPv6 DNS servers: xxxx::xxxx:xxxx:xxxx:xxxxxx IPv4 address: 192.168.1.83 IPv4 DNS servers: 192.168.1.1 DNS suffix search list: broadband Manufacturer: Realtek Semiconductor Corp. Description: Realtek 8812BU Wireless LAN 802.11ac USB NIC Driver version: 1030.38.712.2019 Physical address (MAC): 1C-BF-CE-7D-75-D4 I have spent so many hours on this - it's driving me nuts. Any input or suggestions gratefully received. Thanks in advance Nick

Hello Nick, There are lots of possible next steps, but rather than spending effort weighing the merits of each, let's just start with a simple test: Issue the command netsh trace start report=disabled overwrite=yes provider=Microsoft-Windows-WLAN-AutoConfig tracefile=why.etl . Wait 3 or so minutes. Issue the command netsh trace stop . Issue the command netsh trace convert why.etl why.txt There should be some readable information in why.txt. Looking directly at why.etl using my tools and filtering some junk, I see on my system: The events highlighted in green happened when I performed a search in Google - I have enabled Google to request my location when performing searches. I think that we will see a scan being initiated every 10 seconds on your PC and, if so, we will then have to search for the client that requested the scan. Gary

Hi Gary thanks for this. I was up at 10am and repaired my car and then the wife said that we were going to a lunch party that I wasn't aware of. Still out. hopefully back in an hour or so. So very sorry for the unexpected radio silence. Your message above sounds very promising. However, previously, when doing a minimal start up, I would have thought that with no start up programs or non MS services this would also have caused normal throughput. Excited to try your solution as soon as I get home. Incidentally, the shadow maker installed itself without me being aware when I installed the partition tool. I will update you as soon as I can test when I get home. Nick :-)

Hi Gary YES I just unistalled Minitool shadowmaker and suddenly everything was slick again. I will write to minitool and point them to this thread. Did you investigations suggest why just this network adapter was affected by the wlanscan call? Also a question comes up as to why the minimal startup didn't stop SMMonitor from running. I will mark the thread solved. I am more than happy to reinstall shadowmaker to conduct more research (and let you remote access my PC) if you are keen to pursue. I am very conscious of the fact that you have put a lot of effort into solving this whilst I have had a lot of other time commitments.... I am very grateful for your time and have enjoyed the process despite not being able to contribute much from my side. It's people like you who are willing to give their time to others for no reward that have a very positive effect on society. Thank you Nick

Hi Gary, I'm fine with that! Well, it's been fun and my PC is zipping along and I'm really glad we .... really YOU, found the solution and that our trail of messages might help others It's been a pleasure and thank you again. Wishing you all the best for a better 2022 Nick

Network throughput drops to 0Kbps (send and recieve) every 8 seconds, adapter fine on other PCs

Nick Brown 26

System:
HP 290 G1 Microtower PC
Processor Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz 3.40 GHz
Installed RAM 8.00 GB (7.89 GB usable)
Device ID EA9D01FF-A2BC-4AF7-99C6-36A4BAF78CC2
Product ID 00330-50826-60474-AAOEM
System type 64-bit operating system, x64-based processor
Edition Windows 10 Pro
Version 21H1
Installed on ‎12/‎07/‎2021
OS build 19043.1415
Experience Windows Feature Experience Pack 120.2212.3920.0

Wifi speed drops to 0Kbps every 10 seconds or so for about 2 seconds both send and receive
I have two identical USB Wifi adapters and it’s the same for both adapters but just when in this PC.

Resource monitor shows the same issue
What I have tried:

Testing with data from the web or transferring data from my NAS on the same subnet. Both have the issue so it’s not an issue with broadband.
Swapped to another identical 802.11ac USB network adaptor – they both work fine in another machine – so I don’t think the adapter is the issue.
Switch to another brand adapter (802.11n only) – works fine
Another PC with this adapter in the same room has no problems and is on same wifi 5GHz channel so that rules out the Wifi signal having problems. Same wifi/network setup, same driver, same update version of windows.
Tried manual DNS configuration to 8.8.8.8 and 8.8.4.4
Latest update to router
Latest update to Windows
Latest f/w for adapters
Latest BIOS for PC
Turned off adapter power management
Tried latest manufacturer and latest MS drivers for adapter
Different USB ports tried both 2.0 and 3.0
Airplane mode on/off
Router reboot (full power off)
PC reboot (full power off)
“Forget” and reattach to network
Uninstalled VPN
Reboot with all start-up programs and all non-Microsoft services disabled
Link speed to router checked = 585Mbps
Set the adapter as the only connection on the 5GHz channel
Set the adapter as the only connection on the 2.4GHz channel
Tried Static and DHCP IPV4 addressing
Network RESET in settings
Network troubleshooter
Network Adapter Troubleshooter
Incoming Connections troubleshooter
Internet Connections troubleshooter
HP Network Check
Tried switching off local firewall
Tried switching off router firewall
HP Hardware diagnostics 1.8.0.0

Hardware properties:
SSID: xxxxxxxx
Protocol: Wi-Fi 5 (802.11ac)
Security type: WPA2-Personal
Network band: 5 GHz
Network channel: 60
Link speed (Receive/Transmit): 585/585 (Mbps)
Link-local IPv6 address: xxxx::xxxx:xxxx:xxxx:xxxxxx
IPv6 DNS servers: xxxx::xxxx:xxxx:xxxx:xxxxxx
IPv4 address: 192.168.1.83
IPv4 DNS servers: 192.168.1.1
DNS suffix search list: broadband
Manufacturer: Realtek Semiconductor Corp.
Description: Realtek 8812BU Wireless LAN 802.11ac USB NIC
Driver version: 1030.38.712.2019
Physical address (MAC): 1C-BF-CE-7D-75-D4

I have spent so many hours on this - it's driving me nuts. Any input or suggestions gratefully received.

Thanks in advance

Nick

Gary Nebbett 6,091 Reputation points

2021-12-27T12:37:45.583+00:00

Hello @Nick Brown ,

Have you looked at the following posting?

https://learn.microsoft.com/en-us/answers/questions/654938/internet-speed-throttled-to-135mb.html

The problem, its resolution and the type of tracing needed to understand the problem will be different, but the poster initially tried an equally long list of measures and tracing was a useful step in the subsequent troubleshooting.

If you are willing to share trace data, let us know.

Gary

Accepted answer

Gary Nebbett 6,091 Reputation points

2022-01-03T09:05:42.89+00:00
Hello Nick,

There are lots of possible next steps, but rather than spending effort weighing the merits of each, let's just start with a simple test:

Issue the command netsh trace start report=disabled overwrite=yes provider=Microsoft-Windows-WLAN-AutoConfig tracefile=why.etl.

Wait 3 or so minutes.

Issue the command netsh trace stop.

Issue the command netsh trace convert why.etl why.txt

There should be some readable information in why.txt.

Looking directly at why.etl using my tools and filtering some junk, I see on my system:

The events highlighted in green happened when I performed a search in Google - I have enabled Google to request my location when performing searches.

I think that we will see a scan being initiated every 10 seconds on your PC and, if so, we will then have to search for the client that requested the scan.

Gary
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1 person found this answer helpful.
Gary Nebbett 6,091 Reputation points

2022-01-03T14:20:38.03+00:00

Hello Nick,

I think that the application "C:\Program Files\MiniTool ShadowMaker\SMMonitor.exe" is calling WlanScan every 10 seconds.

My guess is that the USB network adapter "pauses" transmits/receives whenever a scan is performed on all of your systems, but on the other systems there is no process regularly calling WlanScan.

A further guess would be that if you suspend or stop SMMonitor and perform a network performance test, you would see good continuous throughput.

Gary

phut phut 1 Reputation point

2022-12-02T01:54:01.737+00:00

Gary you beautiful soul.

This has been driving me insane - I WFH using a citrix remote desktop and was convinced it was Citrix screwing with my wifi adapter as it so likes to screw with everything else.

I read your solution, started running the trace and then remember I'd seen a stupid little dot in the taskbar saying microsoft were using my location.

Turned location off, WiFi issues gone isntantly.

Anyone googling this in future - switch of location services and you'll probably be fine!

ethan1k 0 Reputation points

2023-12-12T01:03:52.2333333+00:00

I've been having very similar issues, however I am just a 16 year old kid and do not understand much technology slang, besides what I've learnt in grade 10 CAT classes. Somebody please help me, this is driving me crazy.
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24 additional answers

Nick Brown 26 Reputation points

2022-01-03T17:01:31.953+00:00

Hi Gary

thanks for this. I was up at 10am and repaired my car and then the wife said that we were going to a lunch party that I wasn't aware of. Still out. hopefully back in an hour or so. So very sorry for the unexpected radio silence.
Your message above sounds very promising. However, previously, when doing a minimal start up, I would have thought that with no start up programs or non MS services this would also have caused normal throughput.

Excited to try your solution as soon as I get home.

Incidentally, the shadow maker installed itself without me being aware when I installed the partition tool.

I will update you as soon as I can test when I get home.

Nick :-)
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Nick Brown 26 Reputation points

2022-01-03T17:01:32.047+00:00

Hi Gary

thanks for this. I was up at 10am and repaired my car and then the wife said that we were going to a lunch party that I wasn't aware of. Still out. hopefully back in an hour or so. So very sorry for the unexpected radio silence.
Your message above sounds very promising. However, previously, when doing a minimal start up, I would have thought that with no start up programs or non MS services this would also have caused normal throughput.

Excited to try your solution as soon as I get home.

Incidentally, the shadow maker installed itself without me being aware when I installed the partition tool.

I will update you as soon as I can test when I get home.

Nick :-)
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Gary Nebbett 6,091 Reputation points

2022-01-03T18:09:35.427+00:00

Hello Nick,

The Microsoft Q & A website has lots of weaknesses, so I don't take all of its statistics at face value, but it says that this thread has 23 answers and 1 comment - all between the two of us (I think that it is actually more than that), so trust/respect has been built up. I am someone who feels tired when we put the clocks forward, so I have plenty of respect for your work- load/schedule. Test when you can and let me know the results.

Gary
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Nick Brown 26 Reputation points

2022-01-03T18:07:33.97+00:00

Hi Gary

YES

I just unistalled Minitool shadowmaker and suddenly everything was slick again.

I will write to minitool and point them to this thread.

Did you investigations suggest why just this network adapter was affected by the wlanscan call?

Also a question comes up as to why the minimal startup didn't stop SMMonitor from running.

I will mark the thread solved.

I am more than happy to reinstall shadowmaker to conduct more research (and let you remote access my PC) if you are keen to pursue.

I am very conscious of the fact that you have put a lot of effort into solving this whilst I have had a lot of other time commitments.... I am very grateful for your time and have enjoyed the process despite not being able to contribute much from my side.

It's people like you who are willing to give their time to others for no reward that have a very positive effect on society.

Thank you

Nick
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Gary Nebbett 6,091 Reputation points

2022-01-03T19:58:45.55+00:00

Hello Nick,

This is all just fun for me - I am retired and IT problem solving is a hobby and pleasure rather than being driven by altruistic motivation. This problem was right in the "sweet spot" of my troubleshooting skills.

At the end of the process, it is difficult to identify any of the behaviour as "buggy". The "pauses" introduced by the network adapter did not cause any network connections to be disconnected or "fail" - some things were just slower than expected.

Equally, if WiFi scanning can be described as "non-intrusive", it is difficult to blame applications for using it liberally.

There is not much more that we can research; the behaviour of a wireless device, with potentially multiple antennas, complex digital signal processing and a 9MB device driver, when scanning multiple frequencies and potentially sending and receiving on another frequency is not something we are ever likely to fully understand.

Gary

ethan1k 0 Reputation points

2023-12-12T04:38:28.8166667+00:00

Gary please help me!

Gary Nebbett 6,091 Reputation points

2023-12-12T12:46:39.9533333+00:00

Hello @ethan1k

You could try the following:

In a command window, running as administrator, issue the command pktmon start --capture --comp nics --flags 0x14 --trace -p Microsoft-Windows-TCPIP -k 0x200500000000 -l 16 -p Microsoft-Windows-WFP -k 0x3FFFFFFFFFFF -l 6 -p Microsoft-Windows-WLAN-AutoConfig -k 0x1FFFFFFFFFFFF -l 6 -p Microsoft-Windows-Kernel-Process -k 0x10 --file-name why.etl

Issue the ping command as you have done before so that 3 or 4 of the long reply times appear.

Stop the ping command.

Issue the command pktmon stop

Make the file why.etl available on some file sharing service (e.g. OneDrive, Google Drive, Dropbox, etc.) and post a link here.

The pktmon trace is not guaranteed to reveal the cause of the problem but it is a good starting point - let's see what it reveals.

Gary

ethan1k 0 Reputation points

2023-12-12T17:31:42.0933333+00:00

Hey Gary, I can't even describe how happy I was when I saw that you had replied.

I have done what you said and currently have the Command Prompt open, however I can't figure out how to save this as "file why.etl" if you catch my drift. Anyway could you possibly teach me to do that as well? Sorry once again for the slowness.

Ethan

Gary Nebbett 6,091 Reputation points

2023-12-12T18:29:23.17+00:00

Hello @ethan1k

Copy and paste the text "pktmon start --capture --comp nics --flags 0x14 --trace -p Microsoft-Windows-TCPIP -k 0x200500000000 -l 16 -p Microsoft-Windows-WFP -k 0x3FFFFFFFFFFF -l 6 -p Microsoft-Windows-WLAN-AutoConfig -k 0x1FFFFFFFFFFFF -l 6 -p Microsoft-Windows-Kernel-Process -k 0x10 --file-name why.etl" into the command window (followed by the "return"/"enter" key).

Now start the "ping" command with a large "-n" count (say 50).

Finally copy and paste (or type) the text "pktmon stop" into the command window. When that command has finished, there should be quite a large file named "why.etl" in the current directory.

Gary

ethan1k 0 Reputation points

2023-12-12T22:30:32.28+00:00

Hey Gary

Did everything and it worked, but the only "why.etl" file I have opens in Internet Explorer and doesn't let me open it. Was going to send it regardless but it also won't upload to Google Drive or OneDrive when other files will. Is it possible I send you a screenshot of the CMD (On OneDrive or something) so you can see yourself. Maybe I'm being stupid but I'm pretty certain I'm not. I also opened the why.etl file in Microsoft Event Viewer if you would like me to send that instead maybe, as that allows me to send it.

Ethan

ethan1k 0 Reputation points

2023-12-13T02:14:13.2+00:00

GARY I cannot describe how excited I am to share this with you,

I HAVE SOLVED THE PROBLEM. Not sure if this fix is temporary or permanent, and I'm also very intrigued into what the explanation is behind it (if you can maybe explain), but I'm so so so glad it is over.

I messed around with the Adapter setting (Bandwidth and iEEET), basically just changed it to 20MHz only, and it seems to have worked. Once again, am so pleased.

Ethan

Gary Nebbett 6,091 Reputation points

2023-12-13T10:51:09.4033333+00:00

Hello @ethan1k

Setting the WiFi channel width to 20 MHz could improve signal reception, but I don't think that it would explain the pattern of a regular delayed response at intervals of 10 to 12 seconds. Let's see whether the improvement remains.

Gary

Debiš 0 Reputation points

2024-11-16T00:34:01.77+00:00

hello @Gary Nebbett

its that time of the year again, another person with the same problem. This time its me. I feel like the best thing I can do is try to ask you for help. I have the why.etl file but I dont know what to do next so I would greatly appreciate your help. https://mega.nz/file/ttARmLaR#zMisMHUI5z1qrXV5oyO4WWLGVXk7F1BrtjL5w65Dh7Q

Gary Nebbett 6,091 Reputation points

2024-11-19T15:01:02.62+00:00

Hello @Debiš

The trace data does not seem to show the type of behaviour described in the thread title (mostly successful data transfer with regular short interruptions) - it just seems to show no network activity for over 60 seconds.

Can you describe in words the problem that you are seeing?

Gary

Debiš 0 Reputation points

2024-11-19T15:42:39.2233333+00:00

hello @Gary Nebbett

first of all thank you for even responding. its incredibly similair to the problem desrcibed here, network works perfectly for 10 seconds then, drops to 0 for two or so seconds. if these interruptions are not caused by the same thing, do you know what might be causing them? I tried all the usual fixes yet they dont work.

Gary Nebbett 6,091 Reputation points

2024-11-20T10:21:14.9333333+00:00

Hello @Debiš

Let's try and establish a "big picture" understanding of the problem.

Firstly, continuously monitor network throughput with Task Manager or similar (like the first image in this thread) so that you know when the network traffic is interrupted.

Ideally, data should be being sent or received at maximum speed (e.g. downloading or uploading a large file or using a network speed test such as Speedtest by Ookla); there are natural pauses when streaming audio/video material (when the player has buffered enough data for the next few seconds), so this is less well suited to this type of test.

I would suggest the following trace command as a starting point.

pktmon start --capture --comp nics --flags 0x10 --trace --provider Microsoft-Windows-TCPIP --keywords 0x200700000000 --level 16 --file-name why.etl

The trace should be kept as short as possible but should include one or two interruptions in the data flow (as shown by the Task Manager or equivalent monitoring).

Gary

Debiš 0 Reputation points

2024-11-20T20:50:56.5433333+00:00

hello @Gary Nebbett

thank you so much for deciding to help me. hereis the trace. it should have two interruptions right after one another while preforming the speedtest by ookla.

Gary Nebbett 6,091 Reputation points

2024-11-21T19:35:43.35+00:00

Hello @Debiš

That trace was good and it contained at least two pauses, each lasting about 4 seconds separated by about 15 seconds.

Can you repeat a similar trace process (with a different capture command) to check whether the pauses are related to scanning for available wireless networks?

The new capture command is:

pktmon start --capture --comp nics --flags 0x10 --trace --provider Microsoft-Windows-WLAN-AutoConfig --keywords 0x7FFFFFFFFFFF --level 5 --provider Microsoft-Windows-NWiFi --keywords 0x7FFFFFFFFFFF --level 5 --provider {d905ac1c-65e7-4242-99ea-fe66a8355df8} --keywords 0xFFFFFFFF --level 5 --file-name why.etl

Gary

Debiš 0 Reputation points

2024-11-22T12:35:06.7233333+00:00

hello @Gary Nebbett

here is the trace. again its while preforming the internet speed test by ookla and should have two pauses. if it would be better, I could provide longer traces while downloading a large file.

Gary Nebbett 6,091 Reputation points

2024-11-25T09:52:50.8766667+00:00

Hello @Debiš

The first trace that you sent (over 1 GB) indicated that a scan for WiFi networks was taking place about every 18 seconds and was taking about 4 seconds to complete; however there was no trace data that allowed interruptions in network traffic to be identified.

The second trace indicated that network traffic was being completely interrupted (no successful send or receive for any packet) about every 15 seconds which lasted for about 4 seconds.

The third trace was intended to detect if any application was initiating the WiFi network scans (possibly to obtain location information, as was the case for the original problem in this thread); however, the trace did not identify any such application activity.

Can you check the "Advanced" tab of the network adapter properties, looking for a setting similar to "Roaming Aggressiveness" or "Roaming Sensitivity Level"?

My Intel network adapter has a "Roaming Aggressiveness" setting:

Also, if there is a setting related to 802.11d then please report that too.

Gary
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Nick Brown 26 Reputation points

2022-01-03T22:06:48.117+00:00

Hi Gary,

I'm fine with that!

Well, it's been fun and my PC is zipping along and I'm really glad we .... really YOU, found the solution and that our trail of messages might help others

It's been a pleasure and thank you again.

Wishing you all the best for a better 2022

Nick
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Network throughput drops to 0Kbps (send and recieve) every 8 seconds, adapter fine on other PCs

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