Intermittent Slow Wifi

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  1. Posts : 41
    win 10

    Intermittent Slow Wifi

    Hi All,

    On one of my machines, wifi is intermittent. It ocassionaly works well, but mostly is painfull slow, or cannot connect at all. The problem started a couple of weeks ago, before that it was fine.

    Speed test over ethernet: ping 8ms, download 36Mbp upload 9Mbps
    Speed test over wifi: ping 13ms, download 0.1Mbp upload 0Mbps sometimes just get test error

    I've tried to troubleshoot with no success:
    -Checked various network settings
    -Check wifi adaptor drivers. Remove & reinstall
    -Forget network settings & start from sratch
    -Checked wifi chip is not turning off due to power options
    -Checked TCP/IP settings (IPv4 & IPv6 both set to obtain ip address automatically)
    -Netsh winsock reset
    -Netsh int ip reset
    -Flushed DNS cache
    -Changed to open DNS
    -Probably a few things else I tried which i've forgotten!

    Running Win 10 2004 build 19041.928

    Any suggestions very welcome & appreciated! Thanks
      My Computer

  2. Macboatmaster's Avatar
    Posts : 1,106
    11, 10, 8.1 and 7 all Professional versions, and Linux Mint

    The only information we have on your computer spec is
    Computer Type: Laptop
    System Manufacturer/Model Number: hp

    This is of course not a lot of help, there is no real additional info in your post, could you please tell us the make and full model of the wireless adapter in use and indeed on which computer and if the HP the full model of that
      My Computer

  3. FreeBooter's Avatar
    Posts : 4,082
    Windows 10 Pro 64-bit

    You have to find out if slow speed caused by your wireless network card or internet service provider or faulty router, check to see if other devices connected to router having same problem.
      My Computer

  4. Samuria's Avatar
    Posts : 6,280
    windows 10

    Your windows version is out of support upgrading to the latest may help. Go onto MS store and download a wifi anerlizer free look to se eif there are router on the same channel and high signal strength which is blocking your signal
      My Computer

  5. Posts : 41
    win 10
    Thread Starter

    Thanks for the replies.

    Sorry, I've not updated the system specs in my profile since I have a couple of machines. This one is a HP Pavilion Notebook 15-p189na. Network adapter is Realtek RTL8723BE (driver version 2024.0.4.208).

    The slow speed is not the router. Other devices connect over wifi & are fast. It is just this machine which is slow & only when on wifi. On ethernet it is fine.

    Automatic updates are on, & that windows version is only a month old, but I will try a manual update & see if that helps.

    - - - Updated - - -

    Ok, checked for updates & installed those.

    I'm reluctant to install S0H2 - usually prefer to wait a while before installing a Feature Update / large update etc.
      My Computer

  6. nIGHTmAYOR's Avatar
    Posts : 1,190
    Windows 10

    can you bring in another laptop to same location and apply same tests on both and see if you'd have same or different results ? sometimes interference from a neighboring router or radio controllers near by slow down wifi connections .
      My Computer

  7. Posts : 41
    win 10
    Thread Starter

    Yes, my other laptop has no issues with wifi - same router, same location etc.
      My Computer

  8. Samuria's Avatar
    Posts : 6,280
    windows 10

    What did the the scan of local routers show and what version of wirless is the laptop runnin ie 2g, 5g and what type is it ie b,g,n,ac?
      My Computer

  9. Berton's Avatar
    Posts : 11,273
    Win10 Pro Versions 2004 and 2009/20H2, Win10 Pro IP_Dev, Win10 Home 1909

    I have one Notebook with an 802.11ac Wireless adapter and connects to an 802.11n Router, sometimes gives problems such as disconnecting. Usually all I have to do is use the keyboard to turn the adapter Off then back On. It also has the Bluetooth Wireless so I lose that for a bit.

    As noted in one of the news postings here that Notebook is also giving the security warning about the Router being too old, guess I need to set up a new one.
      My Computers

  10. Macboatmaster's Avatar
    Posts : 1,106
    11, 10, 8.1 and 7 all Professional versions, and Linux Mint

    If you have it enabled - turn off bluetooth
    The Realtek chip provides not only the wifi, but also the NIC and the bluetooth

    if you have bluetooth turned on - although not using it, the wifi will be slow

    Go device manager expand network adpaters
    right click on the realtek wireless
    click properties
    click advanced
    please tell me if you have bluetooth on the list and antennae diversity
      My Computer

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