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Solved laptop wifi suddenly very slow/intermittent

Discussion in 'Networking' started by sponnie, Sep 19, 2016.

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  1. sponnie

    sponnie Thread Starter

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    Hi, the wi-fi on my laptop has suddenly become very slow (5mbps) and it usually disconnects every 5 minutes and I have to wait another 5 minutes for it to reconnect.

    This has only started happening the last 10 days or so.

    The wi-fi on my android phone which is connected to the same router runs perfectly with quite high speeds achieved. 50mbps

    I have a computer that is wired via ethernet and that achieves speeds of 70mbps.

    I have tried reinstalling the driver but nothing happens. If I try 'updating' the driver Windows just says it's the best driver installed.

    I have tried reinstalling Windows 10 by reseting it. It has the latest updates.

    Is it possible my wi-fi adapter hardware is failing? I thought it would either work or not if it was the hardware.

    I have no idea how to solve this problem and it basically means I can't use my laptop as I have to keep waiting for it to reconnect after it disconnects every 5 minutes.

    I have also 'reset' the router incase it was a problem with that but was unsuccessful.

    I hope someone can help me with a miracle solution.

    I'm wondering if I should got back to Windows 7 but I've had Windows 10 for a good few months now and the adapter has always been fine. I'm just worried a latest update has affected it somehow.

    Oh I can also use my phone via USB tethering and I get good speeds doing that but I don't have a lot of data so it's not a viable solution.

    Thanks for reading,

    Kind regards, Sponnie.
     
  2. TerryNet

    TerryNet Moderator

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    What is the (internet access) performance connecting this laptop via ethernet?

    Do you have the latest wireless driver from the laptop manufacturer's web site?

    Try the following:

    TCP/IP stack repair options for use with Vista through 10.

    Start - All Programs - Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt. [For Windows 8 thru 10: <Windows Logo> + x - Command Prompt(Admin)]

    Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

    Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

    Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

    Reboot the machine after all three commands; no need to boot after the 1st and 2nd.
     
  3. sponnie

    sponnie Thread Starter

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    Hi TerryNet, thanks very much for replying with that suggestion. I did the 3 reset commands and rebooted but I'm still getting the same problem. It's taking 5 minutes loading the speed test page then I just get an error message saying the page couldn't load. Now the connection has been lost altogether again. It will probably come back in 5 minutes but then it'll only last for a couple and it'll do the same again.

    I also tried a System Restore to a time before it started happening but that didn't work either.

    It's very strange as I didn't know adapters could fail like this, I thought they would just stop working and not behave intermittently.

    Looks like I'll probably have to buy a new one.

    I also tried it with an ethernet cable as you advised and the speed test was normal, above 70mbps.
     
  4. TerryNet

    TerryNet Moderator

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    And the driver question?
     
  5. sponnie

    sponnie Thread Starter

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    Hi TerryNet, thanks again for replying.

    I have tried installing the driver from the Samsung site and although it seems to install I notice in Device Manager that it's still the same driver version that Windows has updated it to. I have totally uninstalled the driver before doing this but still the same problem.
     
  6. TerryNet

    TerryNet Moderator

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    If you can easily access the adapter through a cover on the laptop's bottom remove and carefully and firmly replace the adapter several times. This will fix any possible looseness or corrosion problem.
     
  7. sponnie

    sponnie Thread Starter

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    Hi TerryNet, thanks very much for that advice, you're a star! I did what you advised but when I was replacing the adapter I noticed there were two cables that had to be connected to it. There was only one cable connected when I took it out. I guess the other cable must've just got displaced somehow. Everything seems to be working fine now. I'm very happy.

    Thanks again.
     
  8. TerryNet

    TerryNet Moderator

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    Good. :) I didn't say anything about the antenna leads 'cause I was sure you would take are of them.

    You're welcome. :)
     
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