Unable to Connect To Wi-Fi Suddenly

Hey all,

Have woken up this morning to find my PC unable to connect to wifi. All other devices in the house are able to connect.

The network is visible on my PC but I am unable to connect.

There was a windows 10 update yesterday so not sure if it’s related to that.

Any ideas?

Edit: should add that I have uninstalled and reinstalled wifi card drivers to no effect

Comments

  •  

    Can you connect directly to the router with a blue cable?

    •  

      No modem is too far :(

  • +2 votes

    I had a surface pro that continually had a problem like this following updates and was a pain to fix every time - I unticked the checkbox in updates that allows windows to update other hardware and that stopped it happening.

    Firstly - try putting a phone into tethering mode and see if you can connect with the laptop (this will rule out the router as a problem)
    Have you tried cycling the wifi off and on again on the laptop (can sometimes work)

    Try the network reset function; Go to Network Status (type it in the search bar) scroll down to the network reset option and give it a go.

    Long shot solution - From an admin command prompt enter "reg delete HKCR\CLSID{988248f3-a1ad-49bf-9170-676cbbc36ba3} /va /f" if you don't then get a message that the registry file doesn't exist you can restart the computer (will take a while) and may fix things.

    •  

      I did tether to my phone earlier this morning and internet worked fine.

      I'll try the other methods tonight! thanks

  •  

    I have heard of this happening with the Fall Update. Check the network connection properties for anything non-standard, I know someone who had this exact issue and had to uninstall the Citrix DNE Lightwight Filter Driver.

    •  

      What do you mean by non-standard? I'm not too PC savvy lol

      •  

        Well when you said above that you successfully tethered off your phone did you mean using Wifi hotspot? If so, then your wifi should be working fine on your PC and I'd go with the suggestion below of rebooting your router.

        •  

          I turned on mobile hotspot and used the phone's internet (not Wifi). But my wifi is working on all other devices at home.

          I have reset the modem a few times but still no good

        • +1 vote

          @Heracles26:

          Your phones Hotspot is WiFi

  • +3 votes

    turn your router/modem off/on and try again. Even though others are connecting, it ca fix it.

    • +1 vote

      leave it off for a few minutes as well.

    •  

      Have tried a few times but no luck :(

  •  

    Use the "Network troubleshooter" option in your Network status screen. This can reset adapter settings.

    •  

      Will give it a go thanks!

  •  

    Small chance this may help (assuming the wifi-adapter didn't just go and die somehow):

    https://iihelp.iinet.net.au/Resetting_Network_Adapter_%28Win...

    Good luck!

    •  

      Thanks I will give that a go!

      If my PC can detect the wifi signal does this rule out the adapter being somehow damaged/working incorrectly? In other words, does it rule out a hardware issue?

      I did play around with the antenna at the back and the wifi did ostensibly connect though no web pages would load (after this it wnet back to being unable to connect)

      •  

        Yeah it should still be working ok. Could be as simple as needing to 'forget' the SSID you are connecting to and then reconnect to it (which will force you to enter in the security key again). I am a wireless network beginner but have a really complicated Ubiquiti setup going and man I hate when things don't work as they should, so I feel you!

        •  

          I have tried forgetting the network and reconnecting, entering password again but no luck!

          yea it is a little frustrating but I'll get there in time!

          thanks!

        •  

          @Heracles26: Are you able to connect to network at all? If not, what message do you get when it fails?

          Alternatively does it connect but with no internet access? If so try the winsock command in the guide linked above and also the command "netsh int ip reset" and reset the PC.

        •  

          @Cheaplikethebird:

          Not on the PC. I'm not at home to check but from memory it said something along the lines of "unable to connect to network"

          I fiddled with the wifi antenna at the back of the PC and this momentarily caused the wifi to connect (according to the little wifi symbol at the bottom of my PC) but when I tried to open any webpage nothing would load and the no internet connection page would come up

        •  

          @Heracles26: I doubt moving the antenna was actually doing anything. Been having similar issues with a lot of our Win 10 machines at work and seems to be pretty common when looking on forums, running the CMD commands 'netsh int ip reset' and 'netsh winsock reset' will usually fix it.

        •  

          @Cheaplikethebird:

          Will give it a shot tonight, thanks!!

    • +1 vote

      This did the trick, thanks :)

  •  

    Check for updated drivers. If it's built onto the motherboard, check for a BIOS update as well.

    The 3G cellular modem on my Dell notebook stopped working after the recent windows update, but a system BIOS update got it going again.

    •  

      Do you mean if the wifi card is built onto the motherboard? If so then no, it's a separate wifi card that I purchased and installed

  •  

    dumb questions have you rebooted your pc. My system sometimes wont connect unless you do a reboot even though it sees the networks

    •  

      Yea multiple times but to no effect!

  •  

    Try power down your PC, remove the power plug for a minute or two then power up again

    •  

      Will try that too thanks!

      •  

        Cos you said you were on L Plates……this can solve a few things (and true from personal experience - not wifi related). Basically the PC retains enough "juice" from when it was connected to the 240V that some bits do not actually "see" the on/off if it was done quickly. Needs 3 (say) minutes for that remnant charge to drain to nil then all things truly need to start again. A really old one in the "fixes" area.

        No idea on your actual problem - like another poster said wifi is a mystery to me and I hate it when it plays up!

        •  

          Ah interesting ok! It's off all day while I'm at work so will boot it up first thing when I get home and see if that is enough in itself

        •  

          @Heracles26:

          Just in case as, for most, "off" is just switching the appliance off not a total disconnection from a power source - "off" isn't "off" if it's still plugged into the 240V as PC's (unless really old) will still be "eating" a trickle of power (eg if you break open the case you will see that the little LED indicator lights on your mother board will be glowing). Much like how, when you switch off the TV (and a myriad of other gear) there will be an LED on the front glowing to say "I'm in standby mode". This trick is literally "pull the plug" completely and utterly, either at the case or the wall.

        •  

          @havebeerbelywillsumo:

          Ok no problem will do, thanks again!

  •  

    Maybe this?

    ipconfig /flushdns

    https://en.wikipedia.org/wiki/Ipconfig

    •  

      Thanks!

    •  

      This only work if you're connected to the network though?

      •  

        Oh. Ignore then ha

  •  

    If all else fails factory reset the modem. You can also check if your computer MAC address was accidentally added to the blacklist.

  •  

    This happens to me on a Windows Vista laptop often. Try this, it works for me:

    1. Go to the network connections in Control Panel.
    2. Right click to disable the wireless modem.
    3. Right click to Diagnose the problem.

    Always fixes it, it may help in your case.

    •  

      Your problem is VISTA! get rid of it ASAP

  •  

    I just had this problem. Fixed it with option 1. I think it is related to the windows update.

    https://www.drivereasy.com/knowledge/solved-windows-10-cant-...

  •  

    From a computer technician……

    TROUBLE SHOOTING - YOU MUST DETERMINE EXACTLY WHERE THE PROBLEM IS !!!!

    1. Try connecting another device such as a mobile phone to determine if problem is with PC or modem
    2. If the other device connects then problem is with the computer
    3. If other device doesnt connect then problem is with modem OR could be an outside issue where you are not receiving internet from your ISP.

    4. If computer or network card issue:
      a) maybe try updating drivers or reinstalling old drivers
      b) Trying installing a different network card in the PC
      c) trying connecting to modem with a network cable

    5. If a modem issue:
      a) make sure your modem is receiving internet - check the LEDs on the modem
      b) try doing a factory reset on the modem and set up again - use the ISP's setup guide
      c) try another modem

    GOOD LUCK

  •  
    Merged from Back Again with Wi-Fi Issues!

    Hey once again,

    I am having the "cant connect to network" error once again on my PC when I attempt to connect to WiFi.

    I had success previously trying the "netsh winsock reset" method but that no longer works now.

    I have tried all the other methods listed in my previous thread with no luck.

    Not sure where to go from here.

    TO reiterate, WiFi is working throughout the house (I have tethered my phone to the PC). The PC is detecting the WiFi signal. When I click the network to connect, it asks for my password which i input, then it says "unable to connect to network"

    Thanks in advance :)

    Edit: screen appears to be flickering when I’m attempting to connect to wifi too, weird

    •  

      Don't know if it was discussed in the previous thread, but have you tried logging into your router page and checking to see if for any strange reason it is filtering out your PC?

      I assume it's only the PC affected and other devices in the house are able to connect.

      •  

        How do I do that?

        Yea all other devices are working fine

        •  

          google search "route brand/model address"

          it is usually 192.168.0.1 by default.

        •  

          Open up cmd and type ipconfig and hit enter
          Scroll through and look for the default gateway address
          Then type that IP address into your browser

        •  

          @Jamiea:

          It just comes up with media disconnected

    • Please do not create a new thread for an existing problem.

      •  

        Sorry Scotty!

    •  

      Might be a hardware issue. I suggest you test using a mates network card.

      •  

        Would I still be able to detect the wifi signal if it was hardware issue though?

        •  

          Yeah sure. Troubleshoot by removing variables.

    •  

      Edit: screen appears to be flickering when I’m attempting to connect to wifi too, weird

      Uh. Is your PC broken? If the screen is flickering, it might just be that your power supply or motherboard's about to die and the wifi is just a symptom of much bigger issues…

      •  

        It’s brand new, less than 2 months old com pccasegear

        •  

          Should still be under warranty. Go talk to PCCG, because if everything else in your home can find the wifi signal and connect, it's definitely an issue with your computer. Either settings, or something might be defective (but not completely dead) DOA.

        •  

          @HighAndDry:

          Well it's working now haha! Not sure what on earth is going on