Laptop will not connect to home network with wifi, but will connect to other networks via wifi

Please can you help, I am a novice at this. My Acer laptop stopped connecting to our home network (Talk Talk) using wifi. My laptop is registering the network and that of our neighbours (they all appear on the list of available networks). When It turn off our network my laptop registers that the network is no longer available. I am able to connect to home network with ethernet cable, and I can connect to my work's wifi. Other devices belonging to my family (phones and laptops and playstation) will all connect to our home network via wifi except for my laptop. I have tried uninstalling and reinstalling the wireless driver, turning off windows firewall and various other things that I can't even remember over the last couple of ideas. PLease can anyone help......driving me nuts! Thank you inadvance

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JackE

Open DeviceManager. Click network adapters folder. Right click wifi properties. Click 'advanced' tab. Click 'preferred band'. Change from 'no preference' to 2.4GHz band. If still no connection, try 5GHz band. Jack E/NJ

nuttyhazel

Hi Jack E/NJ, unfortunately neither worked. I am assuming I didn't have to restart computer after changing the 'preferred band'?

JackE

You must actually shutdown the computer. Then turn it back on. Jack E/NJ

nuttyhazel

I've tried both bandwiths and restarted laptop after each - still no joy. Any other ideas?

JackE

>>>Other devices belonging to my family (phones and laptops and playstation)>>>

Do you have another Windows laptop that connects OK? If not, do you know how to check the Channel number that your router is set to if not automatic? Jack E/NJ

nuttyhazel

Hi - Yes, we have other windows laptops that connect to the wifi Ok. I am using one of them now. I know how to long into the router if needed.

JackE

Open DeviceManager on another laptop that connects. Click the network adapter folder again. Right click wifi properties. Click advanced tab. Click wireless mode. What channel do you get? Example "12 - 11a/b/g/n/ac". Jack E/NJ

nuttyhazel

6.802.11a/b/g

JackE

OK. Try channel 6 as the wireless mode on the laptop that won't connect. Also change the preferred band back to 'no preference'. Jack E/NJ

nuttyhazel

Hi- I changed channel 06-11a (it was the only option with a 6) and put preferred band to 'no preference' and restarted. Still no joy.

JackE

Open DeviceManager again. Click network adapters. Right click on the wifi adapter. Uninstall the adapter. Exit Device Manager without trying to reinstall anything. Shut down Windows normally. Turn machine back on. Jack E/NJ

nuttyhazel

Tried it three times - still says 'unable to connect to this network'

nuttyhazel

Checked wifi still working - laptop will connect to BT wi-fi hotspot

JackE

Check Device Manager wifi again. How many channels are available in the wireless mode dropdown? Jack E/NJ

nuttyhazel

Wireless mode options: 01-11b, 02-11g, 03-11b/g, 04-11g/n, 05-11b/g/n, 06-11a, 07-11a/n, 08-11a/b/g/n, 09-11a/g/n,10-11a/n/ac, 11-11a/g/n/ac, 12-11 a/b/n/ac

JackE

How strong is the signal? Jack E/NJ

nuttyhazel

Strong - all bars are lit up

JackE

Have you run thru the troubleshooter yet by right clicking the wifi tray icon? Jack E/NJ

nuttyhazel

Yes, several times. Just run it again. It says 'you have no preferred wireless networks'. SO I select my network and try to login - and it says 'unable to connect to this network'. When I connect to BTWi-fi and run the troubleshooter there is no problem - wireless adaptor is working. If I open up 'network connections' in the control panel I can 'see' the wireless go from 'not connected' to 'connected' when I use the open BTwif-fi.

JackE

Yes, your hardware is fine. It appears that the router login security settings somehow got changed. Enter 'security' in the Windows start menu. Click Window security. Post a screenshot of result if possible. Jack E/NJ

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