Laptop won't (usually) connect to wifi but connects hotspot

[Mark_One]

I am running Windows 7 on a lenovo laptop. Previously the laptop connected ok to wifi, but occasionally stopped working. Now completely not working. No Internet access yellow triangle on small pop up, but under wireless network connection it says WiFi is connected, plus full signal.
I just set up a hotspot from my phone and it connects immediately and loads pages.. So yep, it can find the WiFi no problem.
Have tried unistalling network adapter, system restore and downloaded another broadcom driver (though this one is apparently up to date).. All to no avail. Please help.. This problem has been coming and going for two years - now it looks like it wants to stay!

 

[helpstar]

Internet connection is fine?
Other devices can access Internet via the wlan router?
Which wlan router is it?
Can you access the login page of it with your laptop?

Which Lenovo laptop is it?

 

[Mark_One]

Internet connection is fine?
Other devices can access Internet via the wlan router?
Which wlan router is it?
Can you access the login page of it with your laptop?

Which Lenovo laptop is it?

Yes, yes, this is the 4th place I've lived so router isn't the issue I think, and I can access the password pop up. Enter that (I've tried removing network too), and now it doesn't say there is a problem (before there was a pop up saying connection issue) , it just has 'unidentified network: no Internet access and yellow triangle' .. But when I open that, full signal and says its connected (but it isn't)

 

[Mark_One]

Laptop is a z480 with broadcom802.11n network driver

 

[helpstar]

try latest drivers from this site:
http/pcsupport.lenovo.com/de/de/products/Laptops-and-netbooks/IdeaPad-Z-Series-laptops/IdeaPad-Z480/downloads


Update the BIOS

 

[SgtScream]

Can you successfully connected a second device to the wifi?

 

[Mark_One]

try latest drivers from this site:
http/pcsupport.lenovo.com/de/de/products/Laptops-and-netbooks/IdeaPad-Z-Series-laptops/IdeaPad-Z480/downloads

Update the BIOS

Tried the link, downloaded the driver again and updated bios - now stuck on a bios boot screen with 4 options and all just black screen back to the same menu... Any options/ advice now?!

 

[Mark_One]

Yes my phone is connected to the same WiFi now

 

[SgtScream]

Yes my phone is connected to the same WiFi now

To effectively test wifi connection using your phone, you'll have to disable your data plan's 3/4g connection.

 

[Mark_One]

Yes my phone is connected to the same WiFi now

To effectively test wifi connection using your phone, you'll have to disable your data plan's 3/4g connection.

Yes I know that thanks.. The house wifi is fine. I've used my laptop at four different house wifi connections (including this one previously). Usually ok for a while but then yellow triangle and needs to be restarted to connect. Now permanently went chimney. Actually now maybe dead after another guy suggested updating bios!
Phone always connects to wifi no problem

 

[SgtScream]

Ok - so you get an exclamation point on your wifi adapter. Please open a command prompt and type "ipconfig /all" without quotes and post the output. Do the same for another wireless device that is working properly. Clearly label each as to which one works and which one doesn't.

 

[helpstar]

Did you update the BIOS exactly how it´s described in the how to?

1. Click the file link to download the file from the web page.
2. Locate the file 5fcn95ww_public 64bit.exe, and 5fcn95ww_private 64bit.exe that has been downloaded.
3. Double click the 5fcn95ww_public 64bit.exe icon and install.
4. During the process, you are advised not to turn off the computer.
5. When the update finishes, the computer will automatically reboot for the changes to take effect.
6. Double click the 5fcn95ww_ private 64bit.exe icon and install.
7. During the process, you are advised not to turn off the computer.
8. When the update finishes, the computer will automatically reboot for the changes to take effect.

By dead you mean the BIOS update failed and the laptop doesn´t post anything? No screen no beep no blinking leds?