I can connect to the network at home with my phone or another notebook, but mine won't connect even though it did before I left for holiday. However, it connects to all the other networks I've tried. One interesting thing I noticed was that my notebook can connect to my modem when the frequency is 5 GHz, but not when it's 2.4 GHz. I want it to be 2.4 GHz because the range gets too narrow at 5 GHz. All my drivers are up to date. How can I fix this problem? Thanks!

Please uninstall the network driver from Control Panel\Program and Features and Device Manager. Then, reinstall the latest driver. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Install a wireless network card in each computer to make your computer capable of being a part of the network. Most of the computers come with wireless network cards but if you do not have it in your computer, you can buy a new wireless network card and install the driver program for the wireless network card to make it work. You need to setup the computer to obtain the IP address form the DHCP and run the wireless network setup wizard present in Windows operating system high than Windows XP. Now, computer is part of the wireless router.Email Spam Blocker | Lenovo Support