Why does the Internet disappear on Windows 8 on the Lenovo laptop (Wi-Fi)?

Good afternoon!

I have a laptop Lenovo B590 model 20206. Windows 8 (64 bit.) Internet is periodically lost. Can disconnect in 20 minutes after turning on and can and 2 hours quietly work. With the router everything is fine because I connect another Samsung laptop (Windows 7) and no problems. At first I had a public network and troubleshooting wrote: “DNS server is not responding”. Then it started writing “Windows cannot contact the device or resource (primary DNS server)”

I decided to change the network to a private network.

The internet started disappearing with other messages from fault diagnosis:

First: ” Default gateway is unavailable. Fixed.”

Last time I get: “The connection of the access point, router or cable modem to the Internet is broken. The network gateway is available, but Windows is unable to accept network traffic from the Internet.”

Help please! Adjusted the power supply of the network adapter (set it to maximum performance when powered from the mains and disallowed disabling the network adapter to save power). Checked the security section of the wireless network properties – FIPS compliant. Please help! Thanks in advance.

Answer

Hello. Whether it is a private or public network is irrelevant in this case. From your description it is not very clear what exactly happens on the laptop (in Windows 8) when the connection fails. Does the connection status change to “No Internet Access” and a yellow exclamation mark appears on the connection icon? Does the internet start working again after disconnecting and reconnecting to the network, rebooting the laptop, or rebooting the router?

How does the laptop work with other Wi-Fi networks? Does it also lose internet access after a while? If you connect the internet to Lenovo B590 via cable, does it work fine?

Now some tips to solve your problem (where I would start):

Doing a network reset in Windows 8. Through the command line, following these instructions: /miscellaneous-tips-for-windows/tcp-ip-and-dns-network-settings-in-windows-7/
Write static DNS addresses in the properties of the wireless connection.

If that doesn’t help, then from Lenovo’s website, for the B590 (for Windows 8) download the Wi-Fi (wireless LAN) drivers. They are there, I checked. Just before these in Device Manager, look for the manufacturer of the Wi-Fi module, as there are drivers for Broadcom, Realtek and Intel (you need to know which module is in your laptop).

After downloading the driver in Device Manager, uninstall the Wi-Fi adapter (if there is a question about uninstalling the software – uninstall) and reboot the laptop. And after rebooting, run the driver installation.

Of course, there may be a problem in Windows 8 itself. In some installed programs (which can somehow affect the connection to the Internet). If you have time and know how – you can reinstall Windows. To check everything on a clean system. Well, and it is possible that the reason is hardware problems with the Wi-Fi module itself in your Lenovo B590 laptop. Perhaps it is warming up, for example.

You can also disable the built-in firewall and antivirus (completely).