After upgrading Win8.1 system to Win10, it can't connect to the router. Returning to Win8.1 system, the router still can't connect. This may be a problem of compatibility of the NIC driver during the process of replacing the system, which can be solved by the following method.
steps are as follows:
1. view the current version number of the wireless network card, try to face the official website of the brand download and install the latest wireless card, then upgrade.
2. Run the sfc /scannow command on the command line to fix it.
3. Uninstall the current NIC version. After upgrading, re-download the latest version on the official website.
Win8.1 system can not be connected to the router, under normal circumstances is the problem of the network card driver, as long as the update of the network card driver can be solved.
1. Press the shortcut key [Win+I], open [Settings] and then click [Change PC Settings]; 2. Click [
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