Windows Error "One or more network protocols are missing on

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I have a Toshiba C855D-S5209 with windows 10. I have been searching on Google and the Microsoft boards trying to find why this error keeps rising. The LAN seems to be working fine but the WLAN is the problem here. The Wi-Fi speeds are greatly reduced to about half of what I'm getting from other devices. Furthermore, while playing online games, I often get disconnected causing a big headache for both my teammates and myself. I have tried numerous times to install the latest WLAN drivers but the error persists. I tried to run the troubleshooting and fixing it through there but the error remains.

Any idea?

Please help.

Thanks!

I didn't find the right solution from the Internet.

References www.tomsguide.com/answers/id-2927190/windows-error-network-protocols-missing-computer.html

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