Cannot connect to known wi-fi networks after waking up from standby

After waking up from standby mode, my Lenovo X200 laptop cannot connect to known Wi-Fi networks (both at home and office).

It uses Intel WiFi Link 5100 AGN card and Microsoft's driver with Windows 10 Build 10586.36.

I try setting the 802.11n Change Width for band 2,4 to Auto.
It works!

Set 802.11n Chanel Width for band 2.4 to Auto

Hope this will save you time if run into the same situation.

Be HAPPY!

Linux command: tail

tail - output the last part of files

Linux command: top

NAME top - display Linux processes SYNOPSIS top -hv|-bcHiOSs -d secs -n max -u|U user -p pid -o fld -w [cols] The traditional switches `-' and whitespace are optional. DESCRIPTION The top program provides a dynamic real-time view of a running system. It can display system summary information as well as a list of processes or threads currently being managed by the Linux kernel. The types of system summary information shown and the types, order and size of information displayed for processes are all user configurable and that configuration can be made persistent across restarts. The program provides a limited interactive interface for process manipulation ...

Linux command: printenv

printenv - print all or part of environment NAME printenv - print all or part of environment SYNOPSIS printenv [OPTION]... [VARIABLE]... DESCRIPTION Print the values of the specified environment VARIABLE(s). If no VARIABLE is speci‐ fied, print name and value pairs for them all. -0, --null end each output line with NUL, not newline --help display this help and exit --version output version information and exit NOTE: your shell may have its own version of printenv, which usually supersedes the version described here. Please refer to your shell's documentation for d...

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