RE: Inspiron 3543 WiFi Lockup
' I'll be online and the WiFi connection will be lost. When I attempt to reconnect to the WiFi network Windows freezes."
Instead of attempting to reconnect WIFI, check the WIFI switch in settings. If switch off, turn on.
A) Click the windows logo at the left bottom of taskbar
C) Network & Internet
I also like to suggest you set the battery and "plugged in" to maximum performance in wireless adapter settings.
A) Power Options
B) "Change Plan Settings"
C) " Change Advanced Power Settings "
D) Wireless Adapter Settings