Try removing the memory sticks and then reinstalling to clear the cache and allow for a clean boot . Then left clicking on the wireless icon in the system tray and turning Airplane mode off in the window that opens? Im assuming your running windows ten . to access the memory sticks remove the rear cover in this guide Toshiba Satellite C55Dt-A5306 CMOS Battery Replacement

you dont need to remove the hard drive or cmos just the memory . Hope this helps