Speedtest.net is your best friend when you're having connectivity problems. If the speeds seem solid, make sure that you aren’t inadvertently downloading or uploading anything.
Tip #7 My computer keeps restarting
First, confirm that you aren’t just getting the latest wave of Windows updates, which can automatically restart your computer during installation. Then work on updating all of your critical system drivers. Your graphics card, motherboard, and network card drivers are crucial.
Tip #8- I keep seeing ‘There is a problem with this website’s security certificate’
Website security certificates sync up with your computer’s clock. Old computers in particular run the risk of having a dead CMOS battery—the watch battery in your computer that keeps its system clock ticking. Click the clock in the system tray and select Change date and time settings to correct any issues.
Tip #9 My printer won´t print