connection issues

I'm not experienced in WiFi troubleshooting. This is the first time I have this kind of connectivity issues. So far I've discovered that every time the connection gets interrupted, this blue circle/loading thing appears in networks tab: I ran a network stability test for 1 minute, this is the...

Hi A few months back I installed on my almost 10 year old laptop Linux Mint. Everything worked great until recently, maybe 1 or 2 months, my browsers are extremely laggy, chrome and firefox. My wifi connection disconnects and reconnects several times within an hour. Videos take forever to play...