I just get Shaw internet today but it is not stable, sometimes stream a youtube video really fast and sometimes it doesn't even access the webpage; and when I re-start the modem my internet gets better for about 15 minutes and then go back to worse, better, worst.. I already followed all the other steps and getting the same result. My computer is in good condition and I keep it directly connected to my modem.
Also, when I'm gaming I get a lot of lag and ping, doesn't matter which game I'm playing is always the same.
What can I do? Thank you in advance.