Internet Broswer(s) are acting up, computer help? please?

I need computer help. All of my internet browsers go back & forth with working & then saying the server is lost. What can I do to fix this? My laptop has been updated to Windows 10 not too long ago so I honestly hope that isn’t it.
I was using Google Chrome, but it started there. So I used Internet Explorer, Opera, and Firefox. They work, I can search and find things but then all of a sudden it says the page is lost. But I’m still connected to the Internet! So I usually wait awhile, refresh the page, and then it comes back. It’s so weird…