It is probably because your laptop isn't fast enough. I have a laptop that is at 1.333 GHz and that wasn't fast enough. It worked for the first time but then not after that. There is nothing you can really do.
if you created it right then they have to know you multiplayer server address to get to your multiplayer server
If you own a school laptop you probably can't because it would probably be access denied. But if you cant, watch youtube videos for instructions.
You can.
it means that the server is either turned off, or is encountering problems
hypixel's server, i cant remember the exact address, but you can just google it
Type in the IP address or Hamachi address of your friend's correctly or play the premium Minecraft. Myncraft1: Your friends has to be on (Hamachi) to connect to his server
Low memory space...?
you go on minecraft launcher and go to options and force update you cant update if you got classic
You can. The server just has to be on when you try to join or the server is whitelisted and you aren't on the whitelist.
You should be able to. Contact your friend and see whether or not he or she set up the server right.
The hamachi part yes as long as the hamachi is active for that server the server itself cant run though as the server is local to the computer.
you cant