There may be several reasons you would be unable to connect to your own server on minecraft. First check to make sure you have not typed in the Ip address wrong. Second, make sure you are running the latest Minecraft server software(You have to download a new version after every Minecraft update). Thirdly, you cannot connect to a server using the computer that is running the said server.
you couldn't connect to the server because of a crash, bad connection, etc. Wait about an hour than try again.
You forgot to take out the META.INF folder like they told you to do.
There could be a number of reasons. (A) he/she might be using the browser to try to connect. (B) if it's a public server they might be "whitelisted". (C) not sure bout this one but they may have a mod unsupported by the server. Hope this helps!
Try relogging.
Probably because your client is not the same version as the server. The server lists its own version information in the console (near the top). Also make sure the server isn't lagging.
Try googling "Minecraft disney server" and it will probably come up :). -youtube.com/user/DjOver9000
Usually you should just wait a little longer. If still nothing happens, then the server you are connecting to may not work.
To connect to an IP server you need to first of course find an IP. Once you've found an IP to a server you like, copy is and go to the multiplayer section on Minecraft. Since you can't right click the place to insert your IP you'll need to press CTRL + V and it inserts the copied IP. Then enter. :) If the server isn't running then try another time, and also if it has a whitelist you'll need to gain access to the server first.
Have you bought the game? Platnium mean that you have purchessed it. If you haven't, then you will need to in order for it to say 'Platnium'.
If you are unable to connect to the Minecraft login server after you open Minecraft on your computer first ensure you are able to go to Minecraft's website in your browser. If you are able to, make sure that Minecraft.exe is not blocked by your firewall program.
The answer is that you didnt make the PATH in your Java
It means that either two people are trying to use the same account on the same server, or you are using an account that is not completely authentic