04-18-2014, 05:28 PM
As for the Minecraft versions, the server supports only the official releases - versions 1.2.5 through 1.7.5 and, experimentally, 1.7.6 through 1.7.9. The weekly snapshots are not supported, so you might want to check your Minecraft launcher on the other computers that can't connect, what version it is set to use. You can do so by clicking the "Edit profile" button in the launcher screen's bottom left corner, and look at the "Version Selection" area of the shown dialog. The "Use version" combobox should have one of the release versions, not a weekly snapshot.
If you are using version 1.7.6 - 1.7.9, you might want to update MCServer to the newest version, since that protocol has been updated somewhat recently, so just to make sure you've got the latest changes.
If you are using version 1.7.6 - 1.7.9, you might want to update MCServer to the newest version, since that protocol has been updated somewhat recently, so just to make sure you've got the latest changes.