I've got minecraft 1.10.2 and i tried to connect to the archon network but it said that the server was "outdated".i don't know why this is happening for some reason cane someone answer me? thanks
Whenever a new update is released, the Minecraft client will check to make sure that the version you're currently on also matches the version the server is running.
You'll have to wait for the server owners to update their version of Minecraft server to match that of the clients.
There is a work around if you're itching to play right now though. If you download and revert your copy of Minecraft to the previous version, you will be able to jump back onto the server. It would be easier to just wait it out though.