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[Arynis]

Basically:

When the connection between A and C is severed, users that were connected to other servers which are no longer reachable on the network appear to quit. For example, if user Sara is connected to server A, user Bob is connected to server B, and user Joe is connected to C, and C splits, or disconnects, from A, it will appear to Joe as if Sara and Bob both quit (disconnected from the network), and it will appear to both Sara and Bob that Joe quit. However, Joe can still talk to anyone on the same server C. This happens because the servers in which they are connected are informed of the change in the network status, and update their local information accordingly to display the change.

Later, server C may relink (reconnect) to a server on the network and the users who appeared to have quit will rejoin; the process of sending this updated information to all servers on the network is called a netburst (or sync).

We'll just have to wait until the networks reconnect, at which point we'll rejoin the people from the other network. Sometimes this happens fairly quickly (like within 5 minutes after the netsplit) but sometimes it can take much longer. So. Yeah.