To add to what Collective said, mIRC is software used to IRC (Internet Relay Chat) on any of many networks. Each network has their own servers, which you use to connect to that specific network. Khaled has nothing to do with any of those networks or servers.
DALnet is currently the network du jour to attack, which means many servers are down, which means connecting to that network is hard.
There are other networks you can try, this web page
has tips and links to info about other networks to consider. This web page
has a good list of many networks as well.
We can certainly sympathize with your frustration, but mIRC and Khaled arent to blame.