Try this way instead:
1. Press alt+r to open remotes
2. If there is text in there, goto File -> New
3. Paste in this text:
on *:START:{
server <server1> [port] -j #chan1,#chan2,#chan3
server -m <server2> [port] -j #chan4,#chan5,#chan6
server -m <server3> [port] -j #chan7,#chan8,chan#9
}
4. Make sure to remove the lines you put in perform*.
This should connect to all 3 servers at startup, even if the first one is down.
*Edit: Correction.