I get that...alot...my Feed the Beast Launcher Console says following when this happens:
2013-05-30 20:03:22 [INFO] [STDERR] java.net.SocketTimeoutException: Read timed out
2013-05-30 20:03:22 [INFO] [STDERR] at java.net.SocketInputStream.socketRead0(Native Method)
2013-05-30 20:03:22 [INFO]...
So yeah, since the only changelog I found consisted of 1.1.0 changed, I couldn't find anything to any changes for the nuclear reactor, I used this design...
