Two node in Fractal, compute-0-0 and compute-0-4, was down because a wrong distro installation and was removed by the command

insert-ethers --remove="compute-0-0"

. However, after we moved Fractal to MGHPCC and change the main node IP address. This compute node cannot receive any DHCP installation offer from the main node. We used the standard command to install a new node, since the nodes were deleted from the Rock's list already. insert-ethers; and the node to boot from PXE network. But after waiting for 10-15 mins, the communication...