The difference between static IP and DHCP is all down to timing, which would strongly suggest you're all experiencing the bug described in #470776 - that mountall gets told the network is up, but isn't ready to mount the NFS partitions yet - then when it *is* ready, waits for the network to come up (ie. has forgotten that it already came up)
The difference between static IP and DHCP is all down to timing, which would strongly suggest you're all experiencing the bug described in #470776 - that mountall gets told the network is up, but isn't ready to mount the NFS partitions yet - then when it *is* ready, waits for the network to come up (ie. has forgotten that it already came up)