LOG could be helpful to understand.
I need to actually switch on timestamping, but anyhow this is the log segment of one wallet after the last few blocks it received:
received block c5382b6c1f40f9e5accd
SetBestChain: new best=c5382b6c1f40f9e5accd height=608789 trust=23642058705891938 blocktrust=777978559 date=12/03/15 19:41:16
ProcessBlock: ACCEPTED
Flushing wallet.dat
Flushed wallet.dat 35ms
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608789, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608789, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
received block 00000001356639aae487
SetBestChain: new best=00000001356639aae487 height=608790 trust=23642061769231729 blocktrust=3063339791 date=12/03/15 19:41:24
ProcessBlock: ACCEPTED
Flushing wallet.dat
Flushed wallet.dat 54ms
ResendWalletTransactions()
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608790, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608790, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
trying connection ambercoin03.mooo.com lastseen=0.0hrs
Flushed 0 addresses to peers.dat 12ms
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608790, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
received block 0000000054665ef32835
SetBestChain: new best=0000000054665ef32835 height=608791 trust=23642065652341482 blocktrust=3883109753 date=12/03/15 19:41:32
ProcessBlock: ACCEPTED
Flushing wallet.dat
Flushed wallet.dat 30ms
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608791, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608791, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608791, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
received block c7d8467e74d8dd54058c
SetBestChain: new best=c7d8467e74d8dd54058c height=608792 trust=23642066754988762 blocktrust=1102647280 date=12/03/15 19:42:23
ProcessBlock: ACCEPTED
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608792, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
Flushing wallet.dat
Flushed wallet.dat 41ms
received block 00000000b7a3ad84f972
SetBestChain: new best=00000000b7a3ad84f972 height=608793 trust=23642072215644811 blocktrust=5460656049 date=12/03/15 19:42:30
ProcessBlock: ACCEPTED
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
Flushing wallet.dat
Flushed wallet.dat 27ms
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
socket closed
disconnecting node ambercoin02.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
trying connection ambercoin02.mooo.com lastseen=0.0hrs
connection timeout
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket closed
disconnecting node ambercoin01.mooo.com
trying connection ambercoin02.mooo.com lastseen=0.0hrs
connection timeout
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed
disconnecting node ambercoin03.mooo.com
trying connection ambercoin01.mooo.com lastseen=0.0hrs
connected ambercoin01.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=108.61.173.201:31982, peer=108.61.173.201:31982
socket recv error 10054
disconnecting node ambercoin01.mooo.com
trying connection ambercoin02.mooo.com lastseen=0.0hrs
connection timeout
trying connection ambercoin03.mooo.com lastseen=0.0hrs
connected ambercoin03.mooo.com
send version message: version 90001, blocks=608793, us=0.0.0.0:0, them=45.32.69.218:31982, peer=45.32.69.218:31982
socket closed