i must configure 2 dhcp server in failover but when i restart the daemons the failover connexion is always rejected

a piece of /var/log/message

the slave:

May 7 11:03:05 admin_reseau dhcpd: Failover CONNECT from 10.10.1.199: time offset too large
May 7 11:03:05 admin_reseau dhcpd: failover: disconnect: time offset too large
May 7 11:03:20 admin_reseau dhcpd: failover: link startup timeout

the master:

May 7 11:06:05 failover peer dhcp: I move from resolution-interrupted to startup
May 7 11:06:05 srv-dhcp dhcpd: Listening on LPF/eth0/00:60:b0:57:29:ff/10.10.0.0
May 7 11:06:05 srv-dhcp dhcpd: Sending on LPF/eth0/00:60:b0:57:29:ff/10.10.0.0
May 7 11:06:05 srv-dhcp dhcpd: Sending on Socket/fallback/fallback-net
May 7 11:06:05 srv-dhcp dhcpd: failover peer dhcp: I move from resolution-interrupted to startup
May 7 11:06:05 srv-dhcp dhcpd: Failover CONNECT to 10.10.1.38 rejected: Connection rejected, time mismatch too great.


Could you help me please ?

thanks

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