Continuing DHCP Request - Release on one Client

2020:05:06-08:53:53 utm dhcpd: DHCPACK to 192.168.0.33 (00:13:b0:01:c3:c6) via eth0
2020:05:06-08:54:17 utm dhcpd: DHCPRELEASE of 192.168.0.141 from 84:c3:e8:00:70:c2 (vr900) via eth0 (found)
2020:05:06-08:54:22 utm dhcpd: DHCPDISCOVER from 84:c3:e8:00:70:c2 via eth0
2020:05:06-08:54:22 utm dhcpd: DHCPOFFER on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:54:22 utm dhcpd: DHCPREQUEST for 192.168.0.141 (192.168.0.254) from 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:54:22 utm dhcpd: DHCPACK on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:03 utm dhcpd: DHCPRELEASE of 192.168.0.141 from 84:c3:e8:00:70:c2 (vr900) via eth0 (found)
2020:05:06-08:55:07 utm dhcpd: DHCPDISCOVER from 84:c3:e8:00:70:c2 via eth0
2020:05:06-08:55:07 utm dhcpd: DHCPOFFER on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:07 utm dhcpd: DHCPREQUEST for 192.168.0.141 (192.168.0.254) from 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:07 utm dhcpd: DHCPACK on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:53 utm dhcpd: DHCPRELEASE of 192.168.0.141 from 84:c3:e8:00:70:c2 (vr900) via eth0 (found)
2020:05:06-08:55:57 utm dhcpd: DHCPDISCOVER from 84:c3:e8:00:70:c2 via eth0
2020:05:06-08:55:57 utm dhcpd: DHCPOFFER on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:57 utm dhcpd: DHCPREQUEST for 192.168.0.141 (192.168.0.254) from 84:c3:e8:00:70:c2 (vr900) via eth0
2020:05:06-08:55:57 utm dhcpd: DHCPACK on 192.168.0.141 to 84:c3:e8:00:70:c2 (vr900) via eth0

 

....and so on.

 

Ping is running except one timeout every minute. (when DHCPRELEASE is shown in the log)

 

Everything else is running perfectly. 20 more DHCP Clients, WLAN APs, Mobile Devices.

 

Any Ideas?

Thank you... 

 

Martin