RBK753S Issue with logging?

Just upgraded from RBK53 set to an RBK753S.

All default settings - just kept same SSID so no need to reconfigure any of my devices. Have similar or even a little better wifi coverage but have noticed I'm getting log files emailed to me very frequently. Many of the entries are DHCP assignments that repeat and also many blank lines with just an old timestamp... Running latest Firmware.

[DHCP IP: (192.168.1.48)] to MAC address 9C:5A:44:D5:6C:FB, Sunday, Sep 20,2020 15:55:29
[DHCP IP: (192.168.1.4)] to MAC address 28:16:A8:64:24:1B, Sunday, Sep 20,2020 15:53:23
[DHCP IP: (192.168.1.4)] to MAC address 28:16:A8:64:24:1B, Sunday, Sep 20,2020 15:52:28
[DHCP IP: (192.168.1.4)] to MAC address 28:16:A8:64:24:1 Sunday, Sep 20,2020 15:52:15
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00
 Thursday, Jan 01,491926 -5:00:00