Sunrise Internet Box User Manual page 52

Health check
diagnostics
Tests for multiple
DHCP servers
Tests for IP
address
conflict
Test Ethernet
cables
Page 52
Field
Launch all the tests
Checks for multiple DHCP services on the LAN side. This could
be the case if you connect multiple gateways with each other.
Checks if several devices have the same IP address. This can
happen if you have configured a device with a static address
that also belongs to the dynamic range.
Test for faults in Ethernet cables
Action
Sunrise Internet Box User Manual