When adding a Kenwood repeater to the network… 2 things are required.
a) you MUST turn off the Over the Air Alias on both the repeater and any users radios. If you don’t, there is a better than 50% chance that NO icom radio will hear your call which can be pretty frustrating when you’re on a WW linked system.
b) your repeater MUST run Very Narrow on the Digital side. Icom does not support 12.5khz digital, only 6.25 and so the 2 systems are not compatible unless they both are set for 6.25khz… this is a Kenwood repeater setting btw.