Hello,
Is the “null” ok in the below?
Yeah, that’s normal operation.
The value that is pulled is null if the port itself is inactive.
Normally, depending on the band currently used, all four ports of the modem are not active. Typically only the first two are active most of the time.
When a data load is engaged, the other ports can become active.
You can test this by engaging a 4k video stream, then look at the signal info. Note, though, that certain bands, like b71, do not support 4x4 MIMO connection, so even in some cases the second two ports still will not engage.