Way to determine Connection Rate to Router (Tx Rate)

On my computer, I can determine my computer's connection rate to my router is lets say 145 Mbps.

Is there a way I can determine Tivo connection rate with router. I thought I may be able to do it from the router but I don't see it anywhere. Using Linksys WRT1900ac.

I'm just curious what the Tivo's doing. I actually connect much faster to 2.4 ghz on my computer than I do to the 5 ghz. 145 Mbps at 2.4 GHz v 41 Mbps at 5 GHz.)

Thanks in advance.