hmmmm ok docking my Switch OLED with the travel dock and gteting this on the hotel TV:

No Signal
HDMI 2
Check the cable connection and the input source.
the console does seem to detect teh dock... before I order a new one, what can I test at home?
If anyone has had the same thing and fixed it, i'd love to hear what worked, i'll report back with whatever i find.
Id rather not buy a new dock if its something simple. If theres a reset or a specific order to plug things in, please let me know.