Brand new F16, running Windows 11. Ethernet card and USB C cards keep powering off

I have the ethernet card and two of the new USB-C cards. I've now tried them in all six slots (but I favor 1, 4, and 5). The ethernet keeps powering off, disconnecting me after a period of time until I physically pull out the whole card and push it back in. The USB-C cards likewise keep powering off any drives connected to them. This happens even without my computer going to sleep or even closing the lid, although both of those things are also guaranteed to turn them off.

Any advice on how to fix this? I'm assuming it's a windows thing, but all the guides I've found send me to check non-existent settings in the power options menu.

This has made my laptop almost unusable. Any assistance is welcome. Thanks.