Hello, I was using the USB 3.0 Active Extension Cable by CableCreation (which most reviews say works fine) with the AmazonBasics USB 3 to C adapter (same) for Quest Link, and it worked fine until yesterday.
What I did was try to use some zipties to make the cable/extension joint harder to deattach by error if I accidentally moved it when moving around in VR; not too tight, mind you, I made sure not to bend either the cable ends or the cable wires close to them. Since that had the opposite effect and they were tied together less strongly, I cut the ziptie, and after that the USB 3 cable stopped being recognized as 3, with Oculus app saying it's USB 2.
Now, I have serious doubts I have somehow beat the USB 3 cable into becoming a USB 2 one, but I cannot leave out the possibility. I checked and there are no cuts on the cables around where I cut the zipties. I had this problem a while back and restarting PC + Quest worked (also reinstalling Oculus, I think?), but it's not working this time.
I was using the front panel port before which did work. Now, testing with just the USB C-to-3 Amazon cable seemed to work both on the front and the mobo port, wven if the front one had a weird tracking problem. With the extender, it doesn't seem to work at all from the mobo port (it isn't even seen in the BIOS device listing, while it is in all other cases), while from the front panel it *is* seen but as an USB 2 connection, as above.
Any idea what might fix this?