Seeed studio xiao samd21, no port

Other Hardware 3rd Party Boards
1

I can get my UNO to download and ID a port just fine. Same with the NANO but I cannot get a port to show up with the Seeed Studio XIAO SAMD21. The board is visible but, the error message at the bottom of the page indicates that the board is not connected. I used the USB cable that came with the board and unfortunately that is the only one of this type I have. Your thoughts?

UPDATE: I bought a new XIAOPR2040. It came with a new USB-C cable. I installed the RP2040 into my Arduino boards manager and I can select it just fine however, it shows up in DIVICE Mgr. as "Unknown USB device, (Device Descriptor request failed) and when I look for the SAMD21, it doesn't show up at all. When I plug it in, the SAMD21 gives me two rapid blinks of the onboard LEDs, followed by one long pause. This sequence continues to loop. The RP2040 simply blinks the onboard LEDs four times and then nothing. And, that only happens when the cable is turned upside down in the USB-C port. There is still no port available in the Arduino. Driving me crazy.

2

Mine is working.
I have 2 devices connected.
Mega2560 is showing as /dev/ttyACM0
Seeed XIAO is showing as /dev/ttyACM1
Maybe the cable.

3

Perhaps explain exactly what you mean.

What is visible ?

Where is the bottom of the page ?

What is the error at the 'bottom' of the page' ?

4

What is visible ? _In the board manager, I can select it.
Where is the bottom of the page ? Under the bottom panel to the right. The message is: "Seeeduino XIAO on Com3 is not connected"
When I try to assign the port, it is grayed out and will not let me assign the port.

5

What is visible ? _In the board manager, I can select it.
Where is the bottom of the page ? Under the bottom panel to the right. The message is: "Seeeduino XIAO on Com3 is not connected"
When I try to assign the port, it is grayed out and will not let me assign the port.

6

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