My Xbox One controller keeps slow flashing and when I connect it to my Xbox it disconnects...

My sync button turns off my Xbox one X and won't connect any controllers.

When controllers do connect they disconnect and flash.

Had this problem since beginning of February.

They are all different brands of wireless controllers. Microsoft to Amazon. NONE will connect. Yes the steps are followed perfectly and variants of the steps.

Press the ON X button. Flashes in a circle. Press the Xbox Connect. It too flashes. Press the small controller sync. Flashes slow down. After less than 1 minute the Xbox stops flashing. Then the controller stops flashing.

Only the one controller that came with it used connects. No other will. Even when I unpair, turn off, and reset the xbox. It will see NO controllers except the when I turn on the one it likes. One and that is it.

These other controllers have NO issues with my PC or Xbox 1. Just the 360.

i have tried disconnecting it and then reconnecting it and now the controller doesnt work on the laptop at all, it keeps going from connected to paired then back to connected and the xbox logo on the controller is flashing slowly.

Using my flash drive didn't work, and I tried using a wired connection so it is NOT my connection. My flash drive, system memory, and HDD have been working fine, so I on't know what the problem is. My Xbox only runs slow when I'm connected to Xbox Live,
however.

Yes, I'm trying to connect my controller via Bluetooth on my Windows 10 PC (It worked before yesterday). When I connect my controller via USB Cable it works fine.

The XBox Button flashing slowly when it's turn on. When I press the sync button to connect via Bluetooth, the XBox Button flashes for 1 second and the controller turn off.