hittade tillslut lösningen, det var något galet med bluethooth support service, inställningarna där. lägger in instruktionerna ifall att någon annan har problem med att bt stannar vid connecting när man försöker para
https://thegeekpage.com/fix-cant-pair-bluetooth-keyboard-chec...
Fix 4 -Bluetooth support service
1. Press Windows key + r to open run.
2. Now, write services.msc in it and click OK.
3. Now, Locate Bluetooth support service.
4. Double click on it.
5. Now, click on Log on Tab.
Browse Log On Bluettoh Supoort Service
6. Write Local service and click on check names. Now, an underline will appear on Loacl service.
7. Now, click OK.
8. Now, click on Apply and OK.
Note: – If you still can not pair bluetooth keyboard with your PC, try changing USB port.