This is constantly going into error condition. I have tried to see what occurs immediately before. Event Manager always shows a series of DistributedCOM errors but I can't find out what these are/mean. Eventually the Marvel AVASTAR BT radio fails with Code (43) which tells me exactly nothing! The driver version for the above is 15.68.9120.47 which according to my searching is the most current one. Once the adapter fails the only resolution is to restart the computer. As suggested in another thread I have unchecked the power option to turn off the device to save power. I am onW10 and up to date on all releases. This problem is making my Arc Touch Mouse SE and my MSFT BT keyboard unusable. Does anyone have any ideas. MSFT Support has no suggestions.