Recently, there was a Security update rolled out on Microsoft and this has affected the pairing or connecting issues to many users, especially with Bluetooth devices. These security updates are totally meant to prevent connections to Windows that cause security vulnerability. If you too are facing one such issue, then here is an article that might help.
Affected Security Updates
The latest cumulative updates and Monthly Rollups that have been mentioned below and released on June 11 2019, or later for the affected platforms will experience the altered behavior –
- KB4503293 or later LCU for Windows 10, version 1903.
- KB4503327 or later LCU for Windows 10, version 1809 and Windows Server 2019.
- KB4503286 or later LCU for Windows 10, version 1803.
- KB4503284 or later LCU for Windows 10, version 1709.
- KB4503279 or later LCU for Windows 10, version 1703.
- KB4503267 or later LCU for Windows 10, version 1607 and Windows Server 2016.
- KB4503291 or later LCU for Windows 10, version 1507.
- KB4503276 or later Monthly Rollup for Windows 8.1 and Windows Server 2012 R2.
- KB4503285 or later Monthly Rollup for Windows Server 2012 and Windows Embedded 8 Standard.
The below Security Only updates are also affected –
- KB4503290 for Windows 8.1 and Windows Server 2012 R2.
- KB4503263 for Windows Server 2012 and Windows Embedded 8 Standard.
The above security updates address a security vulnerability by intentionally preventing connections from Windows to unsecure Bluetooth devices. Any device using well-known keys to encrypt connections may be affected, including some security fobs, says Microsoft.
| Event Log | System |
| Event Source | BTHUSB or BTHMINI |
| Event ID | 22 |
| Name | BTHPORT_DEBUG_LINK_KEY_NOT_ALLOWED |
| Level | Error |
| Event Message Text | Your Bluetooth device attempted to establish a debug connection. The Windows Bluetooth stack does not allow debug connection while it is not in the debug mode. |
Bluetooth devices do not connect to Windows
The security update has affected a number of versions of Windows 10 that include – 1903, 1809, 1607, 1507, Windows 8.1 and Server 2012. In case you too are facing this issue, you can make use of any of the below methods –
Update Bluetooth drivers
When Security and OEM updates arrive, they generally also bring along the Drivers update. Hence it may be possible that you are facing the Bluetooth devices do not connect to Windows issue.
Thus a solution to thus can be che king for the Bluetooth updates. One can search for the update from the Windows Update so as to download the latest version of driver from OEM websites and install it.
Uninstall Quality Updates
Since the issue is caused by the Security update, uninstalling this update could be a solution. However, doing this can also make your PC open to Bluetooth vulnerabilities. To uninstall the Security Updates temporarily, follow the below path –
- Go to Settings > Update and Security > Windows Update.
- Now Click on View Update history > Uninstall Updates.
- That is it.
Hope the article was of use.
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