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Add troubleshooting step for "Not connected" problems on Raspberry Pi. #1670

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Oct 19, 2024
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Add troubleshooting step for "Not connected" problems on Raspberry Pi. #1670

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Add troubleshooting step for "Not connected" problems on Raspberry Pi.
denravonska Oct 18, 2024
6cd945f
Clarify Raspberry Pi WiFi/Bluetooth issue.
denravonska Oct 19, 2024
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27 changes: 27 additions & 0 deletions docs/troubleshooting.rst
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Expand Up @@ -118,6 +118,33 @@ crash with an ``ImportError`` similar to::

To fix the error, change the name of the script to something other than ``bleak.py``.

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Linux Bugs
----------

Occasional "Not connected" errors on Raspberry Pi
=================================================

If you are using the built in WiFi/Bluetooth module on a Raspberry Pi and and are seeing occasional
"Not connected" errors, also manifesting as HCI error 0x3e and BlueZ error "Software caused
connection abort", when trying to connect to a device, it may be due to wifi interference on
the chip level.

As a test the wifi interface can be disabled using either

.. code-block:: shell

sudo rfkill block wlan

or

.. code-block:: shell

sudo nmcli radio wifi off

See `this <https://github.com/project-chip/connectedhomeip/issues/16178>`_ Matter issue
with similar problems on Raspberry Pi and other devices.

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macOS Bugs
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