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<?xml-stylesheet type="text/xsl" href="https://devzone.nordicsemi.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>error 34(0x22): GATT CONN LMP TIMEOUT on Android devices</title><link>https://devzone.nordicsemi.com/f/nordic-q-a/50127/error-34-0x22-gatt-conn-lmp-timeout-on-android-devices</link><description>I am getting the following error message in the log when I try to connect with an Android device. It remains connected for about 40 seconds and then automatically disconnects. Any idea why this might be happening? I am not sure what it means by GATT CONN</description><dc:language>en-US</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Tue, 23 Jul 2019 14:04:16 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://devzone.nordicsemi.com/f/nordic-q-a/50127/error-34-0x22-gatt-conn-lmp-timeout-on-android-devices" /><item><title>RE: error 34(0x22): GATT CONN LMP TIMEOUT on Android devices</title><link>https://devzone.nordicsemi.com/thread/200109?ContentTypeID=1</link><pubDate>Tue, 23 Jul 2019 14:04:16 GMT</pubDate><guid isPermaLink="false">137ad170-7792-4731-bb38-c0d22fbe4515:bcf45891-26eb-4976-a68b-14bc09adb49a</guid><dc:creator>Vidar Berg</dc:creator><description>&lt;p&gt;Hi,&amp;nbsp;&lt;/p&gt;
&lt;p&gt;The error&amp;nbsp;means that a link layer procedure has timed out. The timeout is 40 seconds and the connection will be considered lost after that. It&amp;#39;s a bit hard to say what&amp;#39;s causing it without a sniffer trace, but the issue is most likely with the app running on the nRF.&amp;nbsp;Are you using the&amp;nbsp;&lt;a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v15.3.0/lib_ble_gatt.html"&gt;GATT Module&lt;/a&gt;&amp;nbsp;in your project as the other examples?&amp;nbsp;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>