https://devzone.nordicsemi.com/f/nordic-q-a/41357/mtu-exchange---not-receiving-a-rspHi Nordic, I am working on a NRF52 DK with the example code ble_app_interactive. I am using the NRF52 DK as a central and trying to connect to a peripheral hearing aid. My problem is that when I try to connect to the hearing aid, I get Connected anden-USTelligent Community 13Wed, 12 Dec 2018 09:23:36 GMThttps://devzone.nordicsemi.com/thread/161373?ContentTypeID=1Wed, 12 Dec 2018 09:23:36 GMT137ad170-7792-4731-bb38-c0d22fbe4515:759144af-76d0-464b-b708-1d86d310b93cDresse<p>Thank you! Exactly what I was looking for&nbsp;</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/161182?ContentTypeID=1Tue, 11 Dec 2018 12:03:10 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6aaa0301-802a-48dc-ac16-b60031d434e5Simon<p>Try establishing a connection without sending an MTU request,&nbsp;which can be done by&nbsp;modifying the sdk_config.h: set&nbsp;<em>NRF_SDH_BLE_GAP_DATA_LENGTH</em> to 27 and&nbsp;<em>NRF_SDH_BLE_GATT_MAX_MTU_SIZE</em> to 23.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/160764?ContentTypeID=1Fri, 07 Dec 2018 14:09:34 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eb8eed9c-0774-44fb-825a-659b5654a660Dresse<p>On closer inspection, it seems that the peripheral simply can&#39;t make an ATT MTU Exchange Transaction?</p><div style="clear:both;"></div>