CONFIG_BT_BUF_ACL_RX_SIZE=251 CONFIG_BT_ATT_PREPARE_COUNT=2 CONFIG_BT_L2CAP_TX_BUF_COUNT=10 CONFIG_BT_L2CAP_TX_MTU=247 CONFIG_BT_BUF_ACL_TX_SIZE=251 CONFIG_BT_L2CAP_DYNAMIC_CHANNEL=y
[00:03:00.037,811] <wrn> bt_att: No ATT channel for MTU 27
[00:03:00.037,841] <wrn> bt_gatt: No buffer available to send notification