title: HCI LE Connection -- Command Disallowed
body: <p>I am using noble &amp; bleno via node.js to connect to a BLE peripheral from Rasbian, yet something goes wrong and the connection can not be made. I tried multiple different BLE dongles and they all fail the same way. Currently I have a CSR 4.0 attached. 
  The connections works just fine when being made from OS X, iOS or Android.</p>
  
  <p>Here is the HCI Dump:</p>
  
  <pre><code>2015-11-22 18:36:54.732907 &lt; HCI Command: LE Create Connection (0x08|0x000d) plen 25
  bdaddr 00:12:6F:6B:C7:32 type 0
  interval 96 window 48 initiator_filter 0
  own_bdaddr_type 0 min_interval 6 max_interval 12
  latency 0 supervision_to 200 min_ce 4 max_ce 6
  
  2015-11-22 18:36:54.734511 &gt; HCI Event: Command Status (0x0f) plen 4
  LE Create Connection (0x08|0x000d) status 0x0c ncmd 1
  Error: Command Disallowed
  </code></pre>
  
  <p>Now when I try a connection via <code>hcitool lecc</code> or <code>gatttool</code> the connection is made - yet trying to write characteristic values fails with <code>Characteristic Write Request failed: Attribute requires authentication before read/write</code>. Is this related?</p>
  
  <p>I am on <code>Linux raspberrypi 4.1.13+ #826 PREEMPT Fri Nov 13 20:13:22 GMT 2015 armv6l GNU/Linux</code></p>