<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">We are seeing an installation where we the connection is disconnected every 60 seconds due to <div class=""><br class=""></div><div class="">state change: activated -> failed (reason 'modem-no-carrier', sys-iface-state: 'managed')</div><div class=""><br class=""></div><div class="">I have included an excerpt of one of the 60 second transitions from failed back to failed. </div><div class=""><br class=""></div><div class="">What would cause the connection to disconnect and immediately reconnect, then take 60 seconds to disconnect again?</div><div class=""><br class=""></div><div class="">I could believe that this site does not have great reception, however, I'd like to understand the continuous cycle and what we may be able to do about the cycle; either remain connected or don't connect at all. This cycling is hard on the network systems. (Note the site is a fixed location for cellular modem.)</div><div class=""><br class=""></div><div class="">Here's the particulars about the system:</div><div class=""><br class=""></div><div class=""><ul class="MailOutline"><li class="">Ubuntu 18.04</li><li class="">NetPlan with NetworkManager as the renderer </li><ul class=""><li class="">This allows us to integrate the modem connection with the usual ethernet connections</li></ul><li class="">mmcli 1.10.0</li></ul></div><div class=""><br class=""></div><div class="">From mmcli --modem -</div><div class=""><br class=""></div><div class=""><div class=""><font face="Consolas" class=""> Hardware | manufacturer: Sierra Wireless, Incorporated</font></div><div class=""><font face="Consolas" class=""> | model: Sierra Wireless EM7455 Qualcomm� Snapdragon? X7 LTE-A</font></div><div class=""><font face="Consolas" class=""> | revision: SWI9X30C_02.24.05.06</font></div><div class=""><font face="Consolas" class=""> | h/w revision: EM7455</font></div><div class=""><font face="Consolas" class=""> | supported: gsm-umts, lte</font></div><div class=""><font face="Consolas" class=""> | current: gsm-umts, lte</font></div><div class=""><font face="Consolas" class=""><br class=""></font></div><div class=""><font face="Consolas" class="">Thank you for any help you might be able to offer so that I can understand what is happening. </font></div><div class=""><font face="Consolas" class=""><br class=""></font></div><div class=""><div> …Duane</div><div><br class=""></div><div>Duane Murphy | Software Engineer | <a href="http://mainspringenergy.com/" class="">Mainspring Energy</a><br class=""></div></div><div class=""><br class=""></div></div><div class=""></div></body></html>