https://devzone.nordicsemi.com/f/nordic-q-a/51863/queries-regarding-iv-update-procedure-in-mesh-sdkHi, I am using nrf mesh sdk 3.1.0. with nrf52832. For iv update one condition is iv_timeout_limit_passed(m_net_state.iv_update.timeout_counter). The timeout_counter value is not stored in flash. so on every power cycle it starts from zero. Pleaseen-USTelligent Community 13Fri, 29 May 2020 07:12:23 GMThttps://devzone.nordicsemi.com/thread/252304?ContentTypeID=1Fri, 29 May 2020 07:12:23 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c5a26466-eccb-4aca-87b1-bdb696509efeIgor<p>Related thread:&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/60144/access_model_publish-returns-nrf_error_forbidden-in-lpn-and-all-friendships-time-out/248638#248638">https://devzone.nordicsemi.com/f/nordic-q-a/60144/access_model_publish-returns-nrf_error_forbidden-in-lpn-and-all-friendships-time-out/248638#248638</a></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/209984?ContentTypeID=1Tue, 17 Sep 2019 06:54:00 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d99393fd-4999-44a3-8d2a-28873187ecc2Aniket_Shet<p>Thanks Simonr. will test it.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/209973?ContentTypeID=1Tue, 17 Sep 2019 05:54:33 GMT137ad170-7792-4731-bb38-c0d22fbe4515:d9b1109a-7fc3-43b4-b999-a13775d195d8Simonr<p>Hi Aniket</p> <p><span style="text-decoration:underline;">Here are the possible workarounds provided by one of our developers:</span></p> <p>1. Decrease NETWORK_SEQNUM_FLASH_BLOCK_SIZE from 8192 to e.g. 512. This will prevent the application from running out of sequence numbers very quickly. Try this first to see if it helps.</p> <p>I<span style="text-decoration:underline;">f you know how long the devices are awake, option 2 or 3 can be used as well:</span></p> <p>2. Set the initial value of timeout_counter close to 96 hours (depending on how long the devices are awake).</p> <p>3. Reduce NETWORK_MIN_IV_UPDATE_INTERVAL_MINUTES value so that the IV update procedure could be triggered earlier.</p> <p><span style="text-decoration:underline;">We do not recommend using option 4 unless all of the above fails:</span></p> <p>4. Enable the test mode (like you suggest). This will allow you to change the IV update state as soon as the device has run out of sequence numbers.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/209841?ContentTypeID=1Mon, 16 Sep 2019 13:02:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:04feaf50-55f5-4e37-975a-80e3726803a8Aniket_Shet<p>Hi Simonr,</p> <p>Thanks for the update.</p> <p>Till fix is implemented can I get a workaround for this? will setting&nbsp;m_test_mode to true be helpful?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/209825?ContentTypeID=1Mon, 16 Sep 2019 12:36:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:bf983c31-bb07-45d4-b942-e95663c10c26Simonr<p>Hi Aniket</p> <p>I heard back from the devs, and it seems like this can happen. This has been confirmed by the development team, and a fix will most likely be implemented in a future release.</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/208689?ContentTypeID=1Mon, 09 Sep 2019 12:36:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2a8b2306-0149-496c-aaa6-fe66df62c3b1Simonr<p>Hi Aniket</p> <p>Good question, I&#39;ve asked the Mesh team internally for a verified answer on this, as I&#39;m not completely sure myself. This might take some days though, so please be patient. I&#39;ll update you as soon as I know something!</p> <p>Best regards,</p> <p>Simon</p><div style="clear:both;"></div>