I currently am seeing the following continuously repeating message in the system log while connected to 4G t-mobile cell service. Internet connectivity seems to work as expected, but the flapping doesn’t seem like it should be continuous.
Signal seems good
RSRP -102
RSSI -76
RSRQ -12
SINR 11
Firmware 4.3.1 (release10301)
Firmware 4.3.3 (release40303)
Thu Jun 8 23:39:30 2023 user.notice mwan3[21973]: Execute ifdown event on interface modem_0001_4 (unknown)
Thu Jun 8 23:39:31 2023 user.notice firewall: Reloading firewall due to ifdown of modem_0001_4 ()
Thu Jun 8 23:39:31 2023 user.notice mwan3[22299]: Execute ifup event on interface modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:31 2023 user.notice mwan3[22299]: Starting tracker on interface modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:34 2023 user.info mwan3rtmon[9386]: Detect rtchange event.
Thu Jun 8 23:39:34 2023 user.notice firewall: Reloading firewall due to ifup of modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:40 2023 user.notice root: modem ip different, now regain ip ...
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' has lost the connection
Thu Jun 8 23:39:40 2023 daemon.warn dnsmasq[5395]: no servers found in /tmp/resolv.conf.d/resolv.conf.auto, will retry
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' is now down
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' is disabled
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' is enabled
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' is setting up now
Thu Jun 8 23:39:40 2023 daemon.notice netifd: modem_0001_4 (23331): udhcpc: started, v1.33.2
Thu Jun 8 23:39:40 2023 daemon.notice netifd: modem_0001_4 (23331): udhcpc: sending discover
Thu Jun 8 23:39:40 2023 daemon.notice netifd: modem_0001_4 (23331): udhcpc: sending select for 192.0.0.2
Thu Jun 8 23:39:40 2023 daemon.notice netifd: modem_0001_4 (23331): udhcpc: lease of 192.0.0.2 obtained, lease time 7200
Thu Jun 8 23:39:40 2023 daemon.notice netifd: Interface 'modem_0001_4' is now up
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: reading /tmp/resolv.conf.d/resolv.conf.auto
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain test
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain onion
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain localhost
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain local
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain invalid
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain bind
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain lan
Thu Jun 8 23:39:40 2023 daemon.info dnsmasq[5395]: using nameserver 192.0.0.1#53
Thu Jun 8 23:39:40 2023 user.notice mwan3[23308]: Execute ifdown event on interface modem_0001_4 (unknown)
Thu Jun 8 23:39:41 2023 user.notice firewall: Reloading firewall due to ifdown of modem_0001_4 ()
Thu Jun 8 23:39:41 2023 user.notice mwan3[23634]: Execute ifup event on interface modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:41 2023 user.notice mwan3[23634]: Starting tracker on interface modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:44 2023 user.info mwan3rtmon[9386]: Detect rtchange event.
Thu Jun 8 23:39:44 2023 user.notice firewall: Reloading firewall due to ifup of modem_0001_4 (rmnet_mhi0)
Thu Jun 8 23:39:50 2023 user.notice root: modem ip different, now regain ip ...
Thu Jun 8 23:39:50 2023 daemon.notice netifd: Interface 'modem_0001_4' has lost the connection
Thu Jun 8 23:39:50 2023 daemon.warn dnsmasq[5395]: no servers found in /tmp/resolv.conf.d/resolv.conf.auto, will retry
Thu Jun 8 23:39:50 2023 daemon.notice netifd: Interface 'modem_0001_4' is now down
Thu Jun 8 23:39:50 2023 daemon.notice netifd: Interface 'modem_0001_4' is disabled
Thu Jun 8 23:39:50 2023 daemon.notice netifd: Interface 'modem_0001_4' is enabled
Thu Jun 8 23:39:50 2023 daemon.notice netifd: Interface 'modem_0001_4' is setting up now
Thu Jun 8 23:39:51 2023 daemon.notice netifd: modem_0001_4 (24574): udhcpc: started, v1.33.2
Thu Jun 8 23:39:51 2023 daemon.notice netifd: modem_0001_4 (24574): udhcpc: sending discover
Thu Jun 8 23:39:51 2023 daemon.notice netifd: modem_0001_4 (24574): udhcpc: sending select for 192.0.0.2
Thu Jun 8 23:39:51 2023 daemon.notice netifd: modem_0001_4 (24574): udhcpc: lease of 192.0.0.2 obtained, lease time 7200
Thu Jun 8 23:39:51 2023 daemon.notice netifd: Interface 'modem_0001_4' is now up
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: reading /tmp/resolv.conf.d/resolv.conf.auto
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain test
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain onion
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain localhost
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain local
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain invalid
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain bind
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using only locally-known addresses for domain lan
Thu Jun 8 23:39:51 2023 daemon.info dnsmasq[5395]: using nameserver 192.0.0.1#53
Thu Jun 8 23:39:51 2023 user.notice mwan3[24551]: Execute ifdown event on interface modem_0001_4 (unknown)