Re: Unreliable 4G LTE interface IP address

Hi Daniel, OK, I am running the connmand debug manually in command line, it is the same debug messages and it is able to be reproduced, the connmand works many loops for disconnecting antenna, then it finally stopped to poll or to call DHCP, there is no IP address now but the connmand is still running. Here is whole debug from the console screen: # CONNMAN_DHCP_DEBUG=1 connmand -n -d src/dhpc.c:src/net work.c:plugins/ofono.c connmand[3135]: Connection Manager version 1.37 connmand[3135]: Adding configuration wifi connmand[3135]: Ignore group named 'global' because prefix is not 'service_' connmand[3135]: Adding service configuration wifi connmand[3135]: Adding configuration cellular connmand[3135]: Ignore group named 'global' because prefix is not 'service_' connmand[3135]: Adding service configuration cellular connmand[3135]: Checking loopback interface settings connmand[3135]: System hostname is solar connmand[3135]: lo {newlink} index 1 address 00:00:00:00:00:00 mtu 65536 connmand[3135]: lo {newlink} index 1 operstate 0 <UNKNOWNconnmand[3135]: sit0 {newlink} index 2 address 00:00:00:00:08:00 mtu 1480 connmand[3135]: sit0 {newlink} index 2 operstate 2 <DOWNconnmand[3135]: mlan0 {create} index 3 type 1 <ETHERconnmand[3135]: mlan0 {RX} 14 packets 2382 bytes connmand[3135]: mlan0 {TX} 33 packets 4316 bytes connmand[3135]: mlan0 {update} flags 36867 <UPconnmand[3135]: mlan0 {newlink} index 3 address D4:CA:6E:9A:7E:53 mtu 1500 connmand[3135]: mlan0 {newlink} index 3 operstate 2 <DOWNconnmand[3135]: Adding interface mlan0 [ wifi ] connmand[3135]: wwan0 {create} index 4 type 65534 <NONEconnmand[3135]: wwan0 {RX} 30 packets 2572 bytes connmand[3135]: wwan0 {TX} 36 packets 2699 bytes connmand[3135]: wwan0 {update} flags 4240 <DOWNconnmand[3135]: wwan0 {newlink} index 4 address 00:00:00:00:00:00 mtu 1500 connmand[3135]: wwan0 {newlink} index 4 operstate 2 <DOWNconnmand[3135]: mlan0 {RX} 14 packets 2382 bytes connmand[3135]: mlan0 {TX} 33 packets 4316 bytes connmand[3135]: mlan0 {newlink} index 3 address D4:CA:6E:9A:7E:53 mtu 1500 connmand[3135]: mlan0 {newlink} index 3 operstate 2 <DOWN[ 275.244356] mwifiex_sdio mmc0:0001:1: info: trying to associate to 'JupiterIo T' bssid 34:08:04:12:b1:a2 [ 275.300753] mwifiex_sdio mmc0:0001:1: info: associated to bssid 34:08:04:12:b 1:a2 successfully connmand[3135]: mlan0 {RX} 15 packets 2495 bytes connmand[3135]: mlan0 {TX} 33 packets 4316 bytes connmand[3135]: mlan0 {update} flags 102403 <UP,LOWER_UPconnmand[3135]: mlan0 {newlink} index 3 address D4:CA:6E:9A:7E:53 mtu 1500 connmand[3135]: mlan0 {newlink} index 3 operstate 5 <DORMANT[ 275.378601] IPv6: ADDRCONF(NETDEV_CHANGE): mlan0: link becomes ready connmand[3135]: mlan0 {add} route ff00:: gw :: scope 0 <UNIVERSEconnmand[3135]: mlan0 {add} route fe80:: gw :: scope 0 <UNIVERSEconnmand[3135]: mlan0 {RX} 16 packets 2712 bytes connmand[3135]: mlan0 {TX} 35 packets 4564 bytes connmand[3135]: mlan0 {update} flags 102467 <UP,RUNNING,LOWER_UPconnmand[3135]: mlan0 {newlink} index 3 address D4:CA:6E:9A:7E:53 mtu 1500 co[ 275.447911] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x23f error, result=0x2 nnmand[3135]: mlan0 {newlink} index 3 operstate 6 <UPconnmand[3135]: DHCP index 3: switch listening mode (0 ==> 1) connmand[3135]: DHCP index 3: sending DHCP discover request connmand[3135]: DHCP index 3: received DHCP packet xid 0xf5970486 (current state 0) connmand[3135]: DHCP index 3: init ip 192.168.0.101 secs 0 -> broadcast flag off connmand[3135]: DHCP index 3: start request (retries 0) connmand[3135]: DHCP index 3: sending DHCP request (state 2) connmand[3135]: DHCP index 3: received DHCP packet xid 0xf5970486 (current state 2) connmand[3135]: DHCP index 3: switch listening mode (1 ==> 0) connmand[3135]: DHCP index 3: start bound connmand[3135]: DHCP index 3: processed DHCP packet (new state 3) connmand[3135]: mlan0 {add} address 192.168.0.101/24 label mlan0 family 2 connmand[3135]: mlan0 {add} route 192.168.0.0 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: mlan0 {add} route 192.168.0.1 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: mlan0 {add} route 0.0.0.0 gw 192.168.0.1 scope 0 <UNIVERSEconnmand[3135]: mlan0 {add} route 212.227.81.55 gw 192.168.0.1 scope 0 <UNIVERSE connmand[3135]: wwan0 {RX} 30 packets 2572 bytes connmand[3135]: wwan0 {TX} 36 packets 2699 bytes connmand[3135]: wwan0 {update} flags 69841 <UP,RUNNING,LOWER_UPconnmand[3135]: wwan0 {newlink} index 4 address 00:00:00:00:00:00 mtu 1500 connmand[3135]: wwan0 {newlink} index 4 operstate 0 <UNKNOWNconnmand[3135]: wwan0 {add} route ff00:: gw :: scope 0 <UNIVERSEconnmand[3135]: wwan0 {add} route fe80:: gw :: scope 0 <UNIVERSEconnmand[3135]: rp_filter set to 2 (loose mode routing), old value was 2 connmand[3135]: ipconfig state 3 ipconfig method 1 connmand[3135]: wwan0 {add} address 10.114.11.88/28 label wwan0 family 2 connmand[3135]: wwan0 {add} route 10.114.11.80 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {add} route 10.114.11.89 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {add} route 10.4.130.164 gw 10.114.11.89 scope 0 <UNIVERSE connmand[3135]: wwan0 {add} route 10.4.58.204 gw 10.114.11.89 scope 0 <UNIVERSEconnmand[3135]: wwan0 {del} route fe80:: gw :: scope 0 <UNIVERSEconnmand[3135]: wwan0 {del} route ff00:: gw :: scope 0 <UNIVERSEconnmand[3135]: wwan0 {add} route 212.227.81.55 gw 10.114.11.89 scope 0 <UNIVERS Econnmand[3135]: mlan0 {del} route 212.227.81.55 gw 192.168.0.1 scope 0 <UNIVERSE connmand[3135]: wwan0 {del} route 212.227.81.55 gw 10.114.11.89 scope 0 <UNIVERS E [ 371.772925] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x23f error, result=0x2 Disconnect antenna connmand[3135]: rp_filter restored to 2 connmand[3135]: wwan0 {del} route 10.4.130.164 gw 10.114.11.89 scope 0 <UNIVERSE connmand[3135]: wwan0 {del} route 10.4.58.204 gw 10.114.11.89 scope 0 <UNIVERSEconnmand[3135]: wwan0 {del} route 10.114.11.89 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {del} address 10.114.11.88/28 label wwan0 connmand[3135]: wwan0 {del} route 10.114.11.80 gw 0.0.0.0 scope 253 <LINK Connect antenna connmand[3135]: rp_filter set to 2 (loose mode routing), old value was 2 connmand[3135]: ipconfig state 3 ipconfig method 1 connmand[3135]: wwan0 {add} address 10.114.11.88/28 label wwan0 family 2 connmand[3135]: wwan0 {add} route 10.114.11.80 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {add} route 10.114.11.89 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {add} route 10.4.130.164 gw 10.114.11.89 scope 0 <UNIVERSE connmand[3135]: wwan0 {add} route 10.4.58.204 gw 10.114.11.89 scope 0 <UNIVERSEconnmand[3135]: wwan0 {add} route 212.227.81.55 gw 10.114.11.89 scope 0 <UNIVERS Econnmand[3135]: wwan0 {del} route 212.227.81.55 gw 10.114.11.89 scope 0 <UNIVERS E Disconnect antenna connmand[3135]: rp_filter restored to 2 connmand[3135]: wwan0 {del} route 10.4.130.164 gw 10.114.11.89 scope 0 <UNIVERSE connmand[3135]: wwan0 {del} route 10.4.58.204 gw 10.114.11.89 scope 0 <UNIVERSEconnmand[3135]: wwan0 {del} route 10.114.11.89 gw 0.0.0.0 scope 253 <LINKconnmand[3135]: wwan0 {del} address 10.114.11.88/28 label wwan0 connmand[3135]: wwan0 {del} route 10.114.11.80 gw 0.0.0.0 scope 253 <LINK[ 612.404088] mwifiex_sdio mmc0:0001:1: CMD_RESP: cmd 0x23f error, result=0x2 Repeat ....... Connect antenna It stopped working, no IP address and no more messages coming, but the connmand is still running, I think that is the main issue some DHCP polling process stopped. ~# ps | grep connmand 3135 root 8552 S connmand -n -d src/dhpc.c:src/network.c:plugins/ofono.c Does it give some clues? Thank you. Kind regards, Jupiter