I have a few EC25-V modules, installed in various openwrt-devices, which do not receive an IP from Verizon, using ppp. Sometimes it succeeds, but only after a few hours of redialing.
The firmware is EC25VFAR02A14M4G
I see
AT+CSQ
+CSQ: 14,99
+COPS: 0,0,“Verizon Wireless”,7
+QNWINFO: “FDD LTE”,“311480”,“LTE BAND 4”,2050
Any suggestions, what to do/check ?
Some debug output from pppd:
Mon Nov 1 02:03:13 2021 daemon.notice netifd: Interface ‘wwan’ is setting up now
Mon Nov 1 02:03:15 2021 daemon.notice pppd[32166]: pppd 2.4.9 started by root, uid 0
Mon Nov 1 02:03:16 2021 daemon.debug pppd[32166]: Script USE_APN=vzwinternet DIALNUMBER=99**1# /usr/sbin/chat -t5 -E -f /etc/chatscripts/3g.chat finished (pid 32222), status = 0x0
Mon Nov 1 02:03:16 2021 daemon.info pppd[32166]: Serial connection established.
Mon Nov 1 02:03:16 2021 daemon.debug pppd[32166]: using channel 4178
Mon Nov 1 02:03:16 2021 kern.info kernel: [26069.560189] 3g-wwan: renamed from ppp0
Mon Nov 1 02:03:16 2021 daemon.info pppd[32166]: Renamed interface ppp0 to 3g-wwan
Mon Nov 1 02:03:16 2021 daemon.info pppd[32166]: Using interface 3g-wwan
Mon Nov 1 02:03:16 2021 daemon.notice pppd[32166]: Connect: 3g-wwan <–> /dev/ttyUSB3
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x65d04e9b>]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: rcvd [LCP ConfReq id=0xf3 <asyncmap 0x0> <magic 0x194cf8ff> ]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: No auth is possible
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: sent [LCP ConfRej id=0xf3 ]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x65d04e9b>]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: rcvd [LCP ConfReq id=0xf4 <asyncmap 0x0> <magic 0x194cf8ff>]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: sent [LCP ConfAck id=0xf4 <asyncmap 0x0> <magic 0x194cf8ff>]
Mon Nov 1 02:03:17 2021 daemon.debug pppd[32166]: sent [LCP EchoReq id=0x0 magic=0x65d04e9b]
Mon Nov 1 02:03:18 2021 daemon.debug pppd[32166]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Mon Nov 1 02:03:18 2021 daemon.debug pppd[32166]: sent [IPV6CP ConfReq id=0x1 ]
Mon Nov 1 02:03:18 2021 daemon.debug pppd[32166]: rcvd [LCP DiscReq id=0xf5 magic=0x194cf8ff]
Mon Nov 1 02:03:18 2021 daemon.debug pppd[32166]: rcvd [LCP EchoRep id=0x0 magic=0x194cf8ff 65 d0 4e 9b]
Mon Nov 1 02:03:18 2021 daemon.notice pppd[32166]: Modem hangup
Mon Nov 1 02:03:18 2021 daemon.notice pppd[32166]: Connection terminated.
However, much later, connection is established:
Mon Nov 1 02:52:06 2021 daemon.notice pppd[19994]: pppd 2.4.9 started by root, uid 0
Mon Nov 1 02:52:08 2021 daemon.debug pppd[19994]: Script USE_APN=vzwinternet DIALNUMBER=99**1# /usr/sbin/chat -t5 -E -f /etc/chatscripts/3g.chat finished (pid 20091), status = 0x0
Mon Nov 1 02:52:08 2021 daemon.info pppd[19994]: Serial connection established.
Mon Nov 1 02:52:08 2021 daemon.debug pppd[19994]: using channel 4651
Mon Nov 1 02:52:08 2021 kern.info kernel: [29001.081176] 3g-wwan: renamed from ppp0
Mon Nov 1 02:52:08 2021 daemon.info pppd[19994]: Renamed interface ppp0 to 3g-wwan
Mon Nov 1 02:52:08 2021 daemon.info pppd[19994]: Using interface 3g-wwan
Mon Nov 1 02:52:08 2021 daemon.notice pppd[19994]: Connect: 3g-wwan <–> /dev/ttyUSB3
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [LCP ConfReq id=0x1 <asyncmap 0x0> <magic 0x738c194a>]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: rcvd [LCP ConfReq id=0x7e <asyncmap 0x0> <magic 0x1979b4b2> ]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: No auth is possible
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [LCP ConfRej id=0x7e ]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0x738c194a>]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: rcvd [LCP ConfReq id=0x7f <asyncmap 0x0> <magic 0x1979b4b2>]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [LCP ConfAck id=0x7f <asyncmap 0x0> <magic 0x1979b4b2>]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [LCP EchoReq id=0x0 magic=0x738c194a]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [IPCP ConfReq id=0x1 <addr 0.0.0.0> <ms-dns1 0.0.0.0> <ms-dns2 0.0.0.0>]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: sent [IPV6CP ConfReq id=0x1 ]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: rcvd [LCP DiscReq id=0x80 magic=0x1979b4b2]
Mon Nov 1 02:52:09 2021 daemon.debug pppd[19994]: rcvd [LCP EchoRep id=0x0 magic=0x1979b4b2 73 8c 19 4a]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: rcvd [IPCP ConfReq id=0x0]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: sent [IPCP ConfNak id=0x0 <addr 0.0.0.0>]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: rcvd [IPCP ConfNak id=0x1 <addr 100.76.27.225> <ms-dns1 198.224.166.135> <ms-dns2 198.224.167.135>]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: sent [IPCP ConfReq id=0x2 <addr 100.76.27.225> <ms-dns1 198.224.166.135> <ms-dns2 198.224.167.135>]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: rcvd [IPCP ConfReq id=0x1]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: sent [IPCP ConfAck id=0x1]
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: rcvd [IPCP ConfAck id=0x2 <addr 100.76.27.225> <ms-dns1 198.224.166.135> <ms-dns2 198.224.167.135>]
Mon Nov 1 02:52:10 2021 daemon.warn pppd[19994]: Could not determine remote IP address: defaulting to 10.64.64.64
Mon Nov 1 02:52:10 2021 daemon.notice pppd[19994]: local IP address 100.76.27.225
Mon Nov 1 02:52:10 2021 daemon.notice pppd[19994]: remote IP address 10.64.64.64
Mon Nov 1 02:52:10 2021 daemon.notice pppd[19994]: primary DNS address 198.224.166.135
Mon Nov 1 02:52:10 2021 daemon.notice pppd[19994]: secondary DNS address 198.224.167.135
Mon Nov 1 02:52:10 2021 daemon.debug pppd[19994]: Script /lib/netifd/ppp-up started (pid 20123)
Mon Nov 1 02:52:10 2021 daemon.notice netifd: Network device ‘3g-wwan’ link is up
Mon Nov 1 02:52:10 2021 daemon.notice netifd: Interface ‘wwan’ is now up
Usually, I would conclude, that there is bad radio connection. But I have other, identical devices, in the same location, which work without problems.