Здравствуйте! Вначале, до поиска решения проблемы с подключением е3131 к роутеру, маршрутизатор даже не пытался подключиться через 3G. После я проделал то, что было в рекомендациях: скачал последнюю версию прошивки для роутера и обновил его, скачал bin файлик для e3131 и его установил, прошил модем под рекомендуемую версию - 21.158.00.00.1020 и перевел его в режим модема at-командой. В итоге, статус модема при подключении к роутеру: определен, мощность сигнала: 94%, пытается подключиться и отваливается, снова идет идентификация и следом попытка подключиться...
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# TL-MR3220 System Log
# Time = 1970-01-01 0:17:56 1077s
# H-Ver = MR3220 v2 00000000 : S-Ver = 3.15.0 Build 131217 Rel.53800n
# L = 192.168.0.1 : M = 255.255.255.0
# 3G : 3G = 0.0.0.0 : M = 0.0.0.0 : G = 0.0.0.0
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1st day 00:14:20 OTHER INFO User clear system log.
1st day 00:14:25 3G/4G WARNING 3G Modem occurs exception, please reinsert the 3G modem.
1st day 00:14:27 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:14:38 PPP NOTICE Standard authentication.
1st day 00:14:38 3G/4G NOTICE 3G/4G start connecting...
1st day 00:14:38 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:14:38 PPP INFO pppd start
1st day 00:14:50 PPP NOTICE Standard authentication.
1st day 00:14:50 3G/4G NOTICE 3G/4G start connecting...
1st day 00:14:50 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:14:50 PPP INFO pppd start
1st day 00:15:00 3G/4G WARNING 3G Modem connecting error, please check the dial number and APN.
1st day 00:15:00 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:15:11 PPP NOTICE Standard authentication.
1st day 00:15:11 3G/4G NOTICE 3G/4G start connecting...
1st day 00:15:11 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:15:11 PPP INFO pppd start
1st day 00:15:23 PPP NOTICE Standard authentication.
1st day 00:15:23 3G/4G NOTICE 3G/4G start connecting...
1st day 00:15:23 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:15:23 PPP INFO pppd start
1st day 00:15:33 3G/4G WARNING 3G Modem occurs exception, please reinsert the 3G modem.
1st day 00:15:35 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:15:46 PPP NOTICE Standard authentication.
1st day 00:15:46 3G/4G NOTICE 3G/4G start connecting...
1st day 00:15:46 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:15:46 PPP INFO pppd start
1st day 00:15:58 PPP NOTICE Standard authentication.
1st day 00:15:58 3G/4G NOTICE 3G/4G start connecting...
1st day 00:15:58 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:15:58 PPP INFO pppd start
1st day 00:16:08 3G/4G WARNING 3G Modem connecting error, please check the dial number and APN.
1st day 00:16:08 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:16:19 PPP NOTICE Standard authentication.
1st day 00:16:19 3G/4G NOTICE 3G/4G start connecting...
1st day 00:16:19 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:16:19 PPP INFO pppd start
1st day 00:16:31 PPP NOTICE Standard authentication.
1st day 00:16:31 3G/4G NOTICE 3G/4G start connecting...
1st day 00:16:31 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:16:31 PPP INFO pppd start
1st day 00:16:41 3G/4G WARNING 3G Modem occurs exception, please reinsert the 3G modem.
1st day 00:16:43 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:16:54 PPP NOTICE Standard authentication.
1st day 00:16:54 3G/4G NOTICE 3G/4G start connecting...
1st day 00:16:54 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:16:54 PPP INFO pppd start
1st day 00:17:05 PPP NOTICE Standard authentication.
1st day 00:17:06 3G/4G NOTICE 3G/4G start connecting...
1st day 00:17:06 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:17:06 PPP INFO pppd start
1st day 00:17:16 3G/4G WARNING 3G Modem connecting error, please check the dial number and APN.
1st day 00:17:16 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error
1st day 00:17:27 PPP NOTICE Standard authentication.
1st day 00:17:27 3G/4G NOTICE 3G/4G start connecting...
1st day 00:17:27 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:17:27 PPP INFO pppd start
1st day 00:17:38 PPP NOTICE Standard authentication.
1st day 00:17:38 3G/4G NOTICE 3G/4G start connecting...
1st day 00:17:38 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:17:38 PPP INFO pppd start
1st day 00:17:49 3G/4G WARNING 3G Modem occurs exception, please reinsert the 3G modem.
1st day 00:17:51 3G/4G INFO sw3GMobileCmdReq 348 mobileFormatCmd error