please provide the beta version of the firmware.
email rup_0700@rediffmail.com or please provide a link.

I am using Prithvi EVDO modema and facing same issue in it. Also Location and Mobile ISP set to India and BSNL respectively which is automatically updated to US and AT&T after disconnecting. Its getting disconnected frequently while i set Max idle time to '0' to remain active. EVDO Prithvi modem is working fine if its directly plugged in system and not disconnected as i monitored since long time. I will really appreciate if anyone can help for this issue. I also upgraded firmware version to recent one but issue still persist.:(



####################################################################
# TL-MR3020 System Log
# Time = 1970-01-01 0:51:51 3112s
# H-Ver = MR3020 v1 00000000 : S-Ver = 3.17.2 Build 150921 Rel.62529n
# L = 192.168.0.254 : M = 255.255.255.0
# 3G : 3G = 0.0.0.0 : M = 0.0.0.0 : G = 0.0.0.0
####################################################################


1st day 00:00:07 OTHER INFO System started
1st day 00:00:17 DHCP NOTICE DHCP server started
1st day 00:00:17 SECURITY INFO PPTP Passthrough enabled
1st day 00:00:17 SECURITY INFO L2TP Passthrough enabled
1st day 00:00:17 SECURITY INFO IPSEC Passthrough enabled
1st day 00:00:18 SECURITY INFO FTP ALG enabled
1st day 00:00:18 SECURITY INFO TFTP ALG enabled
1st day 00:00:18 SECURITY INFO H323 ALG enabled
1st day 00:00:18 SECURITY INFO RTSP ALG enabled
1st day 00:00:18 SECURITY INFO SIP ALG enabled
1st day 00:00:25 3G/4G NOTICE Thread keepModemOnline started.
1st day 00:00:25 3G/4G NOTICE USB power enabled.
1st day 00:01:59 3G/4G NOTICE handle_card start
1st day 00:01:59 3G/4G INFO LTE MODEM = 0, status = 1, targetVendorID = 0x0, targetProductID = 0x0
1st day 00:02:11 3G/4G INFO Before Mode switch VendorID = 0x15eb, ProductID = 0x1231
1st day 00:02:14 3G/4G NOTICE serialNum 4 indexInt 0
1st day 00:02:27 3G/4G INFO Main interface_index[0] = 0
1st day 00:02:27 3G/4G INFO Vice interface_index[1] = 2
1st day 00:02:28 3G/4G NOTICE after switch modem vid is 0x15eb pid is 0x1231
1st day 00:02:28 3G/4G INFO LTE MODEM = 0, status = 2, targetVendorID = 0x15eb, targetProductID = 0x1231
1st day 00:02:29 3G/4G INFO USB modem is ready
1st day 00:02:29 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:02:30 PPP NOTICE Standard authentication.
1st day 00:02:30 3G/4G NOTICE 3G/4G start connecting...
1st day 00:02:30 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:02:31 PPP INFO pppd start
1st day 00:02:57 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:02:58 PPP NOTICE Standard authentication.
1st day 00:02:58 3G/4G NOTICE 3G/4G start connecting...
1st day 00:02:58 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:02:58 PPP INFO pppd start
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x6541aec2]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x6541aec2]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xbec7d0c2]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xbec7d0c2]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x66da86cb]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x66da86cb]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xb22d3296]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xb22d3296]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x6b3d1236]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x6b3d1236]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xa60be150]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xa60be150]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xe7da6096]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xe7da6096]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0x11bab0ba]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0x11bab0ba]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x255c6fc9]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x255c6fc9]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xcc3899dd]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xcc3899dd]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xb4879240]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xb4879240]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0x9f43baac]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0x9f43baac]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xa9c7f029]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xa9c7f029]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xeeb120f1]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xeeb120f1]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xf9c32c25]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xf9c32c25]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0xae27ffec]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0xae27ffec]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd4604883]
1st day 00:03:11 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xd4604883]
1st day 00:03:11 PPP INFO sent [LCP Nak magic=0x4aaf0f7e]
1st day 00:03:11 PPP INFO rcvd [LCP Nak magic=0x4aaf0f7e]
1st day 00:03:11 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x3e34b813]
1st day 00:03:14 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x3e34b813]
1st day 00:03:14 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x3e34b813]
1st day 00:03:14 PPP INFO sent [LCP Nak magic=0xe0ec24d9]
1st day 00:03:14 PPP INFO rcvd [LCP Nak magic=0xe0ec24d9]
1st day 00:03:14 PPP ERROR Loopback detected
1st day 00:03:14 PPP INFO sent [LCP TermReq]
1st day 00:03:14 PPP INFO rcvd [LCP TermReq]
1st day 00:03:14 PPP INFO sent [LCP TermAck]
1st day 00:03:14 PPP INFO rcvd [LCP TermAck]
1st day 00:03:21 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:03:21 3G/4G WARNING 3G Modem connecting error, please check the dial number and APN.
1st day 00:03:21 3G/4G INFO sw3GMobileCmdReq 450 mobileFormatCmd error
1st day 00:03:32 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:03:33 PPP NOTICE Standard authentication.
1st day 00:03:33 3G/4G NOTICE 3G/4G start connecting...
1st day 00:03:33 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB0 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:03:33 PPP INFO pppd start
1st day 00:03:37 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:40 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:43 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:47 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:50 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:52 PPP INFO rcvd [LCP Req auth=chap-MD5 pcomp accomp]
1st day 00:03:52 PPP INFO sent [LCP Rej pcomp accomp]
1st day 00:03:53 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:56 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:03:59 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:04:02 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:04:05 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd029a87d]
1st day 00:04:16 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:04:17 PPP NOTICE Standard authentication.
1st day 00:04:17 3G/4G NOTICE 3G/4G start connecting...
1st day 00:04:17 3G/4G INFO Run 3G dial cmd: pppd 3g 1 /dev/ttyUSB2 115200 connect "chat -s -v -f /etc/ppp/c
1st day 00:04:17 PPP INFO pppd start
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd7aca6f1]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xd7aca6f1]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0x1ea1b6c5]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0x1ea1b6c5]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xa00c2812]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xa00c2812]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0xe2a8a7d1]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0xe2a8a7d1]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x3784fe55]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x3784fe55]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0xcd634483]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0xcd634483]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xd8336f4d]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xd8336f4d]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0xad925ea5]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0xad925ea5]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x65169ed8]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x65169ed8]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0x989a1d40]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0x989a1d40]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0x4f5b7567]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0x4f5b7567]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0x23847c47]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0x23847c47]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xc2fa128]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xc2fa128]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0x4af09784]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0x4af09784]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xed4babc]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xed4babc]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0xd1f16037]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0xd1f16037]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xccc5aa72]
1st day 00:04:25 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xccc5aa72]
1st day 00:04:25 PPP INFO sent [LCP Nak magic=0xae2a7c41]
1st day 00:04:25 PPP INFO rcvd [LCP Nak magic=0xae2a7c41]
1st day 00:04:25 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xdb3d391a]
1st day 00:04:28 PPP INFO sent [LCP Req mru=1480 asyncmap=0x0 magic=0xdb3d391a]
1st day 00:04:28 PPP INFO rcvd [LCP Req mru=1480 asyncmap=0x0 magic=0xdb3d391a]
1st day 00:04:28 PPP INFO sent [LCP Nak magic=0x65eb5ed4]
1st day 00:04:28 PPP INFO rcvd [LCP Nak magic=0x65eb5ed4]
1st day 00:04:28 PPP ERROR Loopback detected
1st day 00:04:28 PPP INFO sent [LCP TermReq]
1st day 00:04:28 PPP INFO rcvd [LCP TermReq]
1st day 00:04:28 PPP INFO sent [LCP TermAck]
1st day 00:04:28 PPP INFO rcvd [LCP TermAck]
1st day 00:04:36 3G/4G INFO ISP=, APM = , dialNum = #777, username = cdma, password = cdma
1st day 00:04:36 3G/4G NOTICE Reset the 3G modem, please wait.
1st day 00:04:36 3G/4G NOTICE handle_card start
1st day 00:04:36 3G/4G INFO LTE MODEM = 0, status = 1, targetVendorID = 0x0, targetProductID = 0x0
1st day 00:04:38 3G/4G INFO sw3GMobileCmdReq 450 mobileFormatCmd error
1st day 00:04:41 3G/4G INFO LTE MODEM = 0, status = 0, targetVendorID = 0x0, targetProductID = 0x0
1st day 00:04:42 3G/4G NOTICE delete usb_reset file
1st day 00:04:45 3G/4G INFO 3G Modem is plugged out.
1st day 00:04:46 3G/4G NOTICE handle_card start
1st day 00:04:46 3G/4G INFO LTE MODEM = 0, status = 1, targetVendorID = 0x0, targetProductID = 0x0
1st day 00:04:51 3G/4G INFO LTE MODEM = 0, status = 0, targetVendorID = 0x0, targetProductID = 0x0
1st day 00:04:54 3G/4G INFO 3G Modem is plugged out.