Region : Sri Lanka

Model : TL-MR3040

Hardware Version : V2

Firmware Version :

ISP :

Hi,

My TP link MR 3040 (v2) sometimes not detecting my Huawei Hi Link E3272 4G dongle. If I connected the 4G dongle to the router, it shows device status as "Disconnected" (Status page), but I can see the Huawei dongle LED blinking (blue color). Apart from that, sometimes this router WiFi connection drop and looks like it automatically reboot. In this situation after WiFi drop, the router doesn't detect the USB dongle. Although, there's no such an issue if I use WAN only mode (use ethernet cable).

My Router details.
firmware version 3.17.1 Build 131121
hardware version MR3040 v2 00000000

Router system log.


####################################################################
# TL-MR3040 System Log
# Time = 2015-07-23 21:51:55 5420s
# H-Ver = MR3040 v2 00000000 : S-Ver = 3.17.1 Build 131121 Rel.62425n
# 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
####################################################################

Jul 23 20:21:42 OTHER INFO System started
Jul 23 20:21:53 DHCP NOTICE DHCP server started
Jul 23 20:21:53 SECURITY INFO PPTP Passthrough enabled
Jul 23 20:21:53 SECURITY INFO L2TP Passthrough enabled
Jul 23 20:21:53 SECURITY INFO IPSEC Passthrough enabled
Jul 23 20:21:53 SECURITY INFO FTP ALG enabled
Jul 23 20:21:53 SECURITY INFO TFTP ALG enabled
Jul 23 20:21:53 SECURITY INFO H323 ALG enabled
Jul 23 20:21:53 SECURITY INFO RTSP ALG enabled
Jul 23 20:22:06 3G/4G NOTICE handle_card start
Jul 23 20:22:06 3G/4G INFO LTE MODEM = 0, status = 1, targetVendorID = 0x0, targetProductID = 0x0
Jul 23 20:22:11 3G/4G INFO Before Mode switch VendorID = 0x12d1, ProductID = 0x1f01
Jul 23 20:22:12 3G/4G INFO Memory command is matched.
Jul 23 20:22:17 DHCP NOTICE DHCPS:Recv REQUEST from 84:38:38:30:F1:EE
Jul 23 20:22:18 DHCP NOTICE DHCPS:Send ACK to 192.168.0.101
Jul 23 20:22:24 3G/4G NOTICE after switch modem vid is 0x12d1 pid is 0x14db
Jul 23 20:22:24 3G/4G INFO LTE MODEM = 2, status = 2, targetVendorID = 0x12d1, targetProductID = 0x14db
Jul 23 20:22:29 3G/4G INFO USB modem is ready
Jul 23 20:22:32 3G/4G NOTICE 3G/4G start connecting...
Jul 23 20:22:34 DHCP INFO dhcpc_ipc_data_rcv_router 662 : current network type = 1
Jul 23 20:22:34 DHCP NOTICE DHCPC Send DISCOVER with request ip 0 and unicast flag 0
Jul 23 20:22:35 DHCP NOTICE DHCPC Recv OFFER from server c0a80101 with ip c0a80164
Jul 23 20:22:35 DHCP NOTICE DHCPC Send REQUEST to server c0a80101 with request ip c0a80164
Jul 23 20:22:36 DHCP NOTICE DHCPC Recv ACK from server c0a80101 with ip c0a80164 lease time 86400
Jul 23 20:22:36 DHCP NOTICE DHCPC:GET ip:c0a80164 mask:ffffff00 gateway:c0a80101 dns1:c0a80101 dns2:c0a80101 static route:0
Jul 23 20:22:36 DHCP INFO dhcpc_ipc_data_rcv_router 662 : current network type = 1
Jul 23 20:22:36 DHCP WARNING dhcpc_ipc_data_rcv_lte 269 dhcpstr.ip = 192.168.1.1
Jul 23 20:22:36 DHCP INFO Update DNS1 = 0xc0a80101, DNS2=0xc0a80101
Jul 23 20:22:36 DHCP WARNING LTE Network connected.
Jul 23 20:22:37 3G/4G INFO Modem information is updated
Jul 23 20:35:25 DHCP NOTICE DHCPS:Recv DISCOVER from 9C:D2:1E:4A:55:9D
Jul 23 20:35:26 DHCP NOTICE DHCPS:Send OFFER with ip 192.168.0.100
Jul 23 20:35:26 DHCP NOTICE DHCPS:Recv REQUEST from 9C:D2:1E:4A:55:9D
Jul 23 20:35:26 DHCP NOTICE DHCPS:Send ACK to 192.168.0.100
Jul 23 21:19:53 DHCP NOTICE DHCPS:Recv REQUEST from 84:38:38:30:F1:EE
Jul 23 21:19:53 DHCP NOTICE DHCPS:Send ACK to 192.168.0.101
Jul 23 21:48:55 3G/4G NOTICE handle_card start
Jul 23 21:48:55 3G/4G INFO LTE MODEM = 0, status = 1, targetVendorID = 0x0, targetProductID = 0x0
Jul 23 21:48:55 3G/4G INFO LTE MODEM = 0, status = 0, targetVendorID = 0x0, targetProductID = 0x0
Jul 23 21:48:55 3G/4G INFO process_msg 395 : call dhcpcLteModemRelease
Jul 23 21:48:55 DHCP NOTICE DHCPC Unicasting a release of 192.168.1.100 to 192.168.1.1
Jul 23 21:48:55 DHCP NOTICE DHCPC Entering released state
Jul 23 21:48:55 DHCP INFO dhcpc_ipc_data_rcv_router 662 : current network type = 1
Jul 23 21:48:57 3G/4G NOTICE dhcpcLteModemRelease 1051 sysCmd = ifconfig lte0 0.0.0.0
Jul 23 21:48:58 3G/4G INFO 3G Modem is plugged out.
Jul 23 21:49:55 3G/4G NOTICE modemUnplugedTime >=60s
Jul 23 21:50:55 DHCP NOTICE DHCPS:Recv REQUEST from 84:38:38:30:F1:EE
Jul 23 21:50:55 DHCP NOTICE DHCPS:Send ACK to 192.168.0.101

What could be the reason for this issue?