QUOTE(texas5 @ Feb 10 2013, 04:31 AM)
my MR3420 V2 frequently DC..already upgrade to latest firmware..is it my E367 problem? try to flash to openwrt and sucssesful..but have no idea how to connect to 3G..

does it auto connect or we need to manually setting the openwrt?
on your V2 original TPLINK stock firmware,
under the 3G/4G in network setting,
IDLE timeout: 0 <-- need to set zero so it wont DC
if u did V2 openwrt : just follow below to setup
- login 192.168.1.1 ( you will see LuCI Gui interface )
- click login
- go to System
- go to Administration
- key in your new password ( For web Gui )
- re key in your same password again
- click save and apply
- go to Network
- click Edit on Wan ( 3G wan )
- select UMTS/GPRS/ED-VO protocol
- click switch protocol
- Modem device ( ZTE modem = /dev/ttyUSB1 , Huawei modem = /dev/ttyUSB0 <- last is zero )
- service type : select UMTS only or UMTS/GPRS
- Key in your ISP APN , ( Unet, Maxisbb, bbnet, celcom3g, u3g, my3g and so on )
- Go to ADvance setting
- Modem init time out: 5 ( key in )
- Use gateway Metric : 0
- Tick the box of : if uncheck, No default route is configure
- Use custom DNS server : 8.8.8.8 click the icon at the end
- second roll: 8.8.4.4
- LCP echo failed Threshold : 0
- LCP echo interval : 5
- Inactivity timeout: 0
- select Wifi
- click Edit
- select your wifi prefer channel 1~11
- enter your wifi name in ESSID
- go to Wireless security
- encryption : WPA2-PSK
- key : wifi password
- click save and apply
- then click enable to on your wifi ( if u need it )
- now go to System
- Reboot
- click Performs reboot
- plug in your Usb modem after
- wait for reboot finish and enjoy