- Many suggest a minimum of 2A output (voltage depending on your router's requirement)
- Some routers like MR3420V2 have circuit board that filter the power output of the USB port to 900mA/1A, using higher output power adapter might not help.
- Router like MR3020/WR703N (not sure about MR3040) should be the best option as it doesn't filter the power output and the modem toggle works as expected.

- Consider getting a Y-Dual power USB adapter or a powered USB Hub.
- It helps in most cases especially when you're in a very good signal area, but when a fluctuate of signal below a certain threshold, the modem will go into a state that doesn't allow it to reconnect
- Usually this will automatically be resolved by the ROOter firmware if you've "Enabled with Modem Toggle" select in the "Connection Keep Alive" option under Modem > Connection page
- Since the modem is connected to a powered hub, the power toggle doesn't really happen. The only way is to unplug and plug back in the modem.

Use an extension cable to hunt for good signal reduce the interference and prevent the modem from blocking the 3G modem.
WARN : Get a good one with thick cable and ferrite core is a plus!

Get the firmware update package from here : Download Links
WARN : Please get the correct version base on your Router hardware version!

1) Open the Router webUI and navigate to the firmware flashing menu.

2) Select your appropriate firmware.

3) Confirm you don’t make mistake

4) Flash it, it shall take a few moment.

1) The default WebUI is 192.168.1.1 Just click login, password is not required .
Note : Please do not plug in any USB modem at this stage.

2) Click the link above to set your password.

3) Save it after you got it done.

4) Click Modem > Connection and fill in your APN according to your ISP.
You can follow me if you use Maxis. Set your desired DNS if you want to

5) Plug your USB modem and it should connect. You can verify it on the “Status” page
Note : Initial detection takes around 5 minutes.

1) Navigate to “Information” tab under the “Modem”. If you see the information as below means this tutorial works for you.

2) Open the “Custom” tab and paste the command below and click “Submit”


If everything works correctly, an “OK” will be replied. If “Error” or nothing is shown. Reply below
Note : It take a minute or two to load.

3) Reboot your router, everything should work properly now and connect as usual now.
You can verify it on the “Status” page
Note : Initial detection takes around 5 minutes.

You can maintain the stability with the Modem Keep Alive function which keep your internet up.

You can access to this on the "Modem" > "Connection" page

Enable	Ping the connection to keep it active
Enable with WAN restart	The connection will be disconnected and reconnected when there is a fail ping.
Enable with modem toggle	USB Modem will be restarted (Power Cycle) when there is a fail ping.

E3276s-150
how to enable Ndis and Ras option on E3276
AT^SETPORT=”A1,A2;10,12,13,16″
HUAWEI E3276 modem a PC UI Interface, DIAG, MODEM port open. Ndis and ras
AT^SETPORT="A1,A2;10,12,13,16,A1,A2"
- Sets all settings to default.

E398
AT^GETPORTMODE
- Display currently active mode
AT^SETPORT="A1,A2;1,2,3,7,A1,A2"
- Set default configuration
AT^SETPORT="A1,A2;1,2,3,7"
- Disable CD+SD after modeswitch
AT^SETPORT="A1,A2;2,7"
- Disable CD+SD+modem after modeswitch, keep PCUI and Win7 NDIS mode
AT^SETPORT="A1;2,7"
- CD only, after modeswitch PCUI + NDIS