Configure ZTE MF825a Airtel 4g dongle with Dlink DIR-506L Shareport Go 3g/4g Router

Dongle : ZTE MF825a 4g modem
Firmwire version: BD_MF825ATRAV1.0.0B01



Router: Dlink DIR-506L SharePort Go
H/W Ver: A2
F/W Ver: V2.15


I was researching for a router to share the internet for my Airtel 4G dongle.
Two options finally  I had was TP-Link MR3020 and Dlink DIR - 506L.

Both had mixed reviews of its support and more negative ones. But finally I decided to go for Dlink as TP-Link has reviews about its range problems and Dlink has a power bank with 1700mAh battery.

The installation was so easy than I have expected. Here are the steps I have followed.


  1. Switch on the router
  2. Connect the dongle in the USB port
  3. Wait for the green light (4g) in the dongle.
  4. Search for the WiFi networks in your laptop and connect Dlink_DIR-506L SSID. (It wont ask you any password when u log in for the first time)
  5. In your web browser, go to http://dlinkrouter.local.
  6. Give username as admin (it may take it by default) and leave password column blank and login
  7. Go to the easy set up connection wizard and select 3g/4g modem option.
  8. Sim card Pin column left it blank
  9. Give a security password
  10. Wait for a  minute while the modem reboots
That's it. you have configured your modem. 

Search the WiFi networks again and connect to router again. This time you have to enter the password of WEP/WPA key.

Now you can see the green led on our zte modem started blinking. This shows your modem is configured.

The signal strength is too good that only one network bar is dropping when I place the router at one end of my 3bhk house and access internet on other end.

The only problem I have faced is about the speed. Im getting only around 2.5 Mbps through the router while I was getting around 8 Mbps when I plug in the modem directly to computer. I will need to research a bit to change any settings to improve the speed.

I willl update my post once I solved this problem. Please post as a comment if you have found any solution.