USB dongle (CDMA) not recognised in a particular USB port

1) uninstall old any  MTS  usb dongle softwares and its drivers completely

2) some of the folders with unwanted will be stored in   C drive

C\PROGRAM FILES
C\PROGRAM DATA     this folder is hidden
C\USER\YOUR USER NAME\ APP DATA

checks all the folders clearly

3) restart computer

4) install  TATA DOCOMO USB DONGLE device software , internet software too

now access your internet
5) here is the link tata DoCoMo contact us page   

http://www.tatadocomo.com/contact-us.aspx

goodluck

Hey Shantanu,

Thanks for spending time with my problem.

I don't have a problem with all USB ports in my laptop. It is only a particular port which I used for MTS MBlaze all the time. I use a Photon Plus dongle now. It works in all ports except the one in which I used to insert the MTS dongle. I am guessing it should not be a driver issue. In any case I have completely uninstalled the MBlaze software. This I did before installing Tata Photon Plus stuff. The port in question works perfectly if I use flash drives, cameras even my new Lumia 620 (which BTW is a great phone for considering its very reasonable price!!).

1) uninstall old any  MTS  usb dongle softwares and its drivers completely

2) some of the folders with unwanted will be stored in   C drive

   

C\PROGRAM FILES
C\PROGRAM DATA     this folder is hidden
C\USER\YOUR USER NAME\ APP DATA

checks all the folders clearly

 

3) restart computer

4) install  TATA DOCOMO USB DONGLE device software , internet software too

now access your internet
5) here is the link tata DoCoMo contact us page   

http://www.tatadocomo.com/contact-us.aspx

 

goodluck

Dear Shantanu,

Thanks again.

It does not look like a hardware issue because other devices like mobiles, cameras and pen drives work fine.

Thanks anyway.

This might be happening if any of the security software protocol is interfering with the enabling of the dongle. Disable the security software protocol and check if the dongle is enabled.

To disable security software protocol

1.       Open Change adapter settings by clicking the Start button, and then clicking Control Panel. In the search box, type network, click Network and Sharing Center, and then, in the left pane, click Change adapter settings.  

2.       Right click on the device that you want to enable.

3.       Go to Properties.

4.       Disable any Security Software Protocol.

5.       Save the changes and check if you are able to enable the dongle.

You may also contact the MTS r to make sure if there are any patches required along with the drivers. Sometime there are patches available from manufacturer's like the pre-requisites that needs to be installed first for the USB dongles.

Please make sure you've installed the latest BIOS as well as the latest Intel chipset drivers for your machine

1) have you checked in safemode , put your dongle particular ?

Sir,

Myself Sanjoy. I am using MTS Ultra dongle(model ZTE AC2792) April-2014. But recently my dongle did not work. When I insert it to my USB port a small appears showing "Cannot Access Serial Port Make Sure You Have Appropriate Permission". I am using Windows7 Ultimate. For this I have made several times installation & re-installation of my MTS dongle software, but the problem remains same. But this dongle work properly in other PCs & Laptops. So, kindly help me out.

try to use in safemode

try to use in administrator account