
If you get response OK, you just set up your modem to be acting only as a modem, not a card reader/CD drive -> This might be only specific to Huawei e1750 modem. You need to find the right AT command for the modem you are using.Ĩ- Type AT^U2DIAG=0 and press enter. Select "Series" Enter the "COM(Number that u get previously)" and hit "Open"Ħ- Type AT, if you get response OK, that means your modem is communicating.ħ- Type AT^U2DIAG? and note the number you get as response in case you ever want to change the settings of modem back -> This might be only specific to Huawei e1750 modem. Open device manager and click and expand "Ports (COM & LTP)" and take note of “Huawi Mobile Connect – 3g PC UI Interface” port number.ĥ- Now Run the Putty.exe that you previously downloaded.Copy the drivers setup files from the mounted USB CD-ROM modem drive and save it in a different location (The copied files will be used on the ESXi hosted Windows virtual machine).Install modem drivers/software on your PC (Not on the virtual machine).

The modem used is Huawei e1750 (Different USB modems might have different AT commands).However, this should probably work on old versions as well. To get around the problem I had to send an AT command to the USB instructing it to working only as a USB modem instead of a CD-ROM.


This prevents the device from being passed to the hosted Windows machine as a USB device. The problem lies in the fact that the USB is being mounted as a CD-ROM drive to help the users install the drivers. I have found a solution that I would like to share with the community.
