usb extension cable not working on e1750

[:Akintex:]

usb extension cable not working on e1750
i am using 1 m. usb extension cable on usb2.0 port.
modem connected and then disconneted.

without cable working fine. but low signal.

how can use usb extension cabel.

[sandeep88822]

get a better usb cable

[:Akintex:]

i change d the usb extension cabel.

an upgrade the firmware too. 11.126.13.00.00
on 3g network it continus connected . and working.
but ,
when i connet with 2g network its connected and after some second

and then disconnect.