Usb port how do you use it

you try form USB or LAN interface \\Ethernet connection (recommended)

1. Plug one end of the RJ-11 telephone cable into an unfiltered telephone wall jack (enabled for Sympatico High Speed Internet service).
2. Plug the other end of the RJ-11 telephone cable into the DSL port on the back of the modem.
3. Plug one end of the RJ-45 Ethernet cable into your computer's Ethernet port.
4. Plug the other end of the RJ-45 Ethernet cable into the Ethernet Port 1 on the back of the modem.
5. Insert the rounded end of the power adapter into the Power port and the dual-pronged plug end into your power outlet.
6. Press the power button to turn on the modem.

USB connection

1. Plug one end of the RJ-11 telephone cable into an unfiltered telephone wall jack (enabled for Sympatico High Speed Internet service).
2. Plug the other end of the RJ-11 telephone cable into the DSL port on the back of the modem.
3. Plug the small, square end of the USB cable into your computer's USB port.
4. Plug the wide, flat end of the USB cable into the USB port on the back of the modem.
5. Insert the rounded end of the power adapter into the Power port and the dual-pronged plug end into your power outlet.
6. Press the power button to turn on the modem.

Are you using EXTERNAL HARD DRIVE, which means the hard drive is in a box, and you connect it to computer with USB cable? If so, do the following
1. Try to plug and unplug and plug USB cable at the port on computer. 2. While plugged in, try to shake the plug a little. 3. Try to plug the USB cable to USB port at the back of the PC case, not the port at the front 4. Check the usb cable, buy a new one, or borrow one (its cheap) 5. Still does work? bring it to Customer service, there must be an error on the box itself.

I had the same trouble I noticed that it acted differently on different usb ports strange but it happened, swap to a different port, if the battery animation isnt moving that it hasnt synced properly i noticed that it especially didnt like working with my front panel usb ports, switched it around tot he back and it charged just fine

there rs232 to usb cable converter, you just buy it, and you got rs232 to usb connetor

An external storage-device has four major components:

* the USB cable

* the power-adapter

* the disk-drive inside the enclosure

* the USB-to-disk-drive adapter inside the enclosure.

One of these components has failed.

Try a different USB cable.

Try connecting to a different USB port on your computer.

Try connecting to a USB port on a different computer.

Take a "multi-meter" and measure both the voltage and amperage output from the AC adapter, and compare with the specifications on the label on the adapter.

Open the enclosure, and remove the disk-drive, and then connect it as a "slave" disk-drive in a desktop computer, to see if it works at all.

Purchase a new, compatible, disk-drive, and install it in the enclosure, to "revive" your external storage device.

Get the part-number and serial-number from the label on your disk-drive, and access the manufacturer's web-site, and use "check warranty status", to see if they will replace the device, at minimal cost to you.

There exist commercial "data recovery" services that can try to repair your device, just long-enough to rescue and copy your files. For example, see: https://services.seagate.com/index.aspx?lng=en-US for a "no data - no charge" guarantee.

Your USB ports may be version 1.1

You need a USB "Y" cable.
The USB Y cable uses two USB ports on your laptop and the third plugs into the external HDD.

Check RadioShack or maybe the vendor has a USB Y cable.

This will work!

Ensure the plug at the wall socket is on. Try a differenr USB port.

http://www.insignia-products.com/pc-304-15-insignia-75w-dvdcdhd-radio-compact-shelf-system-with-usb-port.aspx

its here

i hope that is a USB driver issue when u plug your device does your computer detect any usb device and then its says unknown/unrecoginzed device. You have to check the cables first then you download USB2.0 driver install it inyour computer andl aslo try to connect the device in another port also put the the driver cd for the TV/projector

"Not always" means that it does work sometimes. If so, look to cable or connection.