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printing a document bumps the USB 3G / 4G broadband adapter offline.

Posted on 2013-05-11
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Last Modified: 2013-05-28
Hi, I have a friend that has a printer in his office and has a usb running to his desk, and when he brings his laptop in he just plugs the printer in whenever he needs to print something.

Latley when he connects it to his laptop, his internet connection goes out. He has no wifi in his work but he has a USB 3g 4g broadband adapter he uses for his internet connection.

Also for some reason his broadband adapter will only work on the right hand side, the left side usb ports will give an error with the broadband card. But when testing the left side USB port with a USB drive, it gave no errors or anything when copying data. My guess is the USB on the right side is board mounted, the left USB may connect to the board with a cable so may be lower power. But the printer always worked fine on the left port. And it still does, the only problem is it bumps him offline soon as he connects it.

He took the usb adapter to sprint and they did testing on it and they said it is functioning normally and passed all tests.

 I told him to take his laptop home and try to print with his home printer as a test to see if he gets disconnected with his 3g 4g card, and he did not get disconnected at his house.when plugging in his home printer into the usb on the left side. So it seems the problem is the printer or the usb printer cable? Never heard of this one, does anyone have any ideas?
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Question by:hydrive1902
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nobus earned 500 total points
ID: 39157750
if it worked before -  a system restore can help quickly
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by:hydrive1902
ID: 39202105
System restore went through but it did not help. But I had the customer plug in a USB  hub into the right side of the laptop and don't use the left side usbs and that does the trick.
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Expert Comment

by:nobus
ID: 39202238
you can also use a POWERED hub, like this - much more trustworthy
http://www.belkin.com/IWCatProductPage.process?Product_Id=158910
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