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I am trying to use a usb 3G dongle on my system that has MSI 970A-G46 motherboard. I am facing a bit issue with the connectivity. I have a 3G sim connection and it works well on my office pc. But there is some problem with my home system. When I connect I can see the bandwidth dropping. After connection the driers were installed but a few time I am getting a usb malfunctioning error. I am trying to find the usb driver but the existing one are not working which are on msi site.
The drivers that you had found are the latest one. There is no other place you can find any different drivers. You can try updating it once again and uninstall the 3G dongle software from the system. Then install it back. Most of this usb dongle comes with their own driver and if you are getting the error then you can try using a different usb port. If you are still getting error on that then try to connect the usb dongle on the backside of your pc.
This is not a driver problem. It is a hardware issue according to me. You can try re-installing drivers, but better remove the old one and you can only find drivers from the official site. There is no other way you can get different drivers. I had bought a pci usb card which gave me 4xusb 3.0 ports on my system. My existing usb 2.0 connectors were not working so well. You can also go for that.