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OPTUS E3131 USB Modem

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How to
Troubleshoot
Specs

Lower speeds than expected

This troubleshooting guide will take you through a number of possible causes to help you find a solution to your problem.

OPTUS E3131 USB Modem/Windows Vista
OPTUS E3131 USB Modem/Windows Vista

We found 3 possible causes:

  1. You're downloading files using a peer-to-peer program
  2. You're abroad
  3. No 3G connection established
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