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    SubjectSierra Wireless (MC8780) HSDPA speed issue

    I have a Sierra Wireless MC8780 UMTS card in a Fujitsu S6410 laptop running
    kernel In kernel sierra driver v1.3.2.

    The card works but speed seems limited to approx 1.0 Mbit/s download using the
    linux driver. Testing the card in Windows XP yields download speeds close to
    5.0 Mbit/s.

    I recently updated the firmware of the card to support HSDPA/HSUPA. The update
    gave the desired result in Windows but not in Linux. The speed improved in
    Linux but didn't increase above 1 Mbit/s.

    Is there any known driver limitations or is this a configuration issue?

    Please let me know if you need any additional information.

    Best regards, Ralf

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