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    X220 3G mobile broadband problem with F5521gw

    Discussion in 'Lenovo' started by sniper_sung, Oct 11, 2011.

  1. sniper_sung

    sniper_sung Notebook Evangelist

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    Every several hours the connection drops, and without disabling and re-enabling the 3G mobile broadband F5521gw in Device Manager I am unable to re-connect.

    I have tried different network operators in different areas, all the same problem regardless of signal strength.

    Do I have a faulty modem?

    I tried to install the latest driver from Lenovo but that doesn't seem to affect the driver version of the modem at all.

    Any suggestions?
     
    sniper_sung, Oct 11, 2011
    #1
  2. domaxx

    domaxx Notebook Geek

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    you try to remove here the flag
     

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    domaxx, Oct 12, 2011
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  3. sniper_sung

    sniper_sung Notebook Evangelist

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    Already did that a long while ago. Didn't help at all. :S
     
    sniper_sung, Oct 12, 2011
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  4. ljwnow

    ljwnow Newbie

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    I have never encountered any problem with that card. May I just haven't kept it running that long.
     
    ljwnow, Oct 12, 2011
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  5. hitman_36

    hitman_36 Notebook Consultant

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    have you tried other modem using the same SIM card? Maybe it is your area that is affected?
     
    hitman_36, Oct 12, 2011
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  6. arc888

    arc888 Newbie

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    I have the same card in a T420s and have experienced similar issues e.g. signal suddenly drops off to one or two bars (from all bars lit up) or the network can no longer be found at all. Putting the same SIM in a 3g usb modem resolves the issue for me.
     
    arc888, Oct 13, 2011
    #6
  7. sniper_sung

    sniper_sung Notebook Evangelist

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    Usually if I keep using the connection then there's less chances I encounter this problem. When I leave my laptop idle for a night, it will 99% happen.
    I have similar problems in my Nexus One and iPhone 3Gs.
    So it's likely a driver issue of the 3G adapter - it cannot recover correctly from a bad / lost connection.
     
    sniper_sung, Oct 13, 2011
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  8. GomJabbar

    GomJabbar Notebook Consultant

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    I have seen a similar problem with a Sprint USB modem at work. The solution there was to bring up task manager (ctrl + alt + del), go to processes and delete the Sprint process (don't remember the exact name, but Sprint was part of it). Now launch to the Sprint connection software and restart the connection.
     
    GomJabbar, Oct 13, 2011
    #8