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    Cannot get more than 5mbits with the WLAN connection on my N900

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    cb22 | # 11 | 2010-05-03, 02:10 | Report

    Writing to the flash memory is slow? I've seen speeds of 10MB/s easy when copying files over USB onto the internal flash, thats ~80Mb/s and should easily be able to cope with a wifi connection...

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    Jaco2k | # 12 | 2010-05-03, 14:41 | Report

    yeah, I think something is up with this. Might log an error report and see where it leads...

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    benh_n900 | # 13 | 2010-05-03, 14:53 | Report

    I have noticed that when I SCP files over wifi it is painfully slow - 300KB/s (as measured by filezilla)

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    God_Lx | # 14 | 2010-05-03, 18:03 | Report

    I can get around 8mbits with the powersaving setting to the max, so it's definitly not a wireless problem...

    Tried with any other router or AP ?

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    esthreel | # 15 | 2010-05-03, 18:22 | Report

    Maybe this is router problem, I am using ASUS WL-500W.

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    stlpaul | # 16 | 2010-05-03, 18:25 | Report

    Originally Posted by cb22 View Post
    Writing to the flash memory is slow? I've seen speeds of 10MB/s easy when copying files over USB onto the internal flash, thats ~80Mb/s and should easily be able to cope with a wifi connection...
    But the writes tend to block all I/O and use 100% CPU waiting, which could(?) interfere with wifi driver operation. It was a theory.

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    Gobelet | # 17 | 2010-05-03, 18:48 | Report

    Remove the encryption. You'll get wayyy faster speeds, but absolutely no security... That's one way.

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    thecubed | # 18 | 2010-05-03, 18:59 | Report

    A quick iperf test from my wireless laptop as server to my n900 as client shows around 6.86Mbps.

    I'm using a DD-WRT'd WRT54g. Powersaving is enabled on my n900.

    Well, apparently it's not the SSH encryption making my SCP transfers so slow.


    EDIT:
    Powersaving on/off/intermediate has no effect at all for me. It stayed within the ballpark of 6.86Mbps with each setting. I even disconnected from wireless then reconnected. Short of a reboot, I don't actually know if the settings took effect or not.

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    Last edited by thecubed; 2010-05-03 at 19:03. Reason: Add more infos...

     
    Joorin | # 19 | 2010-05-03, 19:13 | Report

    Originally Posted by Jaco2k View Post
    Hi all,

    I have a 30mbits connection at home (verified) and connecting from my laptop via WLAN I can easily get ~22mbits (WPA2, WirelessG)

    Connecting with my N900, be it to this AP or to any other (e.g. Public ones that I know are very fast) I cannot get past 5mbits download.

    What's the matter? Conky tells me I am connected at 54mb/s and quality is good, so...

    Anyone seen similar behaviour?

    Cheers,
    J
    How did you measure the speed? Downloading random files from the internet is not reliable.

    And as others have written already, check power saving and send power.

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    Gobelet | # 20 | 2010-05-03, 22:10 | Report

    No, I mean the WEP/WPA encryption. For example on my WRT610N with a Wifi-N card that "syncs" at 300Mbps, I can get transfers at about 18 MBytes/s, and if I enable WPA, it falls at about 8 MBytes/s.

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