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Thread: "wash -i wlan1mon" ERROR: Could not filter packets - how to fix it?

  1. #1
    Join Date
    2016-Feb
    Posts
    4

    "wash -i wlan1mon" ERROR: Could not filter packets - how to fix it?

    Hi,

    I have TL-WN722N USB adapter with AR9271 driver and when I want to let it be in monitor mode by "airmon-ng start wlan1" and then use wash to see which networks around are WPS locekd by "wash -i wlan1mon" it retrives something like "ERROR: Could not filter packets". It's getting a bit more weired when I type "airmon-ng stop wlan1mon" - "...device is not in monitor mode" while I can see it should be when typed airmon-ng.
    Does somebody know whats wrong with that?
    Thanks a lot.

    Note I did not kill NetworkManager process.

  2. #2
    Join Date
    2013-Sep
    Posts
    264
    Note I did not kill NetworkManager process.
    You answered yourself to your problem...

  3. #3
    Join Date
    2016-Feb
    Posts
    4
    OK, I terminated all processes and got this msg: "ERROR: Could not open "wlan1mon" for capturing". While I can see my USB adapter is in monitor mode and the name is correct.
    If I turn on the adapter I get "ERROR: Failed to compile packet filter".

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