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Thread: Chanalyzer = packet loss

  1. #1

    Default Chanalyzer = packet loss

    Hello forum!

    Trying to run chanalyzer on my pc to connect to my cisco cleanair-enabled AP's. But when the chanalyzer program starts packet loss starts to happen. Packet loss before opening chanalyzer 0,1% - packet loss with chanalyzer open = 10+%

    I even tried another wlan adaptor with same results.

    Any suggestions?

  2. #2

    Default

    Click image for larger version. 

Name:	chanalyzer closed.png 
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ID:	1061Click image for larger version. 

Name:	chanalyzer.png 
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ID:	1062

    Proof: - First screenshot is after I closed chanalyzer. First is with chanalyzer open.

  3. #3
    Join Date
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    Default

    I posit that the continuous pinging is causing a busy condition resulting in timeouts.
    In essence there are two nic's competing for hardware resources on your PC.
    What are the CPU loads on the AP's and the PC? Are there other bottlenecks on the PC?
    Use perfmon.msc to diagnose the situation.
    Old Mod by the Sea

  4. #4

    Default

    Quote Originally Posted by ua549 View Post
    I posit that the continuous pinging is causing a busy condition resulting in timeouts.
    In essence there are two nic's competing for hardware resources on your PC.
    What are the CPU loads on the AP's and the PC? Are there other bottlenecks on the PC?
    Use perfmon.msc to diagnose the situation.
    Every other nic is disabled. No other traffic is active on the PC.

    CPU load on pc = < 1%
    CPU load on AP = < 1%

  5. #5

    Default

    Hello again

    This just could not be right, almost new corei7 4ghz PC but onboard broadcom wlan nic, which is what I suspect now after I reinstalled my pc (ghosted) and packet loss is gone running chanalyzer.

    Basically I'm trying to confirm the cpu on the nic is the bottleneck - I suspect its the 80Mhz bandwith it does not like.

    Will keep you informed.

  6. #6

    Default

    Update: Packet loss is now gone when using chanalyzer, but ping times are up from 1-2ms to 100+ms. I still think the wlan onboard nic is the bottleneck.

    Wont update any further because this is getting off topic
    Last edited by nifo; 12-15-2015 at 02:47 PM.

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