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2,4 Ghz band module crashes on rt-n66

Discussion in 'ASUS Wireless' started by spl, Dec 8, 2017.

  1. spl

    spl Occasional Visitor

    Joined:
    Oct 1, 2013
    Messages:
    19
    Hello.
    I have 3 RT-N66U routers.
    All they are running on different Merlin FW versions.
    In random time 2.4 module break up my connection and after that not visible for 2.4Ghz wi-fi modules.
    But if module supports dual band, 5Ghz still visible for connect.
    Only reboot helpful for solve this bug.


    No, i can't jump to 5Ghz range only.
    I have a lot of old hardware, like Smart TV, PSP and anothers.
    Hardware reset dosen't help to me at all routers.
    So issue somewhere in FW.
    Maybe i should raise up log lvl and monitor log for system errors.
    Routers wasn't overheated. At one of routers i installed cooler with independent power(USB from paspberry)

    Routers was bought in different years.
    In one of it(with cooling) inserted micro sd card for ipkg repo

    Any ideas, suggestions how to solve?
     
  2. PolarBear

    PolarBear Regular Contributor

    Joined:
    Apr 14, 2015
    Messages:
    139
    Location:
    North of the Alps
    Hmm, really needs more information befoe anyone can start to offer ideas.

    Are the 3 routers in different buidings, or are they in the smae building and close together so they can "see" eachother ?

    If the are close together, are they connected together ? Are they all configured as routers, or are 2 of them in Access Point mode ?

    A diagram would be very helpful.
     
  3. spl

    spl Occasional Visitor

    Joined:
    Oct 1, 2013
    Messages:
    19
    They don't connected together.
    Different apartments in different city districts.
    So i mean same situation on not linked routers which was boughted in different time.
    Oldest(something about 5 years)
    Newwest 2 years.
    Issue was sawed first time about one and half year ago, winter-spring 2016.
    JFF i can revert oldest firmware at one of router and watch on it for some time.
    How about 2 or 3 year old firmware.
     
  4. spl

    spl Occasional Visitor

    Joined:
    Oct 1, 2013
    Messages:
    19
    Just disconnected with only one entry in log:

    Dec 15 18:49:42 crond[314]: time disparity of 1249489 minutes detected
    Dec 15 19:00:02 disk_monitor: Got SIGALRM...
    Dec 15 19:49:20 miniupnpd[675]: upnp_event_recv: recv(): Connection reset by peer
     
  5. sfx2000

    sfx2000 Part of the Furniture

    Joined:
    Aug 11, 2011
    Messages:
    13,581
    Location:
    San Diego, CA
    Check your WiFi client adapter and drivers for it.

    2.4GHz instability isn't a major issue, and since you see this on three different Router/AP's, it's likely not AsusWRT, but the adapter on the client.
     
  6. spl

    spl Occasional Visitor

    Joined:
    Oct 1, 2013
    Messages:
    19
    It happens for 2,4 and 5 g bands, depends on which band i connected.
    But it's it 2,4 to it dosen't visible for all clients in range.
    Now i turned off upnp and looks like it stable.
    And rasied up log level.
    I think tomorrow i will enable upnp.
    Then i will see.
     
  7. bbunge

    bbunge Very Senior Member

    Joined:
    Aug 11, 2014
    Messages:
    620
    Location:
    Pennsylvania USA
    Security wise better leave upnp turned off.

    Sent from my P01M using Tapatalk
     
  8. spl

    spl Occasional Visitor

    Joined:
    Oct 1, 2013
    Messages:
    19