1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
Dismiss Notice

Welcome To SNBForums

SNBForums is a community for anyone who wants to learn about or discuss the latest in wireless routers, network storage and the ins and outs of building and maintaining a small network.

If you'd like to post a question, simply register and have at it!

While you're at it, please check out SmallNetBuilder for product reviews and our famous Router Charts, Ranker and plenty more!

DSL-AC68U: Wifi TX Rate drops to 5-7 MBit/s after FW Update

Discussion in 'ASUS AC Routers & Adapters' started by KaiSchu, Jul 10, 2018.

  1. KaiSchu

    KaiSchu New Around Here

    Joined:
    Jul 10, 2018
    Messages:
    3
    Hello!
    I did a research but couldn't find anything about the problem i am facing with the DSL-AC68U.
    As the topic says the TX rate of the wifi drops down to 5-7 MBit/s on both the 2,4 GHZ and the 5GHZ Band.
    This issue first appeared after upgrading the firmware to version 3.0.0.4.382_50302
    I tried downgrading to 3.0.0.4.380.7712 - 3.0.0.4.380_4291 but the issue remained.
    What else did i do? Doing a NVRam Reset, Flashing the router in recovery mode, flashing the router via gui.
    All settings on default except i turned off TX- Bursting now as a test.
    Currently 3.0.0.4.382_50302 is installed because as i said downgrading did not solve it.
    NVRam Reset -> GUI Flash -> Reboot -> NVRam Reset -> Configuration was the last attempt.
    Can't really figure outthe pattern: from almost 4 days working to 1-2 Minutes.

    Picture:
    Bildschirmfoto 2018-07-10 um 07.06.35.png

    Thanks for any help!
     
  2. Please support SNBForums! Just click on this link before you buy something from Amazon and we'll get a small commission on anything you buy. Thanks!
  3. KaiSchu

    KaiSchu New Around Here

    Joined:
    Jul 10, 2018
    Messages:
    3
    Tried to turn off "airtime fairness" on both bands.
    Router log shows following after a good hour uptime:

    Jul 11 16:25:18 rc_service: httpd 286:notify_rc restart_wireless
    Jul 11 16:25:22 kernel: wl_module_init: passivemode set to 0x0
    Jul 11 16:25:22 kernel: wl_module_init: igs set to 0x0
    Jul 11 16:25:22 kernel: wl_module_init: txworkq set to 0x0
    Jul 11 16:25:22 kernel: eth1: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982)
    Jul 11 16:25:22 kernel: eth2: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982)
    Jul 11 16:27:47 rc_service: httpd 286:notify_rc restart_wireless
    Jul 11 16:27:51 kernel: wl_module_init: passivemode set to 0x0
    Jul 11 16:27:51 kernel: wl_module_init: igs set to 0x0
    Jul 11 16:27:51 kernel: wl_module_init: txworkq set to 0x0
    Jul 11 16:27:51 kernel: eth1: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982)
    Jul 11 16:27:51 kernel: eth2: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982)
    Jul 11 16:28:34 rc_service: httpd 286:notify_rc restart_wireless
    Jul 11 16:28:38 kernel: wl_module_init: passivemode set to 0x0
    Jul 11 16:28:38 kernel: wl_module_init: igs set to 0x0
    Jul 11 16:28:38 kernel: wl_module_init: txworkq set to 0x0
    Jul 11 16:28:38 kernel: eth1: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982)
    Jul 11 16:28:38 kernel: eth2: Broadcom BCM4360 802.11 Wireless Controller 6.37.14.126 (r561982
     
  4. Grisu

    Grisu Very Senior Member

    Joined:
    Aug 28, 2014
    Messages:
    1,294
  5. psychopomp1

    psychopomp1 Senior Member

    Joined:
    Sep 5, 2012
    Messages:
    230
    Location:
    UK
    Why are people still using this router for DSL connectivity? IMHO it should be banned for sale at least in the UK, judging by the number of FTTC (vdsl2) lines it has messed up due to the notoriously unstable Mediatek DSL chipset it uses.
     
  6. Grisu

    Grisu Very Senior Member

    Joined:
    Aug 28, 2014
    Messages:
    1,294
    As the world is almost larger than only UK or US, and there are regions where it works just perfect like for me in the past (now got supervectoring/vplus so had to change modem only for that).

    I know some or even many got problems with their carrier, but for others running without any troubles and they would like to have AiMesh too.

    We should love to have new features >5 years !!!
    And they all could still use it as pure router!
     
  7. KaiSchu

    KaiSchu New Around Here

    Joined:
    Jul 10, 2018
    Messages:
    3
  8. ColinTaylor

    ColinTaylor Part of the Furniture

    Joined:
    Mar 31, 2014
    Messages:
    6,756
    Location:
    UK
    At the risk of stating the obvious, the TX rate is so bad because the signal strength from your router is so low. -95dBm :eek: I'd have to stand 3 houses away from my router to get a signal strength that low.

    Check that the antennas are attached tightly and that the sockets aren't broken (rotating around and around on the case).
     
  9. Grisu

    Grisu Very Senior Member

    Joined:
    Aug 28, 2014
    Messages:
    1,294
    He has RSSI -53dB, that -95dB is noise interference signal.
     
  10. ColinTaylor

    ColinTaylor Part of the Furniture

    Joined:
    Mar 31, 2014
    Messages:
    6,756
    Location:
    UK
    Ah, good catch. :oops: In my defence I don't read German. :D
     
Please support SNBForums! Just click on this link before you buy something from Amazon and we'll get a small commission on anything you buy. Thanks!