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[alpha] Early preview builds for Asuswrt-Merlin 380.66

Discussion in 'Asuswrt-Merlin' started by RMerlin, Mar 6, 2017.

  1. Shonk

    Shonk Senior Member

    Joined:
    May 7, 2014
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    363
    I only use wifi for phones and such really everything else in the house is wired
    anyway the other day i connected my xbox one wireless on the 5ghz band
    to play overwatch (its usually wired) and was getting 2 seconds running on the spot all the time
    every 2mins or so switched it to 2.4ghz after the game still doing it

    turned off airtime fairness next game on both bands hasnt done it since
    the only other devices connected in the house where two
    Galaxy Note 4's both idle one on 2.4ghz band one on 5ghz

    why would airtime faireness cause such lag on an idle network
     
    Last edited: Mar 16, 2017
    Chris313AllNight likes this.
  2. DaveMishSr

    DaveMishSr Very Senior Member

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    This was not the thread for asking that question, again. This thread is for issues arising from the 66 alpha firmware. Eric would have announced his intent to support that model if he intended to do so. Also, why are you interested in beta testing Merlin's firmware. I am sure that Asus wants you to use the stock firmware for testing seeing as they sent you a complimentary unit.
     
  3. DaveMishSr

    DaveMishSr Very Senior Member

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    That is difficult answer. This link should help you understand what airtime fairness is and how it could affect your individual network clients and under what circumstances.

    https://routerguide.net/airtime-fairness-on-or-off/
     
  4. RMerlin

    RMerlin Part of the Furniture

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    Wifi is a complex technology, where timings can be critical. Doesn't take much to create compatibility issues with other devices. MU-MIMO, Airtime Fairness, Beamforming - those are all extensions that haven't been fully tested by everyone involved (i.e. both the router AND the client manufacturers).
     
  5. Naftali Oziel

    Naftali Oziel Regular Contributor

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    If am in N only mode, is there a purpose for airtime fairness to be enabled?
     
  6. Skywalker

    Skywalker Occasional Visitor

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    Running for a couple of days on my RT-AC66U now, Wifi 5G seems to be more stable then on 380.65.
     
  7. DaveMishSr

    DaveMishSr Very Senior Member

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    Airtime fairness is mostly used when you have slower legacy devices paired with newer, faster devices. These devices need more resources to accomplish similar workloads so they take away resources from faster network clients. So enabling airtime fairness decreases the performance of faster devices when you have them connected with legacy devices on the same network.

    Edit: I originally misspoke here and said increases instead of decreases. Sorry for the confusion. :rolleyes:

    You should be able to see where this is going. By selecting N only you have narrowed the network protocols to one so you have eliminated the slower network protocols. Therefore, airtime fairness becomes irrelevant. While it shouldn't affect your network performance if it were to be enabled, I am always of the mind that less is more. In this specific instance I would not enable it.

    I should have also included:
    1) long physical distance
    2) weak signal strength,

    as being contributing factors to slow the speed of wifi devices.

    Here is a link which better explains airtime fairness. I strongly encourage you to read it in its entirety.

    https://routerguide.net/airtime-fairness-on-or-off/
     
    Last edited: Mar 19, 2017
    heysoundude and rtn66uftw like this.
  8. stambeccuccio

    stambeccuccio Regular Contributor

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    Italy
    ...not exactly:
    The relatively “slow” wifi speed devices can be slow from:
    1) long physical distance
    2) weak signal strength,
    3) or simply being a legacy device with older technology.
     
  9. Reinvented

    Reinvented Regular Contributor

    Joined:
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    Here to report, I've put a load on my router and it's still doing just fine. Connections are holding up, and the QoS is classifying traffic correctly.

    However, I do have one problem that I've had since 380.65 and that's the Traffic Analyzer isn't showing any incoming traffic on the 5 GHz or 2.4 GHz network tabs (the blue colored), which is pretty strange still. Is there something to remedy this?
     
  10. WET

    WET Occasional Visitor

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    I have now determined that one client of mine had a print spooler problem which I have now corrected. I have had no issue with my wired HP Printer on 380.65, 380.65-2 or 380.66 alpha2 which I am now running on.
     
    heysoundude likes this.
  11. quant88

    quant88 New Around Here

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    Flashed 380.66 to my RT-AC88U. Basic wifi functions are working ok. Not using QOS and VPN features.
    However, I am unable to print on the Samsung wireless printer with this alpha version. Revert back to 380.65_2 and it is wifi printing is fine.
     
  12. RMerlin

    RMerlin Part of the Furniture

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    Have you read the included Changelog?
     
  13. Blinkyz

    Blinkyz Senior Member

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    Changelog
    Known issues:
    * Some wifi clients such as wireless printers
    have connectivity issues. Try disabling
    Airtime Fairness as a potential workaround. ;)
     
    Last edited: Mar 18, 2017
    joltdude likes this.
  14. DaveMishSr

    DaveMishSr Very Senior Member

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    You are correct. However, I posted "mostly used", specifically spoke to item #3 and included a link that went over airtime fairness in much greater detail. Thanks for your clarification though.
     
    stambeccuccio likes this.
  15. Radiohead

    Radiohead New Around Here

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    Stable after 7 days running. http://prntscr.com/elwf0v

    The only issue is after a reboot I need to stop and restart the secondary WAN connection before it goes to standby. But then this has been the case with previous versions as well. Is this default behaviour? Fail over and fail back work well with a FTTx and a DSL connection.
     
  16. wsarahan

    wsarahan Senior Member

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    So far this build have way more stable Wifi over the latest Asus FW 7266

    Just a question, by default the Airtime Fairness is enabled, i have no idea what this thing does, just read here inthe topic that some people are disabling it because of printes....

    I don`t have a printer in my enviroment, should i let this on or off? Mimo is on as well in both 3 bands

    Thanks for the nice work again @RMerlin
     
  17. Sanna1967

    Sanna1967 Very Senior Member

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    In 380.65 enabled by default also.I dont have printer too.I have no problems with my other wireless devices, so I left it by default (on).
    If it is not broken, dont fix it :)
     
    wsarahan likes this.
  18. kibosh

    kibosh Regular Contributor

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    You are using 380.65 which is based on an older GPL. Asus broke airtime fairness sometime after, that is why you don't have an issue.
     
    wsarahan and Sanna1967 like this.
  19. wsarahan

    wsarahan Senior Member

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    So should i let this one or or off in this alpha2 build?
     
  20. bluepoint

    bluepoint Very Senior Member

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    Test it yourself. Airtime fairness seems to have an effect with my two sons iPhone 7/7+ that are both at the edge of the wireless range(-70dBm) with intel modems(AT&T). Both are complaining lags when streaming video when "airtime fairness" is enabled. Disabling AF solves that problem. Ill see hopefully, when iOS 10.3 is released next week possibly new intel driver will be introduced and solves the lagging.
     

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