B/G Protection on RT-AC66U

Discussion in 'Routers' started by tbosa, Aug 26, 2012.

  1. tbosa

    tbosa New Around Here

    Aug 14, 2012
    Hello. I've searched and cannot find a direct answer to what the little check box for "b/g protection" next to the "wireless mode" drop down box in all ASUS routers' firmware does for a person. Does it mean it "protects" wireless b by making sure the router stays compatible for B devices? Or, does it mean it adds some kind of extra security to the B and G wireless transmissions? I don't have any B devices in my house and unless this setting does something else for me, I'd rather disable it.

    Thanks in advance!
  2. Log in / Register to remove this ad

  3. tipstir

    tipstir Very Senior Member

    Aug 16, 2008
    South Florida
    Protection mode refers to a mechanism for the G radio. Since a legacy B radio device would not decode radio signals at G rates, a protection mechanism was developed for the new G radio and the B radio to co-exist on the same network. When protection mode is enabled, every packet sent on the G rate would require initiation of the sender.
  4. thiggins

    thiggins Mr. Easy Staff Member

    May 18, 2008
    Enabling "B/G" protection ensures that the AP waits long enough for these slower protocols.
  5. professordave

    professordave Occasional Visitor

    Jan 22, 2013
    Suppose there are no b clients, but there are several g clients.

    I currently run without this checkbox.

    I have an ac66u, no ac clients yet, just some n and some g clients.
  6. RadoFan

    RadoFan New Around Here

    Jul 8, 2015
    Can I disable b altogether on an RT-AC66U?
  7. sfx2000

    sfx2000 Part of the Furniture

    Aug 11, 2011
    San Diego, CA
    Recommendation is not to disable 802.11b - not that one wants 11b clients to attach to your AP, but just in case there are other 11b networks (such as Printers using AdHoc) - if they cannot understand your AP's beacons, they have a good chance of stepping on your network...

    I generally run my 2.4GHz in mixed B/G/N mode, WPA2-AES - most 11b clients can't do WPA2, so this is a good way of keeping them off your WiFi...

    Ideally, one doesn't want any 11b around, as it can take an 11n network down into non-ERP* protection, and this can have a significant impact on the 2.4GHz band.

    ERP mode is also known as 11g
    HT is 11n
    VHT - while not official in 2.4GHz, this is basically how TurboQAM is presented...

    (This is also why I always recommend mixed B/G/N with Turbo disabled - N-Only will go into Protection if an 11g/11b is seen during the mandatory OBSS scans, and Turbo/VHT can have interop issues with older 11n/11g clients, and I've seen 11b clients crash outright with AP's broadcasting VHT support in 2.4GHz)
    Ah-Pin-Kor likes this.

Share This Page