1. npaladin-2000's Avatar
    Anyone else experienced this? My 802.11ac performance is fantastic, but when connected to 2.4 GHz performance strongly resembles the corpse of an anemic dog with four broken legs.
    04-29-2015 09:21 PM
  2. UJ95x's Avatar
    2.4GHz can be 802.11ac. I'm guessing you meant 5GHz WiFi.
    Anyway...the 2.4GHz spectrum where you live might be crowded. I've seen other people have significantly slower speeds on 2.4 as well. A lot of other devices operate at that frequency, so I'd suggest using 5GHz on every device possible to "clear up space" on 2.4 for your other devices.
    04-29-2015 09:40 PM
  3. npaladin-2000's Avatar
    Actually, ac is like a. 5 Ghz only. I meant ac. The 2.4 spectrum here isn't all that crowded, other devices running on it get good performance, and it's not just my networks, it's everywhere else too.

    Sent from my SM-G920T using Tapatalk
    04-30-2015 05:32 AM
  4. drone3's Avatar
    I initially had that problem, and I reset modem and rebooted the phone a few times and eventually it worked. I think I also cleared the phones cache although I can't really remember the exact instructions to do that.

    dreaming of electric sheep
    04-30-2015 09:54 AM
  5. Almeuit's Avatar
    It has been fine for me. I keep it on my 2.4 GHz network (running N).
    Attached Thumbnails Poor performance on 2.4 GHz WiFi?-1430428124568.jpg  
    04-30-2015 04:09 PM
  6. Petnoone's Avatar
    How do I make my S6 only connect at 5ghz? I have the option for this on my Nexus 7 running Lollipop 5.1 but don't see it on my phone.

    Posted via the Android Central App
    04-30-2015 06:26 PM
  7. npaladin-2000's Avatar
    A couple of power cycles seems to have fixed it. That's fairly unusual to have such a drastic difference between two frequencies on the same network.
    04-30-2015 06:27 PM
  8. npaladin-2000's Avatar
    How do I make my S6 only connect at 5ghz? I have the option for this on my Nexus 7 running Lollipop 5.1 but don't see it on my phone.

    Posted via the Android Central App
    You need to set up your network to have different SSIDs for the 2.4 GHz and 5 GHz bands.
    04-30-2015 06:30 PM
  9. Petnoone's Avatar
    I've already done that...wait.... I got it... I just removed the password for the 2.4 ghz band. Now it can ONLY connect to the 5ghz. Still, I wish it had the option to force 5ghz like my Nexus 7 does.

    Posted via the Android Central App
    04-30-2015 06:50 PM
  10. drone3's Avatar
    A couple of power cycles seems to have fixed it. That's fairly unusual to have such a drastic difference between two frequencies on the same network.
    Great, now the frustration is over you can enjoy the phone.

    dreaming of electric sheep
    04-30-2015 08:31 PM
  11. npaladin-2000's Avatar
    Great, now the frustration is over you can enjoy the phone.

    dreaming of electric sheep
    Oh, I'm sure there will be other frustrations. But so far the good is outweighing the bad or else I would have returned it already.
    04-30-2015 08:34 PM
  12. Rukbat's Avatar
    I've already done that...wait.... I got it... I just removed the password for the 2.4 ghz band. Now it can ONLY connect to the 5ghz. Still, I wish it had the option to force 5ghz like my Nexus 7 does.
    Sounds like the TKIP problem. Set the router up for 2.4GHz, with AES encryption (not TKIP+AES but pure AES). If it's a Linksys it may still run like a dead snail. I "fixed" my Linksys (after they showed as much interest in the problem as I have in the weather on Mars) by buying a Netgear WNR2000. It's the cheapest one out there, Netgear isn't one of the two top dogs, but it works with Android. I have a 20mbps connection (to my ISP) and I regularly get between 20mbps and 21mbps on my phone on wifi. With the Linksys, with AES, I was lucky to get 1mbps.
    04-30-2015 10:47 PM
  13. Petnoone's Avatar
    I have a Linksys AC 1900.... Speed Is not an issue... I'm getting 85—150mbps on 2.4ghz and 75-125 on 5ghz. I just know that 5ghz is like a 4 lane hi-way compared to 2.4 ghz being a back country road.

    Posted via the Android Central App
    05-01-2015 03:26 AM
  14. Almeuit's Avatar
    I have a Linksys AC 1900.... Speed Is not an issue... I'm getting 85—150mbps on 2.4ghz and 75-125 on 5ghz. I just know that 5ghz is like a 4 lane hi-way compared to 2.4 ghz being a back country road.

    Posted via the Android Central App
    I wouldn't say that drastic .. since most don't have the back haul (ISP) speed to utilize it to its potential. 5GHz can just be faster for some since the 2.4 GHz networks around them could be crowding the area up.
    05-01-2015 11:18 AM
  15. Petnoone's Avatar
    I have Cox Cable's 3rd tier which THEY claim is 50 down and 5 up... So yes, my router is way faster than my ISP.

    Posted via the Android Central App
    05-01-2015 03:44 PM
  16. tonyr6's Avatar
    5ghz is the way to go. 2.4ghz is worthless in my neighborhood with over 70 other AP networks.
    05-01-2015 04:08 PM
  17. npaladin-2000's Avatar
    5ghz is the way to go. 2.4ghz is worthless in my neighborhood with over 70 other AP networks.
    That's unfortunate, because it generally uses quite a bit less power than a 5 GHz network. And for some reason some people are seeing drastic power consumption differences between the two on the GS6.
    05-01-2015 04:28 PM
  18. Almeuit's Avatar
    5ghz is the way to go. 2.4ghz is worthless in my neighborhood with over 70 other AP networks.
    Yeah -- your area is saturated for sure. When I do a wifi scan at my house I see 3-4 other networks that aren't mine so .. 2.4 GHz is just fine .
    05-01-2015 04:39 PM
  19. Petnoone's Avatar
    I haven't seen any difference in battery drain between the two bands

    Posted via the Android Central App
    05-02-2015 12:35 PM
  20. Crashdamage's Avatar
    From what I know the difference between 2.4GHz and 5GHz are basically interference or the effective noise floor and signal range and penetration.

    2.4 GHz is often crowded with interference from other networks plus interference from microwaves and a myriad of other sources. The high noise floor reduces data speeds and may require higher power levels to push the signal above the noise.

    5GHz is usually less crowded and operate above microwave ovens and much other stuff that fouls the 2.4GHz band. Lower noise levels means faster data and less power to overcome the noise floor.

    But, 2.4GHz carries farther and penetrates walls better. It may be available in places 5GHz is not, which kinda settles the which is better debate.

    I always use 5GHz when possible. Better speed and lower power consumption, though in practice the power savings are not really that big. Speed is far more significant.

    Android since v1.0. Linux user since 2001.
    05-02-2015 01:43 PM

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