06-07-2015 09:49 AM
47 12
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  1. parradigm's Avatar
    Too add. Wife's phone is more stable but not perfect. Hers is white, mine black

    I also used the wifi analyzer. Signal strength up, signal strength disappears. Repeat every couple of seconds.

    Posted via Android Central App
    04-07-2014 12:08 AM
  2. metle_geek's Avatar
    I was reading a forum for routers and something came to light seems samsung doesn't play nice with certain encryption and will cut signal the solution was to make a less powerful encryption under a guest and simply not use wpa/wpa2 encryption

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    04-12-2014 01:52 PM
  3. metle_geek's Avatar
    Too add. Wife's phone is more stable but not perfect. Hers is white, mine black

    I also used the wifi analyzer. Signal strength up, signal strength disappears. Repeat every couple of seconds.

    Posted via Android Central App
    Are you running wpa/wpa2 encryption?? If so samsung kernels don't play nice with that level of encryption

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    04-12-2014 01:54 PM
  4. 1BadBoyToo's Avatar
    Are you running wpa/wpa2 encryption?? If so samsung kernels don't play nice with that level of encryption

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    So you're saying that I should remove WPA/WPA2 from my 5G radio to work with my Galaxy S4? If so, my only other option is WEP - and it's not much of an option. What the hell is Samsung doing so that it doesn't work with these routers/drivers/methods? Is it a software issue or hardware issue? If software, how have some folks gotten better results by having their PBA boards replaced?

    Seems like some folks have had success replacing the PBA board on some phones which resolved the issue, but I don't want to chance sending my phone in and getting one back that was not treated nicely. I like my phone, but my connection is terrible. Drops randomly!

    Can I purchase a PBA board and do the swap myself (or take to a phone repair kiosk to perform repair)?
    04-20-2014 02:42 PM
  5. levoresume's Avatar
    my ac (or 5ghz) issues started couple of days ago, right after i unlock my galaxy s5. before that it's relationship with my netgear r6200 was perfectly fine. now i can't see any 5ghz band if it's not coming from cisco router (very strange). i hope any kind of firmware update helps.
    04-30-2014 07:40 PM
  6. metle_geek's Avatar
    So you're saying that I should remove WPA/WPA2 from my 5G radio to work with my Galaxy S4? If so, my only other option is WEP - and it's not much of an option. What the hell is Samsung doing so that it doesn't work with these routers/drivers/methods? Is it a software issue or hardware issue? If software, how have some folks gotten better results by having their PBA boards replaced?

    Seems like some folks have had success replacing the PBA board on some phones which resolved the issue, but I don't want to chance sending my phone in and getting one back that was not treated nicely. I like my phone, but my connection is terrible. Drops randomly!

    Can I purchase a PBA board and do the swap myself (or take to a phone repair kiosk to perform repair)?
    It's most likely the Kernel build as far as I know AOSP roms don't have that issue as it is the standard wifi encryption so samsung must be tweaking it with th knox security to try and add more code but it will most likely kill the connection

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    04-30-2014 11:10 PM
  7. metle_geek's Avatar
    http://www.zdnet.com/the-five-things...ac-7000017112/

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    04-30-2014 11:22 PM
  8. metle_geek's Avatar
    EURICA!!!!!! I FOUND A WORKS AROUND!!!! VERY VERY SIMPLE AND EXPOSES SOMETHING A FLASH IN THE DESIGN SEEMS IF YOU PUT IT IN AIR PLANE MODE YOU VIRTUALLY KILL THE TOWER CONNECTED AC TV ATT WIFI GUESS WHAT 4 1/2 HOURS NO CONNECTION ISSUES SO WHAT DOES THIS TELL YOU???? CARRIERS HATE WIFI SO IM ASSUMING THEY SCREW IT UP AND WANT YOU TO USE PRIMARILY make you use the data plan

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    05-02-2014 04:29 PM
  9. levoresume's Avatar
    thanks metle_geek but unfortunately it didn't solve my issue

    i just can't see any 5ghz network besides cisco modems... it's really strange
    05-03-2014 02:10 PM
  10. metle_geek's Avatar
    Because if they're not on WEP or ope nits most likely not going to show mine disappeared to Samsung apparently only uses Cisco products?? After all they are basically the king of routers and cable boxes google only bought the mobile side of moto Cisco bought the cable box and router side...

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    05-03-2014 03:11 PM
  11. anon(19981)'s Avatar
    Routers Used:
    Netgear AC1900 R7000 Nighthawk
    Stock Firmware Versions: V1.0.2.194_1.0.15 // V1.0.2.164_1.0.15
    Kong Firmware Versions: 23250

    Asus AC1900 RT-AC68R
    Firmware Version: 3.0.0.4.374_205

    My Devices capable of 5GHz:
    Two Separate Galaxy S4 phones (802.11ac)
    Nexus 7 Tablet (non 802.11ac)
    Nexus 5 Phone (802.11ac)
    Panasonic TC-PST50 Television (non 802.11ac)

    Symptoms on Netgear AC1900 R7000 with firmware version V1.0.2.164_1.0.15:
    Galaxy S4 experienced excellent coverage and speeds on 5GHz network. Unreliable connections with random drops occuring every 5-30 minutes, however. Only GS4 would display these issues, Nexus Devices and TV maintained connection to network/internet as well as the 2.4GHz devices and ethernet plugged devices.

    Symptoms on Netgear AC1900 R7000 with firmware version V1.0.2.194_1.0.15:
    Galaxy S4 had excellent speed with VERY limited range. Within 5 feet of router, phone obtained maximum connection speeds. After that, every few feet speeds would drop significantly. Once out of the room (less than 15 feet away), the GS4 would lose connection entirely. Nexus devices and TV did not experience this issue.

    Symptoms on Netgear AC1900 R7000 with firmware by Kong, version 23250:
    Exact same symptoms and results as with the stock Netgear firmware version V1.0.2.194_1.0.15 -- VERY limited range.

    Symptoms on Asus AC1900 RT-AC68R with firmware Version: 3.0.0.4.374_205:
    Exact same symptoms and results as with the stock Netgear firmware version V1.0.2.194_1.0.15 -- VERY limited range.

    Attempted Fixes:
    Factory Resets on Routers and GS4
    Tried different channels on the router using WiFi analyzer to help choose
    Specifying Wireless Modes (N+AC, N, Auto, etc)
    Disabled WiFi Power Save Mode on GS4

    Notes:
    No noticeable issues with the 2.4GHz or wired devices with any router or firmware versions -- though I've been primarily focusing on the 5GHz.
    Phone: Software Version: MK2, Hardware Version: L720.08, Non Rooted

    Does anyone else have any experience with the Samsung Galaxy S4 and connection to a 5GHz network using 802.11ac?
    I just purchased the Nighthawk router and am having the same issue with the 5ghz network. I have a strong signal everywhere in my house but I can't access the network. I have 3 Moto X's in the house and they are having no issues on that band. Did you ever find a fix?

    Posted via Android Central App
    05-04-2014 02:26 PM
  12. levoresume's Avatar
    just an update, after i downloaded wifi analyzer, somehow i started seeing 5ghz networks and was able to access my router.
    right now everything seems ok.
    05-10-2014 10:57 AM
  13. metle_geek's Avatar
    I just purchased the Nighthawk router and am having the same issue with the 5ghz network. I have a strong signal everywhere in my house but I can't access the network. I have 3 Moto X's in the house and they are having no issues on that band. Did you ever find a fix?

    Posted via Android Central App
    Are you using wpa2 encryption? ? Turn off your encryption to your 5gh and see if it pops up Samsung's encryption keys are not compatible with most routers

    Sent from my SAMSUNG-SGH-I337 using AC Forums mobile app
    05-11-2014 04:31 PM
  14. Jay2212's Avatar
    Routers Used:
    Netgear AC1900 R7000 Nighthawk
    Stock Firmware Versions: V1.0.2.194_1.0.15 // V1.0.2.164_1.0.15
    Kong Firmware Versions: 23250

    Asus AC1900 RT-AC68R
    Firmware Version: 3.0.0.4.374_205

    My Devices capable of 5GHz:
    Two Separate Galaxy S4 phones (802.11ac)
    Nexus 7 Tablet (non 802.11ac)
    Nexus 5 Phone (802.11ac)
    Panasonic TC-PST50 Television (non 802.11ac)

    Symptoms on Netgear AC1900 R7000 with firmware version V1.0.2.164_1.0.15:
    Galaxy S4 experienced excellent coverage and speeds on 5GHz network. Unreliable connections with random drops occuring every 5-30 minutes, however. Only GS4 would display these issues, Nexus Devices and TV maintained connection to network/internet as well as the 2.4GHz devices and ethernet plugged devices.

    Symptoms on Netgear AC1900 R7000 with firmware version V1.0.2.194_1.0.15:
    Galaxy S4 had excellent speed with VERY limited range. Within 5 feet of router, phone obtained maximum connection speeds. After that, every few feet speeds would drop significantly. Once out of the room (less than 15 feet away), the GS4 would lose connection entirely. Nexus devices and TV did not experience this issue.

    Symptoms on Netgear AC1900 R7000 with firmware by Kong, version 23250:
    Exact same symptoms and results as with the stock Netgear firmware version V1.0.2.194_1.0.15 -- VERY limited range.

    Symptoms on Asus AC1900 RT-AC68R with firmware Version: 3.0.0.4.374_205:
    Exact same symptoms and results as with the stock Netgear firmware version V1.0.2.194_1.0.15 -- VERY limited range.

    Attempted Fixes:
    Factory Resets on Routers and GS4
    Tried different channels on the router using WiFi analyzer to help choose
    Specifying Wireless Modes (N+AC, N, Auto, etc)
    Disabled WiFi Power Save Mode on GS4

    Notes:
    No noticeable issues with the 2.4GHz or wired devices with any router or firmware versions -- though I've been primarily focusing on the 5GHz.
    Phone: Software Version: MK2, Hardware Version: L720.08, Non Rooted

    Does anyone else have any experience with the Samsung Galaxy S4 and connection to a 5GHz network using 802.11ac?
    10-11-2014 05:59 PM
  15. Jay2212's Avatar
    I have just received a new galaxy s4. My first had no connection issues and I could access the Internet anywhere in my home. I had issues with my sm card and had to return it for a new s4. My new one will only work when I'm about 10 feet or closer to my wifi router. I have no Internet accessibility anywhere else in my home.
    10-11-2014 06:02 PM
  16. Peter K2's Avatar
    Hi,

    I got a replacement from Samsung and I have the same problem, Galaxy S4 sees the 5ghz N network but it cannot connect to the router.
    It shows it as "saved" when I try to connect.

    Wifi analyzer shows me exactly the same thing.... The signal is there and then id disappears....


    How did you fix that?
    11-07-2014 01:24 PM
  17. Elizabeth Jesse's Avatar
    My S4 worked for a couple of weeks on 5ghz, but now it will only connect to 2.4???
    12-13-2014 09:15 PM
  18. Joel Lafleur's Avatar
    Hi,

    I have a possible solution. I was having the same problem where I could not connect to the 5ghz network from my samsung galaxy s4 provided by my netgear nighthawk r7000 ddwrt kong build.

    All that to say try this.

    It would work with my security disabled, however as soon as I turned on any security, wep or wpa, it would fail. Turns out with the wirless N standard introduced new security requirements to operate. You need to have at minimum WPA2 with AES to use N only or AC only. It would work in mixed mode because it would connect to wireless A which did not need those minimum standards.

    Special thanks to Kong. If you see this, You Rock! and keep up the good work.
    01-02-2015 12:51 AM
  19. CJohnStanchina's Avatar
    I have been experiencing 5.0 Ghz connectivity issues for months. Got my Samsung Galaxy S4 nearly 1 year ago. Got a NETGEAR Nighthawk R7000 router a couple of months later. For about 2 months, the 5.0 Ghz connection on the phone worked just fine. Then I started getting intermittent messages from the phone saying that the 5.0 Ghz connection was unstable. I switched to the 2.4 Ghz network, and everything worked flawlessly. Then in October 2014, a ton of issues erupted on the router. Best Buy was kind enough to exchange the router, but right out of the box, the new router demonstrated many of the same issues (issuing duplicate IP addresses to client devices, intermittent reboots, etc.). Long story short, working with NETGEAR tech support, all those issues have been resolved. I signed a non-disclosure agreement, and am now on my third or fourth beta version of their firmware (V1.0.4.20_1.1.54). The Galaxy S4 5.0 Ghz connection is the only outstanding difficulty I am having.

    So, earlier today, I went to my local Best Buy to see if my phone would connect to their 5.0 Ghz WiFi network. Lo & behold, my phone demonstrated the same issues it did on my home network, leading me to conclude that the problem rests with the phone. Disabling my 5.0 Ghz network security does not solve the problem. Even though the phone is in the same room with the router, the phone shows the 5.0 Ghz network intermittently as "Not in range." I am now working with Samsung via their live chat tech support to see where that gets me.
    03-24-2015 07:22 PM
  20. CJohnStanchina's Avatar
    Just a quick update...after thoroughly reviewing this entire thread, I decided to try connecting to my 5.0 Ghz wireless network by actually touching my GS4 to my Nighthawk R7000 router. Nothing like the "freedom" of wireless, right? Lo & behold, with my phone actually touching one of my router's antennae, it connected to the 5.0 Ghz network for the first time in months! Just as soon as I moved the phone just a couple of feet from the router, the phone showed the following message under the 5.0 Ghz connection: "AP currently not in use. Internet connection slow." It then dropped the 5.0 Ghz connection and automatically reconnected to my 2.4 Ghz WiFi network. This clearly seems to be a hardware issue.
    03-24-2015 10:31 PM
  21. Rukbat's Avatar
    I am now working with Samsung via their live chat tech support to see where that gets me.
    No new posts, so I assume that Samsung is being its usual "interested in being helpful" self. Have they fixed (or are they even aware of) their TKIP problem?
    04-05-2015 01:45 AM
  22. jv59's Avatar
    I had this issue with both my S4 and my Note 4 and Tab S Tablet. I have an ASUS router and found a solution to the 5GHz wireless dropout.

    There are 2 settings that if available on your router you should change.

    Network Key Rotation Interval = 0
    Control Channel = Set this to an non-used channel. Do not use auto
    .

    I have been on 5GHz Wifi for several weeks now without any issues.
    06-07-2015 09:49 AM
47 12

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