My wifi is very spotty at best. It always seems to say it connects just fine but it won't let me actually use it. I just went and stood right above my router and had full wifi strength and couldn't browse the internet. Are there any solutions to wifi issues or do I probably just have a bad wifi chip?
There could be a ton of different reasons why you can't connect. There might be a compatibility issue (some devices just don't get along), there might be an issue with security (you aren't using WPA2/AES on your router), there might be a channel issue that can be fixed by trying another channel on the router, the list goes on and on.
What kind of troubleshooting have you done so far? What router do you have?
Running a netgear WNR3500L with WPA2 encryption. All I've done so far is a simple restart of the router.
EDIT: downloaded and used wifi analyzer to see which channels were open and they looked to all be about the same. I switched it to 6 for tests without any improvement. My router auto detects the best channel to be on. Any other advice?
My P6800 has a wifi problem . sometime can not find wifi channel 12,13,(14). in Korea we use 13 channels.
your Access Point set channel 13 and open wifi analyzer(app) and turn on and off WIFI of P6800,
in my case sometimes 6800 did not search channel 12,13(,14).
how to solve this problem?
more information found... see additional notes later in this thread.
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Hi folks,
Just updated my P6210 to Jelly Bean (KIES_HOME_P6210XXMD3_P6210OXAMD3) and now it won't see any 5ghz wifi. Connects just fine to 2.4ghz. ICS had no problems seeing that there were 5ghz networks and connecting to them.
I've done a lot of searching and it looks like this issue has come up on other devices as well. People have recommended everything from doing a factory reset and suggesting it will start working again. I've also seen folks say this happens if you don't clear cache and factory reset before updating the firmware. Nothing has worked for me.
I've gone back and reloaded ICS and 5ghz immediately works again just fine, so the issue is obviously something to do with the Jelly Bean update or somewhere in how the update is loaded. I've just cleared cache/factory reset/updated to jelly bean again, and the 5ghz networks are gone again.
Apologies if a clear explanation is out there already; I haven't been able to find it.
Is anybody able to help me understand exactly what is going on and if it is possible to get the 5ghz wifi working under Jelly Bean on the P6210 without rooting the device?
Thanks very much for any help,
rjb
rjbeep said:
Hi folks,
Just updated my P6210 to Jelly Bean (KIES_HOME_P6210XXMD3_P6210OXAMD3) and now it won't see any 5ghz wifi. Connects just fine to 2.4ghz. ICS had no problems seeing that there were 5ghz networks and connecting to them.
I've done a lot of searching and it looks like this issue has come up on other devices as well. People have recommended everything from doing a factory reset and suggesting it will start working again. I've also seen folks say this happens if you don't clear cache and factory reset before updating the firmware. Nothing has worked for me.
I've gone back and reloaded ICS and 5ghz immediately works again just fine, so the issue is obviously something to do with the Jelly Bean update or somewhere in how the update is loaded. I've just cleared cache/factory reset/updated to jelly bean again, and the 5ghz networks are gone again.
Apologies if a clear explanation is out there already; I haven't been able to find it.
Is anybody able to help me understand exactly what is going on and if it is possible to get the 5ghz wifi working under Jelly Bean on the P6210 without rooting the device?
Thanks very much for any help,
rjb
Click to expand...
Click to collapse
What country are you in? The current update is a UK ROM, if you are in the US, it may not see all the wifi channels properly.
DigitalMD said:
What country are you in? The current update is a UK ROM, if you are in the US, it may not see all the wifi channels properly.
Click to expand...
Click to collapse
I am in the US and the device has been configured for US for language, etc... Wouldn't they all need to have visibility to all frequencies for when folks travel with their devices or is it generally accepted that WiFi may not work as expected when you travel abroad? I don't travel much so I have no experience with that.
Thanks very much for the response. I really have no idea if that might impact WiFi access.
When I initially updated from Honey Comb to ICS, it was a European firmware that was available first. I had no problems reaching 5ghz wifi with that firmware. I did eventually update again when the US firmware came out, however it was just because it was available and not to address any deficiencies.
So far... here's what I've used:
Honey Comb - Factory Installed - 5ghz & 2.4ghz worked
ICS - United Kingdom / Ireland - P6210XXLPN/P6210OXALPN - 5ghz & 2.4ghz worked
ICS - Cellular south - P6210UELPC/P6210XARLPC - 5ghz & 2.4ghz worked
Jelly Bean - United Kingdom / Ireland - P6210XXMD3/P6210OXAMD3 - 2.4ghz works but no 5ghz
ICS - Cellular south - P6210UELPC/P6210XARLPC - 5ghz & 2.4ghz worked again (downgraded)
Jelly Bean - United Kingdom / Ireland - P6210XXMD3/P6210OXAMD3 - 2.4ghz works but no 5ghz (even after clear cache/factory reset, etc.)
again... appreciate the thoughts.
rjb
more info: "WiFi 5ghz Auto (DFS) channel setting not compatible after upgrade to JB?
Update:
I poked around more and found
"Issue 37482:Galaxy Tablet ICS 4.0.4 Update Disables 5GHz Wifi"
(https://code.google.com/p/android/issues/detail?id=37482)
regarding the same issue but with ICS 4.0.4 on a what is only identified as a "Samsung Galaxy tablet"
There was a response noting a similar experience and suggesting that the OP change their 5ghz channel setting on their router from auto to 36 as this resolved the issue for the responding poster.
Well... it also worked for me.
So the issue now is redefined to:
"WiFi 5ghz Auto (DFS) channel setting not compatible after upgrade to Jelly Bean???"
The issue poster had this happen when they updated to 4.0.4 (albeit we have no idea what device they were using) while 4.0.4 worked fine for me. I run into the same issue when I update to 4.1.2.
Anybody have any idea what is going on here? Does anybody have one of these working with 5gh Auto (DFS)? Any guesses what would change between the 4.0.4 firmware and the 4.1.2 firmware for this device that would require a change to the wifi settings on the router?
Samsung Model GT-P6210MA w/ Jelly Bean 4.1.2
Cisco (Linksys) WRT610N w/ firmware 2.00.01
Router Config #1
5ghz Wireless Settings that don't work (P6210 doesn't even see the 5ghz network when scanning)
Network Mode: Mixed
Channel Width: Auto(20MHz or 40MHz)
Wide Channel: Auto (DFS)
Standard Channel: Auto (DFS)
SSID Broadcast: Enabled
Router Config #2
5ghz Wireless Settings that do work (P6210 sees the 5ghz network and connects just fine)
Network Mode: Mixed
Channel Width: 40MHz only (can't be auto if you want to select the wide channel)
Wide Channel: 38 (maybe others would work, too... haven't tested.)
Standard Channel: 36-5.180GHz (can't be left at auto once other parameters are changed)
SSID Broadcast: Enabled
I'd be interested in any explanation why this is happening. Thanks very much for any help.
rjb
DigitalMD said:
What country are you in? The current update is a UK ROM, if you are in the US, it may not see all the wifi channels properly.
Click to expand...
Click to collapse
It's not a router , or even software issue, its probably a parameter in the Android system/build.prop file that is hardcoded to GB or UK, since this is a UK release.. This would tell the drivers to use UK wifi channels instead of your chosen local. and NO the channels are not the same in the US as in GB/UK, some are the same and some are not the UK has several channels that are not used by US routers , not permitted by the FCC and vice versa..., That's why forcing your router to channel 36 or 1 might work while auto might not work or randomly might work depending on what channel your router finds is clear..
Remember these first single country releases by Samsung are done as really a test or beta. It helps find problems which will be fixed in the broader releases.
DigitalMD said:
It's not a router , or even software issue, its probably a parameter in the Android system/build.prop file that is hardcoded to GB or UK, since this is a UK release.. This would tell the drivers to use UK wifi channels instead of your chosen local. and NO the channels are not the same in the US as in GB, some are the same and some are not the UK has several channels that are not used by US routers , not permitted by the FCC and vice versa..., That's why forcing your router to channel 36 or 1 might work while auto might not work or randomly might work depending on what channel your router finds is clear..
Remember these first single country releases by Samsung are done as really a test or beta. It helps find problems which will be fixed in the broader releases.
Click to expand...
Click to collapse
gotcha...
Thanks for helping me understand what's going on here. Appreciate the help.
rjbeep said:
gotcha...
Thanks for helping me understand what's going on here. Appreciate the help.
Click to expand...
Click to collapse
No problem, If i were near a 5ghz router right now, I'd check it out and find the problem, but Im not.
I haven't experienced a problem yet running JB on the 6210 connected to the 5 GHz AP on my router.
Linksys E3000 running Tomato USB FW (Tomato Firmware v1.28.9054 MIPSR2-beta E3000 USB Ex)
2.4 GHz AP:
MAC Address 98:FC:11:7C:69:27
Wireless Mode Access Point
Wireless Network Mode Auto
Radio Enabled
SSID bwifinet
Security WPA2 Personal (PSK) + AES
Channel 11 - 2.462 GHz
Channel Width 20 MHz
Interference Level Acceptable
Rate 72 Mbps
5 GHz AP:
MAC Address 98:FC:11:7C:69:28
Wireless Mode Access Point
Wireless Network Mode N Only
Radio Enabled
SSID bwifinet5G
Security WPA2 Personal (PSK) + AES
Channel 64 - 5.320 GHz
Channel Width 40 MHz
Interference Level Acceptable
Rate 108 Mbps
You could try installing and playing around with the Wifi Analyzer app on your tablet to see what channels are best, available, etc.
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k_t_b said:
I haven't experienced a problem yet running JB on the 6210 connected to the 5 GHz AP on my router.
You could try installing and playing around with the Wifi Analyzer app on your tablet to see what channels are best, available, etc.
Click to expand...
Click to collapse
Like I said, if its a hard coded parameter in one of the build files, like build.prop... it will tell the drivers to use a UK configuration in which case they will not even see some US channels. It won't matter what you set your locale in settings to... For example US uses 802.11G channels 1-11 only whereas other parts of the world use additional channels up to 14. Same applies to 5ghz, so it could randomly work or not work depending on what channel your Wifi router happened to working on. And if you Wifi AP is doing auto channels, it could work today and not tomorrow.
See here for additional info
http://en.wikipedia.org/wiki/List_of_WLAN_channels 2.4ghz
http://www.digikey.com/us/en/techzo...erence-between-24-ghz-5-ghz-wireless-lan.html
5 ghz
I've two WiFi set in my house.
WiFi 1 in channel 13 and WiFi 1 in channel 6. Each router is separated, both have same SSID, encryption, security password, etc..
On my nexus 5 I've no problem, phone switches to the best signal in range router automatically. One plus one just connecting to channel 6 router but not working with channel 13 one.. I've tried changing WiFi region to USA but no luck.
I enter WiFi passphrase and it tries to connect so fast I can't even read text. Then it's says "saved secured with wpa2". I've already tried to forgot WiFi, reboot device, etc..but no luck.
Any idea?
Changing the Wi-Fi setting to USA would make it NOT connect to channel 13. It would only connect to channels 1-11.
Try changing the country to one that supports channel 13 or just change your router's Wi-Fi channel to a USA supported channel.
I have setup a 5ghz connection on my DLink router but my Z3 will not discover it, not even manually. Has anybody experienced this issue before? I am stock, unrooted.
Try changing the 5GHz wifi channels on your router and see