Gingerbread Wifi Issue

januszk · Oct 27, 2011

Hi rajeevvp,

In case you have a spare few minutes. I took my gTablet to my daughter swimming classes and tried to connect to public AP there. It's open network but you need to login with RoadRunner (our ISP) username and password. In the log you can find it as Brighthouse. It connected right away (about 7:05 PM) and for testing purposes I played some YouTube videos. It lasted maybe a minute or so and then it disconnected. I've tried several attempts to switch WiFi on and off but it maybe connected once more for a very short period. I was there for an hour, most of the time it remained disconnected. It tried to connect throught the whole time but did not succeeded. I never had problems connecting to this AP from my phone or ipod. Logs are attached. Maybe it will help to investigate where there problem might be.

Thanks,
Janusz

rajeevvp · Oct 28, 2011

I'll look into this over the weekend.

januszk · Oct 29, 2011

Thanks. Can you give me a few clues of what to look for in those logs (or any other for that matter) so I don't need to bother you every time I change something? I know how to run a thing or to on unix based system but I'm not a network expert so I can't figure that out on my own.

Janusz

rajeevvp · Oct 29, 2011

The commands I use I've already given in previous posts.

The dmesg.txt file will have the kernel messages, but, since no hardware problem is indicated, we need not scrutinize that file very hard.

The logcat.txt file which contains the Android logs is more relevant for troubleshooting this WiFi problem. The command to use to look for WiFi-related errors are given in post #17. If we use that command on your latest logcat file, we get:

$ egrep -i 'connectivity|dhcp|wpa|wifi|wlan' logcatb.txt
...
10-26 19:04:57.342 D/WifiService( 1049): ACTION_BATTERY_CHANGED pluggedType: 0
10-26 19:05:03.132 E/ConnectivityService( 1049): Attempt to connect to WIFI failed.
10-26 19:05:05.662 W/WifiService( 1049): misformatted scan result for: ac:67:06:dc:f1:49 2412 172 [WPA2-PSK-CCMP]
10-26 19:05:07.342 D/WifiService( 1049): ACTION_BATTERY_CHANGED pluggedType: 0
10-26 19:05:17.342 D/WifiService( 1049): ACTION_BATTERY_CHANGED pluggedType: 0
10-26 19:05:26.602 I/ActivityManager( 1049): Starting: Intent { act=android.intent.action.MAIN cmp=com.android.settings/.wifi.WifiSettings } from pid 5494
10-26 19:05:27.352 D/WifiService( 1049): ACTION_BATTERY_CHANGED pluggedType: 0
10-26 19:05:29.572 W/WifiService( 1049): misformatted scan result for: ac:67:06:dc:f1:49 2412 174 [WPA2-PSK-CCMP]
10-26 19:05:29.632 W/WifiService( 1049): misformatted scan result for: ac:67:06:dc:f1:49 2412 174 [WPA2-PSK-CCMP]
10-26 19:05:37.342 D/WifiService( 1049): ACTION_BATTERY_CHANGED pluggedType: 0
10-26 19:05:41.642 W/WifiService( 1049): misformatted scan result for: ac:67:06:dc:f1:49 2412 174 [WPA2-PSK-CCMP]
10-26 19:05:41.642 W/WifiService( 1049): misformatted scan result for: 00:1f:41:35:42:88 2437 160
...

From the "misformatted scan result" error message we can see right away that there is some trouble. And by correlating the time 19:05 and looking up the MAC OUI identifiers, I can see that it happened at the location you mentioned and not at home.

Since you said your other devices were working correctly at the same time, it might be that the WiFi-related programs on the ROM are slightly finicky when dealing with marginal WiFi data. So, copy the attached wpa_supplicant from CM-7.1.0.1 to /system/bin (rename the original one to wpa_supplicant.orig first), set the correct owner/group/permissions, then reboot the tablet. See if there is any improvement.

januszk · Oct 29, 2011

I've tried the file you supplied but it didn't seem to make any difference. Actually there are more problems connecting now but it may have just be a coincident. The originall wpa_supplient and the one from your post are of the size so they may actually be the same version as well. I couldn not try this against the Brighthouse AP but I did that at home. I've run my second radio (PL) without any security but that didn't seem to make any difference. Now the most common error is:
10-29 15:30:17.175 V/WifiMonitor( 1049): Event [Authentication with c0:3f:0e:57:47:0d timed out.]

Tablet is having problems connecting at all. Log filtered out for connection isssues is attached.

Thanks,
Janusz

rajeevvp · Oct 30, 2011

januszk said:
Now the most common error is:
10-29 15:30:17.175 V/WifiMonitor( 1049): Event [Authentication with c0:3f:0e:57:47:0d timed out.]

That has been the case since the second log set. Only the first set was OK.

Get me screenshots of all the LAN- and WLAN-related settings (incl. any Advanced ones) on both your Netgear and the gTablet. Cross out any sensitive info like usernames/passwords then attach everything here. Also attach your wpa_supplicant.conf file. To find out the location of your wpa_supplicant.conf do this:

Code:

gTablet$ [B]busybox ps | fgrep wpa_supplicant[/B]
 1892 1010       0:02 /system/bin/wpa_supplicant -D wext -i wlan0 -c[B]/data/misc/wifi/wpa_supplicant.conf[/B] -iwlan0
26366 root       0:00 fgrep wpa_supplicant

Here's my wpa_supplicant.conf after the pre-shared key (psk="...") has been crossed out:

Code:

gTablet$ [B]su[/B]
gTablet# [B]cat /data/misc/wifi/wpa_supplicant.conf[/B]
ctrl_interface=wlan0
update_config=1

network={
        ssid="Wireless@Home"
        psk="xxxxxxxxxxxxxxxxxx"
        key_mgmt=WPA-PSK
        priority=8
}

Log filtered out for connection isssues is attached.

Don't filter out anything--I can do that here. Just send both logs as before. In fact, a better way of collecting logs is outlined in this post: Keep 2 windows open. In one run "adb logcat ..." as indicated and keep collecting the Android log. In the other window, use another adb session (you can have multiple adb sessions to an Android device) to keep up a running commentary instead of painfully typing into a Terminal Emulator as mentioned there and to collect the dmesg output. Use "adb shell cmd ".

januszk · Oct 30, 2011

Thanks. I'll do logs and settings as soon as I have a chance. As for wpa_supplicant conf mine looks just like your with the exception of priority. See below (this is typed in so I may do some misspelling):

ctrl_interface=wlan0
update_config=1

network={
ssid="PLN"
psk="XXXXXXXXXXXXXXXXX"
key_mgmt=WPA-PSK
priority=3
}

rajeevvp · Oct 30, 2011

So, your gTab will try to use PLN by default. Is the pre-shared key the same as that on the Netgear?

januszk · Oct 30, 2011

Yes, and it even connects occasionally, like this morning. Connection stayed long enough to download emails and read some news.

rajeevvp · Oct 30, 2011

Where did you get the WLAN firmware blobs (fw_bcm4329*.bin) from? You have an unusual version: 4.218.248.6.

For your kernel (pershoot 2.6.32.46-cyanogenmod) they should be: 4.218.248.18.

If you downgraded the blobs using my zip file, they should be: 4.218.223.1 (what VS supplies)

How come your firmware blobs were not updated when you flashed the new kernel? Are you on a Honeycomb ROM?

januszk · Oct 30, 2011

Before checking just a minute ago I thought those were blobs that came with the rom. I'm running ginger Vegan 7.1.0. I've tried downgrading to older version of blobs but since that didn't make any difference I restored the original one. I can try to install new kernel one more time. Is there anything that I should do after installing new kernel with CWM? How do I check for blobs version?

januszk · Oct 30, 2011

Router settings are attached. I think I've covered everything. If there is something missing let me know and I'll update. Sorry for large file but I thought print screens will be the best option to see the settings relatively easy (copy/paste didn't work that well). As for gTab settings there is nothing in particular. Regulatory domain is set to 11 channels, WI-FI sleep policy to never and I'm not using Static IP. I've only one known network PLN.

Janusz

rajeevvp · Oct 30, 2011

januszk said:
I can try to install new kernel one more time.

Since you're on the 1.2 bootloader, make sure you download the `*_newbl*' version of the kernel zip file.

How do I check for blobs version?

Reboot tablet, then:

Code:

gTablet$ [B]dmesg | egrep 'Firmware|Dongle'[/B]
[   43.838006] Firmware version = wl0: Jan 12 2011 13:49:20 version [B]4.218.248.20[/B]
[   43.996396] wlan0: Broadcom Dongle Host Driver mac=e0:2a:82:07:b0:3d
[   44.003957] Dongle Host Driver, version [B]4.218.248.23[/B]

The 'Firmware version = ..." will show the firmware blob version. The "Dongle Host Driver, version ..." is the kernel WLAN device driver module version.

januszk · Oct 30, 2011

Everything seems to be ok. I've installed boot-cm_2632.46_gb_newbl-oc-uv-xtra-vfp_fp-083111.zip. I've reapplied it.

System returns:
Firmware version 4.218.248.6
Dongle Host Driver version 4.218.248.23

rajeevvp · Oct 30, 2011

januszk said:
Firmware version 4.218.248.6

That's wrong for the kernel you installed. It should show 4.218.248.18. What's the output of these find commands?

Code:

gTablet$ [B]su[/B]
gTablet# [B]find / -name 'fw_*.bin'[/B]
gTablet# [B]find / -name 'bcm*.ko'[/B]

---------- Post added 31st October 2011 at 12:08 AM ---------- Previous post was 30th October 2011 at 11:57 PM ----------

januszk said:
Router settings are attached.

This is a .doc file, which is no good for me. Standard image formats only please.

januszk · Oct 30, 2011

Find returns only one location for all files (and the right one):
/system/lib/hw/wlan/fw_bcm4329_apsta.bin
/system/lib/hw/wlan/fw_bcm4329.bin
/system/lib/hw/wlan/bcm/bcm4329.ko

I'll redo printscreens. I can do odt format but if you have open office you should be able to open doc as well (they were created in OO).

Janusz

---------- Post added at 08:02 PM ---------- Previous post was at 07:45 PM ----------

I've manually copied blobs from boot-cm_2632.46_gb_newbl-oc-uv-xtra-vfp_fp-083111.zip package to gTab /system/lib/hw/wlan and they still come with the same version (they were the same sizes as well).

januszk · Oct 30, 2011

Router settings in jpeg format attached.
Can you post blobs that you think should come with this kernel? I can try to put them in and see if there will be any difference.

Thanks
Janusz

rajeevvp · Oct 30, 2011

The locations for those two blobs are correct, but, I think, they're not the right versions. Looks like Pershoot is using 2 different versions of the firmware blobs for 1.1 (4.218.248.18) and 1.2 bootloaders (4.218.248.6). I'll ask what's up with this, tomorrow. In the mean time, download the 1.1 version of the kernel, extract the firmware blobs and copy them into place.

/system/lib/hw/wlan/bcm/bcm4329.ko

This location is incorrect. It should be /system/lib/hw/wlan/bcm4329.ko.

I can do odt format but if you have open office you should be able to open doc as well (they were created in OO).

Don't have/use OO.

januszk · Oct 30, 2011

That was my misspeling. The file is /system/lib/hw/wlan/bcm4329.ko
I've applied your downgraded blobs. Now system shows:
Firmware version 4.218.223.1
Dongle Host Driver version 4.218.248.23

but no change in behavior (the same timeout message).

JPG print screens of my router settins are in the previous post.

Thanks,
Janusz

januszk · Oct 30, 2011

I applied blobs from 1.1 BT. Now it shows as:

Firmware version 4.218.248.18
Dongle Host Driver 4.218.248.23

Logcat shows the same timeout message.

Gingerbread Wifi Issue

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