SGH-i747m ping / internal lan issues - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hey all, ive been having issues with my SGH-i747m, I had the app Unified Remote (connects to my local PC over wifi) working fine until i (Kingo ROOT) rooted the phone to install a firewall (AFWall+ , Droidwall , and a few others). After installing I now get no ping response from the PC end, and i have an older galaxy s1 that replys to pings and works with unified remote.
Assuming the root or firewall apps broke something, I then installed TWRP recovery Formatted the data partition and flashed CM 12.1.. but the problem remains, no internal LAN pings or connections.. really strange..
TLDR:
-Started on OEM 4.4.2
-root or firewall apk killed LAN connectivity
-Formatting Data in TWRP and upgrading to CM 12.1 did not fix the connection
Do i need to format more partitions to get wifi LAN? or maybe odin? thanks

I suggest flashing a stock ROM, perform a factory reset in stock recovery, flash TWRP, and then root by flashing supersu from TWRP.

Oh ok, so before trying CyanogenMod i did try restoring the phone through settings>security>reset phone option, not through recovery though, i assume these are different things?
thanks!

ok using this app : https://play.google.com/store/apps/details?id=com.ddm.iptools
running a traceroute to my pc i get an infinite loop of the phones own internal ip, with a 0.2ms
my working phone stops at 1 hop with the correct ip of my pc @ 3ms
i understand what this means, i just have no idea what to modify / reset to fix this

FIXED - http://superuser.com/questions/701956/android-devices-dont-know-route-to-a-host-located-in-the-same-network
i considered my router being the issue, i was about to reset its settings, when i checked my DHCP client reservation settings, somehow there was a bunch of new very strange entries, so i deleted all the unknown entries and the phones are all pinging now
i assume the router got a bit messed up when i was fiddling with adding a DDWRT router repeater
thanks for bearing with me

Related

WiFi issue with 3.4.2 Froyo

Hi
i have the "Higgsy_Modded_3.4.2_GB_Froyo_RC2" rom on my defy, everything works perfect....with one exception.....wifi
------------------------------
***ive copied this text form "reinsen" because he had the some problem***
Got some serious wifi issues...
When i switch on wifi and start something traffic-heavy like dl or youtube vid,i dont lose connection to my router but to the internet.cant open a site via browser or anything else. Switchin wifi off and then on again gets me back online only until i start streamin or dling again...with one exception
Most prolly the wifi drivers aren't included in the rom...although there are loads of other roms, you can try those
I know this is stupid but did you reboot your device?
Because thats what happened to me with another rom a reboot is essential.
-Jabar
Did you full wipe as well?
yes, i wiped all and complet
reboot done, without any effects
hmmm, i think i go to try the S.Froyo...
i´ve found the problem.
the defy CAN´T handle router with WMM + 802.11n standart.
Log in to your router an turn off WMM or switch the wifi from 802.11n to 802.11g

T210R WiFi Issues

I'm at school where WiFi on my T210R used to work.
I am running Android 4.1.2 on Crash Rom V1.6 with Kernel Version 3.4.5.
Root apps installed are Titanium Backup, Greenify, AdAway, AFwall+ (disabled), Quick CPU Overclock
This is the troubleshooting that I have already done:
-Forget Network
-Turn Off Wifi
-Turn On Wifi
-Reconnect
-Repeat the above, but restart before turning wifi back on
-Wipe Cache in Recovery
-Factory Reset
-WiFi Roaming Fix
The network is built on a set of WiFi repeaters that use WPA2 PSK authentication.
I do not have access to the network (router) settings, so modifying router settings will not work
When entering a correct password, the device will try to connect but will not displace "Obtaining IP Address".
Instead, the device will show "saved, secured" and "authentication error' after a while.
The device will connect to most other networks that I have tried (Tethering on my Lumia 920, D-Link DIR 655 at home)
Thoughts? This is getting slowly becoming frustrating!
I had similar issues when flashing ROMs. It turned out that my router had some security mechanisms in place and conflict was caused when the same device came in with different ROMs on it. My guess is perhaps MAC related. At any rate, a router reboot fixed it. I know that doesn't help you much sorry.
Sent from my SM-T210 using Tapatalk
Flash t210r kernel from this post http://forum.xda-developers.com/showthread.php?p=47022543 credits go to tempdroid
sent from SM-T210(R)ocketTab 3.0 $up€[email protected]$T

proxy problem

Hi
I have a galaxy tab s T705 non-rooted device.
some times I use a proxy app like your-freedom or psiphon3 to connect to internet.
I'm using a home WiFi.
after disconnecting the apps I am unable to connect to internet anymore.
while I can connect with other devices and PCs.
I checked my proxy setting under modify network config.
there is no proxy there.
but my firefox and chrome browser showing not able to connect to proxy warning.
any solution?
PS: I had this problem before and factory reset fixing this, but I cant afford factory reset each time I use a proxy app.
I had to problem when connecting to proxys then when I dont use then my internet wont work. The thing that always worked for me is that since the proxy messes with the hosts file in your system, it changes the hosts file that makes you cant connect to the internet. So when you did a factory reset, it resetted that hosts file making your internet work again. If your rooted the fix is to go into etc, and delte the hosts file so when you connect to the internet again, it will make a new hosts file that it was before you used the proxy. Since your not rooted, please try a factory reset again and do not use proxys. Use vpn apps such as cyberghost vpn or hola vpn. Hope this helps!

Unable to connect to WiFi AP with hidden SSIDs

Hi,
I'm having problems connecting to WiFi APs that have hidden APs. I've tried manually adding the network but it keeps showing them as out of range. Once I unhide the SSIDs, I'm able to connect successfully, but after hiding again, it shows them as out of range. I've tried 2 APs (TP-LINK and ASUS) and both have the same problem.
Device is a stock HTC One X on Android 4.2.2 (latest I think) and is freshly factory reset.
Any ideas?
Thanks.

(Need "more" help) WIfi mac address still stuck to 02:00:00:00:00))

Hi,
I have read almost everything that this forum gave me and some solution from the rest of the internet and STILL my wifi mac address is still stcuk at 02:00:00:00:00:00
Wifi won't turn on and it won't display available wifi
I can't remember exactly what caused it but i'll try to share my recollection
I vaguely remember that i was able to connect to the wifi before trying to fix it. Can't recall what really happened
I fixed the random rebooting nexus 5x by using unblod fix
I think i tried rooting it and succeeded with a twrp recovery
I vaguely remember flashing a zip custom rom with wrong version and brought it into a soft brick. Cant find the file anymore.
I reflashed it with flash all batch file from stock firmware
the phone is bootlooping
Fixed it again using unblod exe using the stock firmware's boot.img
Wifi wont turn on
mac address is 02:00:00:00:00:00
Tried on android 6.0, 7.0, 7.1.2, 8.0 and 8.1.0
Other solutions tried:
Nil Mac app. Seems to work app wise but mac is still stuck at 02:00:00:00:00:00 on settings. Wifi wont turn on
Manually edited, placed *.bin file in /persist, and /etc/firmware/wlan/qca_cld/
WIfi mac changer apps from appstore (they dont work)
Some root apps that mess with the phone's setting (cant find anything that seems to deal with wifi mac address)
p.s.
I also tried bricking the phone using TWRP wipe and checking all the wipe locations to eliminate remnants from previous mods
I cant seem to do anything. Still stuck at 02:00:00:00:00:00
Any more suggestions on where to look?
Or is android not getting the real mac address and revert to 02:00:00:00:00:00 and wont let wifi turn on during flash all script?
Thanks in advance.
Recent Android hides the MAC address to prevent tracking. 02:xx:xx:xx:xx:xx means a site-local MAC address.
Try using "ip link" and looking for the wlan0 entry. eg.
Code:
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 3000
link/ether 2c:59:8a:xx:xx:xx brd ff:ff:ff:ff:ff:ff
nowster said:
Recent Android hides the MAC address to prevent tracking. 02:xx:xx:xx:xx:xx means a site-local MAC address.
Try using "ip link" and looking for the wlan0 entry. eg.
Code:
22: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 3000
link/ether 2c:59:8a:xx:xx:xx brd ff:ff:ff:ff:ff:ff
Click to expand...
Click to collapse
HI,
thanks for the reply. I already did that and i got a mac address that is not 02:00:00...
then i tried to change it using if config just to see if it changes using the command.
I got an error saying wlan0 not found (not exact words)
Is there a different MAC address in Settings -> System -> About phone -> Status ?
nowster said:
Is there a different MAC address in Settings -> System -> About phone -> Status ?
Click to expand...
Click to collapse
No, it is 02:00:00:00:00:00.
arviverona said:
No, it is 02:00:00:00:00:00.
Click to expand...
Click to collapse
Did this ever get fixed? I'm facing the same issue. However, the steps I did was trying to spoof a MacAddress using Busybox and a terminal emulator.
Just using that would not allow me to connect to wifi, but wifi was turned on. Then I read to change the wlan.bin file in the persists folder.
After I changed that file and did a reboot wifi would not turn on.
I tried:
1. factory reset
2.Changing the wlan.bin back to what it was
3.Sideload android 8.0
4.Flash OEM back to factory
Nothing seems to work. Settings->about->status MacAddress says "unavailable", but
wifi -> preferences -> advance shows MacAddress 02:00:00:00:00:00
Any help would be great,
-realkewl
Try AMC, its the only MAC Address Changer app I could find that worked on my 5x. That was without a screwed up MAC address to begin with, but It might work for you.
I downloaded it from the play store, but now its not there. Here's the apk from my phone:
https://sqerk.com/pythonlimited.amc.apk
Looks like AMC was forked from nMAC :
https://forum.xda-developers.com/android/software-hacking/app-nmac-nil-mac-changer-t3391283
sqerk said:
Try AMC, its the only MAC Address Changer app I could find that worked on my 5x. That was without a screwed up MAC address to begin with, but It might work for you.
I downloaded it from the play store, but now its not there. Here's the apk from my phone:
https://sqerk.com/pythonlimited.amc.apk
Looks like AMC was forked from nMAC :
https://forum.xda-developers.com/android/software-hacking/app-nmac-nil-mac-changer-t3391283
Click to expand...
Click to collapse
Thanks, but I figured it out. I was trying to flash with the same version 8.0...and for whatever reason that did not work, so I tried a costume ROM and it brought back my MAC address, so then I flash again to android 8.1 and my MAC address problems are fixed. Not sure why flashing with the same version did not fix it.
Thanks,
realkewl
realkewl said:
Thanks, but I figured it out. I was trying to flash with the same version 8.0...and for whatever reason that did not work, so I tried a costume ROM and it brought back my MAC address, so then I flash again to android 8.1 and my MAC address problems are fixed. Not sure why flashing with the same version did not fix it.
Thanks,
realkewl
Click to expand...
Click to collapse
What Custom ROM did you use friend? I have the same exact issue with my Nexus 5. Maybe finding your previously installed Custom ROM, I can fix the issue too. I saw a lot of threads says that installing Custom ROMs or downgrading then upgrading OS using OTA updates given from their Android System fixed the issue. MAC address is important and controls everything that has to do with wireless connections in your device. Maybe this can help be fix my issue too. I am almost convinced to buy a brand new smartphone. It's almost my limit here... If this doesn't bother you, please, can you tell me what is the ROM you used?

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