[solved] nearly impossible to ping my tablet - Xperia Z4 Tablet Q&A, Help & Troubleshooting

Does anyone experience the same problem?
Code:
[email protected]:/$ ping xperiaz4
PING xperiaz4 (192.168.178.44) 56(84) bytes of data.
64 bytes from xperiaz4 (192.168.178.44): icmp_seq=182 ttl=64 time=161 ms
64 bytes from xperiaz4 (192.168.178.44): icmp_seq=273 ttl=64 time=4.50 ms
64 bytes from xperiaz4 (192.168.178.44): icmp_seq=303 ttl=64 time=245 ms
64 bytes from xperiaz4 (192.168.178.44): icmp_seq=334 ttl=64 time=274 ms
64 bytes from xperiaz4 (192.168.178.44): icmp_seq=364 ttl=64 time=307 ms
... ^C
--- xperiaz4 ping statistics ---
979 packets transmitted, 28 received, [B][COLOR="Red"]97% packet loss[/COLOR][/B], time 1000555ms
Since I am on Linux file transfer from the tablet to my notebook via MTP is unreliable (works under Windows).
So over the years I am using the app "Software Data Cable" to transfer files via FTP.
I can not connect anymore to the tablet via FTP: Timeout establishing a connection
Possible culprits:
- the latest ROM 32.2.A.5.11 (had the same problems a version before)
- the latest AndroPlus kernels v42 (v40 the same)
Can anyone confirm this?
Or is there a configuration I should try to fix this?
Rather before downgrading I fire up a Windows-VM but that is s l o w
All my other devices work as they should. Only the Z4 gives me trouble lately. Pinging other devices from the tablet works.

I downgraded the device several several versions down to ancient Lollipop - still no change.
Then having a thorough look at my router configuration I noticed that I could not change any settings there for my tablet?!
The other nodes were fine.
So I disconnect the tablet from the network, rebooted the router, deleted all the traces of the tablet there and then connected it again to the network -> PING
I still do not know what happened and why only the tablet was affected...

Related

hping for android?

where could i found hping for android?
or where could i found busybox that contain hping?
What is the best forum for android busybox Q&A ?
Where can i tell my Android BusyBOX Question about HPING in busybox ?
Does anyone can help me ?!
busybox (busybox.net) does not include hping. You may find other multi-binaries including the hping, but it's not busybox and not very likely ported to Android. If it's hping you want, look for it (or port yourself) for Android - do not look for a "busybox". As long you don't need the tcl support in hping, I guess it's quite easy to compile it for Android.
Thanks For Reply ,
How can i compile hping for android ?
mbzadegan said:
Thanks For Reply ,
How can i compile hping for android ?
Click to expand...
Click to collapse
Using the SDK plus NDK would be the easiest way, I guess, but since you are asking, I guess you are not familiar with porting code to the Android, and in this case, I guess it may be a little to large task.
Or -- if Moses won’t go to the Mountain, bring the Mountain to Moses.
This is on my ASUS Transformer. I simply apt-get hping3.
Code:
[email protected]:~# apt-get install hping3
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
hping3
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 108 kB of archives.
After this operation, 324 kB of additional disk space will be used.
Get:1 http://ftp.se.debian.org/debian/ squeeze/main hping3 armel 3.a2.ds2-6 [108 kB]
Fetched 108 kB in 0s (339 kB/s)
Selecting previously deselected package hping3.
(Reading database ... 38945 files and directories currently installed.)
Unpacking hping3 (from .../hping3_3.a2.ds2-6_armel.deb) ...
Processing triggers for man-db ...
Setting up hping3 (3.a2.ds2-6) ...
[email protected]:~# hping3 --icmp localhost
HPING localhost (lo 127.0.0.1): icmp mode set, 28 headers + 0 data bytes
len=28 ip=127.0.0.1 ttl=64 id=61322 icmp_seq=0 rtt=0.3 ms
len=28 ip=127.0.0.1 ttl=64 id=61323 icmp_seq=1 rtt=0.7 ms
len=28 ip=127.0.0.1 ttl=64 id=61324 icmp_seq=2 rtt=0.8 ms
^C
--- localhost hping statistic ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.3/0.6/0.8 ms
This is possible because I'm running a complete GNU/Linux (Debian) on top of Android on it. You'll find a description with the how-to it in my signature, but it's not for the faint hearted and only for the GNU/Linux hackers, I guess. I don't know if this is easier than porting hping3 to Android, it's up to you to decide. But it really makes it easier running non-Android code, such as hping.
The XDA thread about it is here: http://forum.xda-developers.com/showthread.php?t=1780378
This is good idea but have 2 notes ! :
The virtual machines don't have a good packet throuput per secound !
And secound is i must install hping 3 whenever i run my VM !
I search for hping that i run it without in VM . ( because of low Packet Per Secound )
mbzadegan said:
This is good idea but have 2 notes ! :
The virtual machines don't have a good packet throuput per secound !
And secound is i must install hping 3 whenever i run my VM !
I search for hping that i run it without in VM . ( because of low Packet Per Secound )
Click to expand...
Click to collapse
I'm sorry, but I've must have made myself unclear here. No virtual machine is involved here at all, no performance loss and no need to install hping3 more than once. What I describes is a runtime environment, and involves no emulation or virtualization.
Still, I do agree with you, the best solution for you is probably a hping3 compiled for the native Android runtime environment. Running Debian may be overkill.

Having Trouble Unbricking...

Hello, I'm having problems trying to "unbrick" my rezound while referring to con247's guide posted here
HTML:
http://forum.xda-developers.com/showpost.php?p=30595790&postcount=26
.
the first problem is it isn't even mounting like it should because in kmsg it keeps showing up only as ttyUSB0 instead of the expected sdX12.
the second problem is the connection is very sporadic (as in it connects and disconnects in under a full second) so when it does get detected which isn't always the case it can't write the entire hboot
here's the output from my latest attempt:
Connect device into emmc partition mode NOW
Waiting device /dev/ttyUSB0.......
Foundit!
dd: writing `/dev/ttyUSB0': Input/output error
4+0 records in
3+0 records out
6484 bytes (6.5 kB) copied, 0.210596 s, 30.8 kB/s
Return code is 256
can ANYONE help me?
I would recommend PM'ing con247 or maybe dmeadows.

[Q] genymotion failure install failed cpu api incompatible

i recently started using genymotion i am newbie as they say, i figured out how to launch apps but the problem is the apps the i installed successfully are chat or programs apps only no games apps want to be installed on the virtual device i always get this message failure install failed cpu api incompatible, i am using 2 pcs
both windows 7 x64 both got the same issue, below is a sample of the cmd commands i did with the results cmd commands i used :
The system cannot find message text for message number 0x2350 in the message file for Application.
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
The system cannot find message text for message number 0x8 in the message file f
or System.
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>adb install D
:\WhatsApp.apk
6168 KB/s (11806415 bytes in 1.869s)
pkg: /data/local/tmp/WhatsApp.apk
Success
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>adb install D
:\ClashofClans.apk
5846 KB/s (49389710 bytes in 8.249s)
pkg: /data/local/tmp/ClashofClans.apk
Failure [INSTALL_FAILED_CPU_ABI_INCOMPATIBLE]
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>
all i did i just installed these virtual devices
Galaxy S4-4.3 - API18 - 1080x1920 WXGA 10.1 Tablet - 4.3 - API 18 - 1280x800
so if u have any Questions or effective suggestions please help me
Best Regards,
Alex
you have already made 2 duplicates of this thread.. please dont make anymore.
Also this is not the right forum to address this. maybe u will have better luck here.

genymotion failure install failed cpu api incompatible

i recently started using genymotion i am newbie as they say, i figured out how to launch apps but the problem is the apps the i installed successfully are chat or programs apps only no games apps want to be installed on the virtual device i always get this message failure install failed cpu api incompatible, i am using 2 pcs
both windows 7 x64 both got the same issue, below are some of the cmd commands i used with the results:
The system cannot find message text for message number 0x2350 in the message file for Application.
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
The system cannot find message text for message number 0x8 in the message file f
or System.
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>adb install D
:\WhatsApp.apk
6168 KB/s (11806415 bytes in 1.869s)
pkg: /data/local/tmp/WhatsApp.apk
Success
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>adb install D
:\ClashofClans.apk
5846 KB/s (49389710 bytes in 8.249s)
pkg: /data/local/tmp/ClashofClans.apk
Failure [INSTALL_FAILED_CPU_ABI_INCOMPATIBLE]
E:\ABD\adt-0\adt-bundle-windows-x86_64-20131030\sdk\platform-tools>
all i did i just installed these virtual devices
Galaxy S4-4.3 - API18 - 1080x1920 WXGA 10.1 Tablet - 4.3 - API 18 - 1280x800
so if u have any Questions or effective suggestions please help me
Best Regards,
Alex

[Q] Why do I get slow writing performance ?

Hi,
I'm trying to get the best writings performance possible when transferring files from my NAS to my Galaxy Tab S using 802.11ac wifi connection. The connection link is at 700mbps so everything's fine on this side.
I compiled my own kernel with CIFS and NFS support builtin, to be user to not end up in user land when connecting to CIFS/NFS shares.
Here are the results thath I've collected :
Internal memory
Code:
CIFS => internal storage
783356357 bytes (747.1MB) copied, 49.863986 seconds, 15.0MB/s
0m49.87s real 0m0.85s user 0m47.63s system
NFS => internal storage
83356357 bytes (747.1MB) copied, 47.274252 seconds, 15.8MB/s
0m47.28s real 0m0.81s user 0m44.67s system
/dev/zero => internal storage
1073741824 bytes (1.0GB) copied, 26.634496 seconds, 38.4MB/s
0m26.90s real 0m0.00s user 0m12.75s system
External SD
Code:
CIFS => microSD
783356357 bytes (747.1MB) copied, 49.373790 seconds, 15.1MB/s
0m49.38s real 0m0.75s user 0m31.95s system
NFS => microSD
783356357 bytes (747.1MB) copied, 44.376601 seconds, 16.8MB/s
0m44.38s real 0m0.79s user 0m32.99s system
/dev/zero => microSD
073741824 bytes (1.0GB) copied, 63.342792 seconds, 16.2MB/s
1m3.64s real 0m0.00s user 0m21.11s system
My MicroSD supports transfers up to 45mo/s on my Macbook. It's a sandisk extreme UHS-I U3 64 Gb. We can see that it performs badly compared to internal storage when testing perfs with /dev/zero.
But, I also notice that if I copy from my NAS directly to /dev/null, performance increases. It's non sense because internal storage can support far more than 15 MB/s :
Code:
CIFS => /dev/null
83356357 bytes (747.1MB) copied, 31.921167 seconds, 23.4MB/s
0m31.93s real 0m0.68s user 0m13.30s system
NFS => /dev/null
783356357 bytes (747.1MB) copied, 26.449924 seconds, 28.2MB/s
0m26.45s real 0m0.63s user 0m11.49s system
I'm running Kitkat 4.4 by the way.
Does anybody can help me to understand why the writing performances are not high ? I'm pretty disapointed

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