Wi-Fi connection and Bluetooth file transfer problems ( Android-to-WindowsXP )

[SergeyKostrov]

[ Updated on December 17th, 2012 ]

I have a Wi-Fi connection problem with an Android device. So, a Samsung Galaxy Tab 2.0 (7") could not connect to:
[cpp]
Security-Enabled Computer-to-Computer network ( over Wi-Fi )
Network Authentication: Open
Data Encryption: WEP
[/cpp]
Note: The device doesn't see that type of network!

However, it could connect to:
[cpp]
   Security-enabled wireless network
   Security-enabled wireless network (WPA)
   Security-enabled wireless network (WPA2)
   Unsecured wireless network
[/cpp]
Note: Verified in many places like cafees, airports, University of Calgary campus, etc.

Any ideas, tips or suggestions? Thank you in advance.

[ Summary as of December 17th, 2012 ]

A test with a MacBook ( Mac OS X v10.7.5 ) notebook was finally done and it successfully detected and connected to our Security-Enabled Computer-to-Computer network ( over Wi-Fi / Open / WEP ) created between several computers with Windows XP and Windows 7 OSs. The test was completed in less than 2 minutes without any issues and problems.

[ Summary as of December 4th, 2012 ]

- An update from Samsung for Android OS v4.0.4 ICS was recently installed on the tablet

- Wi-Fi Advanced Configuration Editor was installed on the tablet
  The application allows to see and edit advanced settings of a Wi-Fi network and it is
  downloaded from: market.android.com/details?id=org.marcus905.wifi.ace

- Linksys 'Compact Wireless-G USB Network' adapters are used on some desktop computers with Windows XP

- The following advanced settings of the 'Compact Wireless-G USB Network' adapter:

   NetworkType
   ShowHiddenSSID
   WEPKeyUse
   SmartScan
   IEEE80211H
   WirelessMode
   CountryRegion
   CountryRegionABand
   AutoChannelSelect
   Channel

   are considered as the most important and were modified many times during many tests

   Note 1: NetworkType is set to 802.11 Ad Hoc

   Note 2: Widest possible ranges for channels were selected:

   CountryRegion ( Country Region 11G ) - #5 Channel ( 1 - 14 )
   CountryRegionABand ( Country Region 11A ) - #7 Channel ( 36 - 165 )

- Microsoft Network Monitor v3.4 was used on some desktop computers with Windows XP

- A Wi-Fi Signal Strength is always 'Excellent'

- A workaround based on a Bluetooth connection was considered, it works and tested. However, a transmittion speed and a distance between tablets and computers are two significant constraints:

  A transmittion speed limitation of the Bluetooth connection - it takes too long to transmit large data files

  A distance limitation of the Bluetooth connection - a tablet could be away ( many meters ) from a computer with Windows platform
  Notes:
  - That computer could be considered as a 'Bluetooth Server'
  - Some number of Bluetooth adapters are also needed 

[Bernard]

>>>Yes.>>> Is not strange? Could that be some "conspiracy" against the Windows OS.First Android and now Mac why those OS's designers could be interested in prevention of p2p wifi connection.It is simply unbeliveable.

[Bernard]

@Sergey Can you look please at my updated sine function's thread?I posted there very interesting issue rlated to the inline sse assembly.

[Bernard]

>>>. I'll try arrange the test again.>>> Did you perform that test again?

[SergeyKostrov]

... [ Summary as of December 17th, 2012 ] A test with a MacBook ( Mac OS X v10.7.5 ) notebook was finally done and it successfully detected and connected to our Security-Enabled Computer-to-Computer network ( over Wi-Fi / Open / WEP ) created between several computers with Windows XP and Windows 7 OSs. The test was completed in less than 2 minutes without any issues and problems. ... Tao, >>Regarding this forum thread, here are the responses from Intel Android WiFi team: >> >>It seems that you are trying to use ad-hoc/IBSS on stock ICS. Android doesn't really support ad-hoc networking completely... And it is proven already. In the end I really don't know who should I blame for that incompatibility, that is, Google or Samsung? Even if I will look at "stock" source codes of Android ISC operating system I don't think I will be able to get a complete set of sources from Samsung. Also, a test with a Blackberry device will be done some time later in order to verify that Security-Enabled Computer-to-Computer network ( over Wi-Fi / Open / WEP ) created between several computers with Windows OS is not just for Windows or Mac OSs. What I see now is that Apple and Microsoft cooperated and didn't try to create incompatibilities when it comes to applications of Wi-Fi networks of any types (!).

[Bernard]

>>>A test with a MacBook ( Mac OS X v10.7.5 ) notebook was finally done and it successfully detected and connected to our Security-Enabled Computer-to-Computer network ( over Wi-Fi / Open / WEP ) created between several computers with Windows XP and Windows 7 OSs. The test was completed in less than 2 minutes without any issues and problems.>>> It is good to hear that at least one non-Windows computer has successfully established ad hoc connection with the Win host. Regarding your security settings why do not you enable WPA/WPA2 cipher suite?As I stated earlier in my post WEP had been proven as an unsafe and easily breakable.

[SergeyKostrov]

>>...Regarding your security settings why do not you enable WPA/WPA2 cipher suite? As I stated earlier in my post WEP had been >>proven as an unsafe and easily breakable... This is not for applications in finance or defense. Too much time is spent already ( on WEP, etc ) and all data could be encrypted if it is really needed.

[Bernard]

>>>This is not for applications in finance or defense. Too much time is spent already ( on WEP, etc ) and all data could be encrypted if it is really needed.>>> If your data is not sensitive then WEP is fine.At least nobody will be able to parse your data with the Wireshark.

[Bernard]

Hi Sergey! Do you have any update related to Android ad hoc connection? Regarding your AWE test app I have not forgotten and soon I will test it on Win XP pro.

[SergeyKostrov]

A message to a forum moderator: I don't understand why the thread was moved to Mobile Software Development forum?

[Bernard]

>>>I don't understand why the thread was moved to Mobile Software Development forum?>>> What forum was your thread initially posted in?

[SergeyKostrov]

>>>>I don't understand why the thread was moved to Mobile Software Development forum? >> >>What forum was your thread initially posted in? Android applications on Intel architecture Web-link: http://software.intel.com/en-us/forums/android-applications-on-intel-architecture

[Bernard]

>>>Android applications on Intel architecture>>> Do you have any updates related to your Android ad hoc connection issues? Did you try various enablers?

[ucentpw]

this may due to settings mismatch. try reset settings on your mobile once

[Bernard]

No it was explained by one of the Intel guys.Read posts from fourth page.

[deffy_f_]

I use airdroid to transfer files between android phone and computer, it supports wireless transfer. And an android file transfer tool can also support text messages, contacts photos transfer.

[SergeyKostrov]

>>...I use airdroid to transfer files between android phone and computer,... Thanks for the information. The problem was finally resolved a long time ago using a Bluetooth based transfers.