I'm not sure whether this post belongs here, but I have googled high and low and I have not found anything that directly pertains to my Samsung Galaxy S2 issue. And here at XDA, the VPN questions seem to be about private VPNs (not commercial).
I am currently running Android 2.3.4 Gingerbread.XXKG6
I follow these steps for connecting to a LT2P
www_dot_hopthewall_dot_com/wiki/wiki/Android_L2TP_Over_IPSec
And these for PPTP
www_dot_hopthewall_dot_com/wiki/wiki/Installing_personalVPN-PPTP_on_Android_Mobile_Phone
I have tried the PPTP and L2TP
Both fail to connect
L2TP yields:
"Unable to connect to network. Try again?"
But no additional error message.
PPTP however, seems to allow the connection.
I connected a few times.
I used pptp.sfo.witopia.net. as the VPN server
That seemed to let me connect a few times;
and according to hide-my-ip.com I had an L.A. IP
But now, when I try to connect, I'm getting an error message that reads:
"Server hung up. User name or password incorrect. Try again?"
But I didn’t do or change anything. I just tried to connect as usual.
I've tried
restarting the phone.
waiting a while.
Connecting with the computer (connects without a problem)
I tried connecting to the different VPN servers.
I also tried connecting changing the VPN server from URL to an IP address,
but that just tells me "Unable to connect to network. Try again?"
I am at a loss...
I have tried at home, on my wifi account...
The same one that my computer is on, but no dice.
The VPN service provider is also at a loss.
They said "...iPhones connect all day..." (talk about a kick in the teeth)
They asked me if I wanted to cancel my account and request a refund.
Nice.
Thanks for the replies.
This forums are always so helpful.
No, that's okay, don't get up. I'll get that.
A two part work around I found was:
PART I
Sharing the VPN Connection Over WiFi by Converting my Laptop into WiFi VPN Router. An article by BESTVPNSERVICE.COM
Using a Windows 7 machine with a Wi-Fi NIC
1) Click on your computers start button and in the search box type “cmd” and wait for it to appear on the menu.
2) After it appears, right click on it and select “Run As Administrator”.
3) When the Black Command Prompt Opens up, type the following command and press enter
4) netsh wlan show drivers
5) You will see something like the following image. If the ‘Hosted Network Supported’ (in the red square) say ‘Yes’, it means the driver is installed and if it says ‘No’, download the drivers.
6) Once it is made sure that you have the required driver, it’s time to set it up.
7) Type netsh wlan set hostednetwork mode=allow ssid=test key=password. Following Screen would appear. (Devices will detect network SSID as “test” change it to anything you want. Moreover, ‘key’ is your password which in this case is ‘password’, change it to whatever you want, I would suggest you to not to use numbers in password)
8 ) Then type, netsh wlan start hostednetwork. You will see the messages illustrated in the snap shot.
9) If you see the message that the ‘hosted network couldn’t be started’, then your WiFi driver is outdated, the best way to update the WiFi driver is Run you Windows Update or download the latest version from its official website.
10) Now that we have setup hosted network, we will make sure that it is shared on public Wi-Fi.
11) To do this, click on your Wi-Fi signal buttons on the bottom right hand corner of your screen.
12) Click on ‘Open Network and Sharing Center’.
13) Then click on Change adapter settings.
14) Click on the Connection that has description of ‘Your Created VPN Connection’ and right click on the Icon to go to its properties.
15) In Properties, go to ‘Sharing’ tab and check on ‘Allow Other Network User to connect through this computer…’
16) From the drop down menu of ‘Home Networking Connection’, Select the connection which had a description of ‘Microsoft Virtual WiFi Miniport Adapter’/’Virtula AP’ or it can be ‘Wireless Network Connection 2’ as in my case.
17) Check on the ‘Allow other network users to control or disable….’ Option as well.
18) Click ok and you are all set to go now.
19) Connect your VPN and ask your Friends or Colleague to discover your VPN enabled WiFi Connection.
20) Now, whenever you will restart your computer, your Shared WiFi connection will be disabled. You will have to reenter only the following command in the command prompt to enable it again.
netsh wlan start hostednetwork (or create a custom batch file for this, if you want to avoid reentering the command every time).
PART II
If the wi-fi direct on your phone isn't discovering your freshly created network,
you may need enable Ad Hoc connections for it.
For that I looked at an article here; but instead of Root Explorer is simply used ES Explorer:
Download this version of wpa_supplicant
Like I said, I used "ES Explorer"
• use "ES Explorer" to mount /system/bin/ and make a backup of wpa_supplicant
• rename the current one to wpa_supplicant.bak and copy the new wpa_supplicant to /system/bin
• then we need to adjust the permissions on the file to:
ticked - All options in the read and execute columns; and write column owner row
unticked - write column & group row; write column & others row.
• change /system/bin back to read only
• disable and re-enable wireless
• now your adhoc wireless network should be listed with the other wireless networks and you can connect.
After this two maneuvers, I was able to connect my phone to my laptop using my laptop's internet access and thus connecting to the VPN.
I find that the order of network activation matters.
What I mean is:
First connect to the internet (router, modem, or however that may be)
Then connect to the VPN
And then activate and connect to the hostednetwork.
I hope this helps someone, despite the fact that you have to be within wifi range of your windows machine. It's not quite the same as being on the streets and connecting to your VPN -but Android can't [consistently and reliably] connect to VPNs. And since no one replied to me here it stands to reason that no one knows how to get Android to connect to commercial VPN services (not even WiTopia's tech support).
How ad-hoc networks can be enabled this device?
I have tried two ways to enable Ad-Hoc networks on Android device, but no one work.
Replace wpa_supplicant with hacked variant is not work. After enabling Wi-Fi i see bootlogo and "restarted" Android. And this will loop, until i place original wpa_supplicant in /system/bin. I tried six hacked wpa_supplicant binaries.
And editing wpa_supplicant.conf is not work too, i don't know why.
Help me with this, please. I do not want to throw device in the trash, just because of defectiveness Android.
I have successfully overwritten the wpa_supplicant and I am able to see my ad hoc network created from my windows 7 pc. It was stuck on an endless loop of obtaining ip address. I then changed to a static ip, and at this point my phone connects to the open ssid, but the pc still says waiting for connection.... in other words it does not work.
I have used and tried the custom sII and the international note's wpa_supplicant to enable ad hoc, and I am wondering if using a wpa_supplicant for the international note on my ATT note is a bad idea.
I am on stock rom and rooted with superuser access
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My Samsung Galaxy Note 10.1 n8000 started this message after flashing my device with kitkat rom either on 3g or wifi and tried everything and I have only one line in hosts file ... What can I do ?????????
I have strange problem with my recently bought Lenovo tab2 (android 4.4.2)
I have to use eap-tls wifi.
I can import certificates, they shows under /data/misc/keystore/user_0 directory
but I can't pick any cert with wifi configuration form.
I tried to google but without success.
How can I configure my wifi?
I can edit wpa_supplicant.conf if it would be only method.