Database Users

PPTP VPN broken over 3G

I've run into a problem withe getting the SGS2 to connect to PPTP VPNs over 3G.
I can connect fine via wifi, but if I try connecting via 3G I get the message "Server hung up. Username or password incorrect. Try again?"
I've tried two different sims (T-Mobile Uk and Three) neither of which work but if I try exactly the same thing on my Nexus S using the same SIMs the VPNs connect fine, so I'm pretty confident that it's neither a network nor a Gingerbread issue.
I was hoping this would be something that would be fixed in the latest firmware but no luck there either.
I have dumps of the raw output from the PPTP daemon I'm trying to connect to bith when I'm trying and failing to connect via 3G and when connecting via Wifi if they would help anyone trying to track this down.
-Edit-
Just updated to the new KE2 firmware and no luck there either.

same here posted about this before.. seems a wider google bug.. but my sgs i. works fine

I've seen phones like the ZTE Blade that could't connect to VPNs at all without a firmware update but this is the first time I've encountered on that works over Wifi but not 3G.
Surely it's got to take more effort from Samsung to achieve that than just making it work properly on both

confirmed just tested with k2 firmware.. vpn pptp still not working over 3g.. back to using my sgs i since i need that functionality..
bummer

come one samsung fix. this.. this is unacceptable.. some of use need this vpn funciotnality.. just take the code from the original sgs which works.

Same problem here. I'm on KE2 firmware. I wonder if it has been fixed on KE7....
I'm reluctant to upgrade because I have several apps installed that are not available in the market for the country I'm in right now.

Just tested on k7 still broken.
Sent from my GT-I9100 using Tapatalk

How does one go about reporting this problem to Samsung? Mine was purchased on the black market in a country where it hasn't been released yet so I don't think I can do anything. Hopefully someone in the UK or South Korea, who purchased this phone from their carrier, can report this problem to their carrier or to Samsung directly.
Here is some information that may help narrow down the problem. The the PPTP connection over 3G is 100% successful when tethering the phone to PC via wifi hotspot.

lgkahn said:
come one samsung fix. this.. this is unacceptable.. some of use need this vpn funciotnality.. just take the code from the original sgs which works.
Click to expand...
Click to collapse
When you say it was working on the original sgs, which version of Android was it tested on? This might be an issue with Android since 2.2 and not specific to SGS2. Check Issue 11277 on the google code android issue site. I can't post the actual link because I'm a new member.

Same problem my USA sgs2 runnuing lighten v1.3 no VPN over 3G

A found a way to connect to a Cisco IPsec VPN on the SGS2 and it's working on WIFI and 3G. You need to be rooted and download a program called VPN Connections 0.99 from the Softpedia website (I'm not allowed to post the link).
If you need to connect to PPTP over 3G then I'm afraid you are out of luck until Samsung does something about this problem, which they probably won't.

Same problem here.
Enviado desde mi GT-I9100 usando Tapatalk

zevrosenthal said:
Same problem my USA sgs2 runnuing lighten v1.3 no VPN over 3G
Click to expand...
Click to collapse
When did the SGS2 release in USA?

Works on froyo 2.2.1 and earlier firmwares on Sgs. Initial reports are that it indeed doesn't work in gingerbread on the Sgs either.
Sent from my GT-I9000 using Tapatalk

tested and still no hope on KF1

kcchik said:
tested and still no hope on KF1
Click to expand...
Click to collapse
I just did a factory reset on KF1 and it's now working!!!!!!!! Before the reset it was also not working for me on KF1. Do a factory reset, it should work.

james1375 said:
I just did a factory reset on KF1 and it's now working!!!!!!!! Before the reset it was also not working for me on KF1. Do a factory reset, it should work.
Click to expand...
Click to collapse
are you sure you are connecting over 3g not wifi and using pptp

lgkahn said:
are you sure you are connecting over 3g not wifi and using pptp
Click to expand...
Click to collapse
Yes and yes. I can successfully connect to a PPTP VPN over both wifi and 3g after doing a factory reset on KF1. Before the reset, only wifi was working.

I have checked it and can confirm it does not work over 3g but only over wifi.
Thanks
james1375 said:
Yes and yes. I can successfully connect to a PPTP VPN over both wifi and 3g after doing a factory reset on KF1. Before the reset, only wifi was working.
Click to expand...
Click to collapse

thanku said:
I have checked it and can confirm it does not work over 3g but only over wifi.
Thanks
Click to expand...
Click to collapse
That is strange, it's working for me after the factory reset on KF1.

3 new fw's since phone came out and you still haven't fixed pptp vpn over 3g!!!

Still broken in latest ke7 firmware I just tested it. Works fine on galaxy s not galaxy s III.

lgkahn said:
Still broken in latest ke7 firmware I just tested it. Works fine on galaxy s not galaxy s III.
Click to expand...
Click to collapse
Like several other issues I've encountered, there's probably little that Samsung can do. As you can see below, other devices with Gingerbread 2.3.3 are seeing the same thing, so most likely a Gingerbread bug:
http://www.droidforums.net/forum/droid-x-roms/136977-gb-vpn-doesnt-work.html

Possible I am still running jpy froyo on the Sgs... no battery drain issues and pretty much everything is working
Sent from my GT-I9000 using Tapatalk

i can without any problem connect to our company's pptp vpn (provided m0n0wall), using the KE2 firmware i should learn to read. does work with wifi, but not with 3g. sorry.
it does work tho in the following scenario: phone does wifi tethering over 3g, notebook connects to the phone's wifi and starts a pptp vpn session.

heldchen said:
i can without any problem connect to our company's pptp vpn (provided m0n0wall), using the KE2 firmware i should learn to read. does work with wifi, but not with 3g. sorry.
it does work tho in the following scenario: phone does wifi tethering over 3g, notebook connects to the phone's wifi and starts a pptp vpn session.
Click to expand...
Click to collapse
Thanks but if I have a laptop handy I don't need to Vpn on the phone.

lgkahn said:
Thanks but if I have a laptop handy I don't need to Vpn on the phone.
Click to expand...
Click to collapse
well i do, as my notebook does not have a sim-card slot and there isn't always a open wifi around.

pptp vpn works for me now properly on KG1 even in 3G

Unstable wifi

My u8800 has a pretty unstable wifi. It looses the conection several times during connection. This is particurlarly annoyng when using the phone as a powerpoint remote over wifi and the conection breaks. Is there a death-grip on it? Or is it a software bug?
Sent from my u8800 using XDA App

gingerviking said:
My u8800 has a pretty unstable wifi. It looses the conection several times during connection. This is particurlarly annoyng when using the phone as a powerpoint remote over wifi and the conection breaks. Is there a death-grip on it? Or is it a software bug?
Sent from my u8800 using XDA App
Click to expand...
Click to collapse
I read about Blade Wifi Fix so installed today from market. I haven't been home much so not sure how it's going. It might be worth a look. Let us know if you try it.

gingerviking said:
My u8800 has a pretty unstable wifi. It looses the conection several times during connection. This is particurlarly annoyng when using the phone as a powerpoint remote over wifi and the conection breaks. Is there a death-grip on it? Or is it a software bug?
Sent from my u8800 using XDA App
Click to expand...
Click to collapse
Hello !
Well depending on what rom, if your using B133 which is possible. I recommend you upgrade to either B136 or B160 which doesn't do this.

Didnt find any wifi fix for blade in marked? Can you giive me a link?
Sent from my u8800 using XDA App

I have b33. There isnt any ota update aviable. Only one that restores the phone back to factory settings. Huawei says that I must use backupsoftware from marked. Isnt there easier solution for this?
Sent from my u8800 using XDA App

Tried a different rom? The B160 has quite stable Wi-Fi

gingerviking said:
Didnt find any wifi fix for blade in marked? Can you giive me a link?
Sent from my u8800 using XDA App
Click to expand...
Click to collapse
https://market.android.com/details?id=com.bladewififix&feature=order_history
I am sure mine is going better.

cirnocirno said:
Hello !
Well depending on what rom, if your using B133 which is possible. I recommend you upgrade to either B136 or B160 which doesn't do this.
Click to expand...
Click to collapse
I've updated to B136 and still have pretty awful wifi, disconnects all the time and doesn't reconnect despite my connection being remembered. Usually displays as 'disabled' when I check the settings.
I'm thinking of getting another handset it's so bad

langers1972 said:
I've updated to B136 and still have pretty awful wifi, disconnects all the time and doesn't reconnect despite my connection being remembered. Usually displays as 'disabled' when I check the settings.
I'm thinking of getting another handset it's so bad
Click to expand...
Click to collapse
I tried to setup 802.11n only for my wireless router at home. It's very stable and never breaks. I once setup 802.11g only, i experienced disconnection about twice an hour.
Sent from my IDEOS X5

Yes, I'd been thinking that it might actually be more to do with my router as it's an old Netgear DG834v2. Will have a play this evening

Cannot connect to Wifi hidden SSID!
Hi there!
Huawei X5 - U8800
Android ver. 2.2.1
Kernel ver. 2.6.32.9-per
[email protected]#1
Build: B160
There is no chance to connect to Wifi hidden SSID!
I tried with previous builds also (B136).
EAP method: PEAP auth
Phase 2 auth: MSCHAPV2
Anyone knows this problem yet?
Any solutions?
Brgds,
S.

Unhide the SSID... If is the Desire HD there is an "issue" with froyo + Hidden SSID's... found out after having 3 days of the same problem, did some digging and found it doesn't like the Hidden SSID.
The other option is using a program like WiFi Connector which forces a connection to a Hidden SSID, not tried it myself but apparently is works.

Thanks for the info. I cannot "unhide" it because it is a company hidden SSID
I will try this Wifi Connector ...but i tried some other apps before without success
Any other thoughts ?
Brgds,
S.

Unfortunately it doesn't work either with Wifi connector

Any known custom ROM with this bug fixed?

BookBu said:
I tried to setup 802.11n only for my wireless router at home. It's very stable and never breaks. I once setup 802.11g only, i experienced disconnection about twice an hour.
Sent from my IDEOS X5
Click to expand...
Click to collapse
I've only got g&b as options, wonder if I need to upgrade my router to and b,g and n compatible?

langers1972 said:
I've only got g&b as options, wonder if I need to upgrade my router to and b,g and n compatible?
Click to expand...
Click to collapse
Yes, I guess you'd better upgrade your wireless router coz 802.11n is way better in terms of stability and signal strength.

mesnati said:
Any known custom ROM with this bug fixed?
Click to expand...
Click to collapse
I personally don't think this is a bug indeed. It comes to the same problem for some USB wireless clients in the market.
I suggest that you can solve this problem by choosing "Add Wi-Fi Netword" manually. This option is at the bottom of the list. After pressing it, you'll be asked to input the SSID as well as the encryption (WEP, WPA2, ... etc). Provided that you input them correctly, you should be able to connect to that specific SSID.

Hi there!
I know how to mannualy add SSID and enc. settings... it's not problem in setting tough but in software version of Android i guess. When i set Phase 2 Auth to: MSCHAPv2 or whatever ... after i am getting back into settings Phase 2 Auth is set back to: NONE
I'am stuck ...

I guess you need to ask your IT colleagues if they have enforced additional security in their wifi setup like MAC address allow list and limited DHCP.
Sent from my IDEOS X5

Cm7 and tethering...

Hey all, just updated to cm7 (jt, you are my hero). I was wondering what I need to download for tethering. I tried using the old wifi_tether app I had from froyo and what not but it does not seem to be working. Any ideas?
Sent from my SCH-I500 using Tapatalk

Barnacle works if all you need is ad hoc (tethering a windows machine), but I haven't found anything that will do access point.

You don't need to download anything... it's built in. Go to: Settings --> Wireless and networks --> Tethering and portable hotspot
Sent from my SCH-I500 using XDA App

etho201 said:
You don't need to download anything... it's built in. Go to: Settings --> Wireless and networks --> Tethering and portable hotspot
Sent from my SCH-I500 using XDA App
Click to expand...
Click to collapse
Yes, it's there, but doesn't work on my phone. Have you successfully tethered with it?

I use barnacle as well and it works great on my laptop running windows 7 and I have never had any issues with wireless devices and ad-hoc I let friends from work pull from my wifi all the time, maybe I'm just one of the lucky ones
Sent from my SCH-I500 using XDA Premium App

I can verify that my computer at least recognizes the portable hotspot but I did not try to connect to it. Will try tomorrow and will report back.
Sent from my SCH-I500 using XDA App

jami2976 said:
I use barnacle as well and it works great on my laptop running windows 7 and I have never had any issues with wireless devices and ad-hoc I let friends from work pull from my wifi all the time, maybe I'm just one of the lucky ones
Click to expand...
Click to collapse
The issue arises if you're trying to tether an android tablet. They won't use ad hoc out of the box.
etho201 said:
I can verify that my computer at least recognizes the portable hotspot but I did not try to connect to it. Will try tomorrow and will report back.
Click to expand...
Click to collapse
I'll be anxious to hear the results.

Got barnacle working! Thanks guys

woolster22 said:
Hey all, just updated to cm7 (jt, you are my hero). I was wondering what I need to download for tethering. I tried using the old wifi_tether app I had from froyo and what not but it does not seem to be working. Any ideas?
Sent from my SCH-I500 using Tapatalk
Click to expand...
Click to collapse
Android WIFI Tether should works great for me. I am able to do the wpasuplicant authentication again as well. This app is no longer in the android market so you will have to download direct from the source. There is an updated beta version which does work in CM7 7/17 release.
http://code.google.com/p/android-wi...tail?name=wifi_tether_v3_1-beta2.apk&can=2&q=

No offense, but I feel Barnacle is crap. It is one of the only WIFI tether apps that is unable to do WPA authentication. WEP can be cracked in under 5 minutes with open source tools which leaves you vulnerable to man in the middle attacks. The CM7 hotspot even does WPA.

VPN works fine in Wi-Fi but not with 3G

I'm hopeless here. I have a paid VPN service, and it works perfectly with my PC, with my mobile on Wi-Fi and with my friend's mobile also on 3G, but not on mine. For sure there's something wrong with my device. I tried hard reset, different ROMS and all different servers and settings.
It does connect to the VPN and it keeps up the connection, but internet just doesn't work. Anyone have any idea why this is happening? I tried to search other threads about this, but no success.
Thanks
Raphael

Same here ... I search but nothing ... I'm on Ressurection Remix 3.1.3 with Kernel cm 10.1... VPN in 3G don't work

Have you tried the app Go to my p.c. app?
Sent from my HTC Sensation XE with Beats Audio Z715e using xda app-developers app

vpn thrue 3g and mobile connection
hi
reason, routing.
1. you have to setup your vpn connection to route any data between your vnp-connection.
or
2. you use another apn who route unsecured and secured data to different routes.
(secured data = VPN, unscured Data => www)
Check the isp apn if it use a stateful paket inspection firewall. this apn can ussually only route secured data (vpn).
Its no bug its a feature to solve some problems like too much connections, timeouts, reduction of hacker attack surface, and more..
you can find this information in the special vpn-whitepaper from your isp.
i hope this helps you.

How does the go to my p.c. app work?Is it pretty good app. Thanks
Sent from my HTC Sensation using xda app-developers app

3g provider at fault
raphaelgoncalves said:
I'm hopeless here. I have a paid VPN service, and it works perfectly with my PC, with my mobile on Wi-Fi and with my friend's mobile also on 3G, but not on mine. For sure there's something wrong with my device. I tried hard reset, different ROMS and all different servers and settings.
It does connect to the VPN and it keeps up the connection, but internet just doesn't work. Anyone have any idea why this is happening? I tried to search other threads about this, but no success.
Thanks
Raphael
Click to expand...
Click to collapse
One thing I notice not all 3G provider allow VPN traffic. Orange is one that I discovered not allow VPN via 3G.

tinbox134 said:
One thing I notice not all 3G provider allow VPN traffic. Orange is one that I discovered not allow VPN via 3G.
Click to expand...
Click to collapse
When you set up the VPN on your phone, make sure you fill out the forwarding fields as 0.0.0.0/0.0.0.0 otherwise no traffic will be forwarded through it. Testing on wifi from the same location as the host is a miserable way to test VPN as it tells you nothing. Turn off the wifi, and always test on your mobile data. There ARE carriers out there that WILL filter out VPN connections for normal user accounts and require you sign up under a business-class account to use such connectivity, this is because they want more money from you, and to not give you an easy way to get around their tethering detection. Plus in some countries, you're not allowed to possess the capability to encrypt and secure your own data/traffic and the means of encryption are banned (and therefore filtered "on-the-wire").

Use VPN Service that has open port. Like http://xtreamvpnworld.blogspot.com ive been using it for more than a year. I got no problem.
Sent from my WT19i using xda premium

@ephraim25.. sir may be you can help me with my problem i've already established my vpn all working except for all my chatting application not working i can't recv any reply like my viber,talk,skype,tango.. but if i turn off my vpn everything run smoothly.
btw.. i'm using samsung galaxy s3 built-in vpn, everything stock but rooted.

rapnix said:
@ephraim25.. sir may be you can help me with my problem i've already established my vpn all working except for all my chatting application not working i can't recv any reply like my viber,talk,skype,tango.. but if i turn off my vpn everything run smoothly.
btw.. i'm using samsung galaxy s3 built-in vpn, everything stock but rooted.
Click to expand...
Click to collapse
That's seems odd. Anyway I haven't tried built in vpn, how about openvpn? Have you tried it? I think built in vpn doesn't support voips like viber etc. Or maybe your vpn provider does not. I really don't know. Because I tried using droid and xtream vpn it works on every chatting platforms.
Sent from my WT19i using xda premium

@ephraim25 tnx sir.. i'm going to try that open vpn tnx again....

No problem just tell me if you had set up so I can give you free premium vpn account access.
Sent from my WT19i using xda premium

@ephraim25 well that's great tnx i'll try this
ok i've installed already OpenVPN for android then how can i have this FREE PREMIUM vpn?