Was @ SFO (San Francisco airport) last week and I couldn't connect to the free wifi! My dad's netbook connected just fine though.
This is legit free wifi sponsored by ebay or something, ads around the airport for it.
What was weird was this: G2 was connected to "sfo free wifi" (or whatever it's named) NOT the t-mobile hotspot. I cycled and reconnected many times.
BUT everytime I went to the browser, for some reason it displayed the tmo hotspot login. Did t-mobile break my phone? It's a stock ROM.
The weird thing was the netbook connected fine, but my dad's fake iphone had the same problem as mine...
A bit ticked off at this glitch, any solutions or explanations? I repeatedly cycled wifi on and off, and I also came back another day with the same problem after reboot. I also tried using "wefi" but that didn't help either.
Did you go into wireless networks and try connecting from there? And disconnect from the T-Mobile one?
Of course!
Tried everything, forget, reconnect, cycle wifi etc.
Weird glitch.
Are you sure that the SFO free wireless isn't just provided by TMO? In my experience, most free wifi networks require that you accept some terms and conditions before connecting. Maybe the mobile browsers aren't capable of showing the content?
Did you get a similar screen on the netbook, but with a pop-up terms and conditions?
cparekh said:
Are you sure that the SFO free wireless isn't just provided by TMO? In my experience, most free wifi networks require that you accept some terms and conditions before connecting. Maybe the mobile browsers aren't capable of showing the content?
Did you get a similar screen on the netbook, but with a pop-up terms and conditions?
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I've noticed a similar thing with wifi at my friends house. He has the Cisco Valet, I think, and it has a main wifi (closed) and a guest wifi (open but password protected). On my laptop I'd open the browser and get a login page, like at a hotel. On the phone though, this doesn't happen. It'll connect, but can't browse. I'm thinking this is a similar thing. Even though, in your case, free and not password protected on the phone nothing pops up to accept terms or whatever.
My 2 cents.
SFO free wifi: NO login screen just go. Worked perfectly on iPhone and netbook.
T-mo: Login screen.
There is no mistaking anything, worked perfectly on iPhone and netbook.
I connected to both on G2, cycled/forget everything multiple times, it's a weird glitch.
Was wondering if there was a fix or some kind of setting to change, looked through the menu but there are only options to select which network, that's about it.
I'm having trouble getting wifi tether to work with 4G. It was working fine yesterday, and nothing has changed between when I last used it and now. The weird part is, when connected to 4G and tethered I can go to any Google site, but nothing else will load. When I'm connected to 3G everything works. I thought maybe it was that wifi tether is set to use Google's DNS and perhaps Google was having issues, but why would they work for 3G and not 4G. Do you think Sprint/Clearwire is blocking Google's DNS in an effort to curb unpayed tethering on 4G? Any other ideas?
Edit: I've tried a few different free DNS services and the same thing happens with all of them. No connection issues on 3G, but ONLY Google pages will load via 4G, regardless of which DNS service I'm using. This is a very strange problem....The only two things I can think of is Spring/Clearwire blocking DNS services or there's some sort of bug on the 4G network at the moment.
I'm seeing the same issue, and I did the same troubleshooting steps. It's almost as if they are inspecting http headers and checking the MAC against some database. Hopefully something is just broke on Sprint's side, though.
Co-signing. 3G wireless tether works while 4G doesn't.
Same Problem in NYC
Hey Guys, glad I found this post. Thought I was going crazy. Everything is fine on 3G but only google sites and certain non picture portions of other websites will load on 4G.
Strange thing is that all websites are fine on the phone itself while on 4G.
Heard someone that's using the paid sprint hotspot is having the same issue, so I'll keep my fingers crossed that this is a temporary issue.
rpav2004 said:
I'm seeing the same issue, and I did the same troubleshooting steps. It's almost as if they are inspecting http headers and checking the MAC against some database. Hopefully something is just broke on Sprint's side, though.
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What? You do realize that the only MAC Sprint ever sees is that of the phone, right? As for inspecting headers, not only would that be trivial to get around, but it would also be likely to cause breakage in third-party browsers as the whitelist would likely not be complete. Reliable browser detection via HTTP is near impossible. That also would have no effect on non-HTTP traffic, IMAP e-mail or an XMPP instant message connection for example.
wolrah said:
What? You do realize that the only MAC Sprint ever sees is that of the phone, right? As for inspecting headers, not only would that be trivial to get around, but it would also be likely to cause breakage in third-party browsers as the whitelist would likely not be complete. Reliable browser detection via HTTP is near impossible. That also would have no effect on non-HTTP traffic, IMAP e-mail or an XMPP instant message connection for example.
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I believe there is an individual MAC for every radio in the phone, so you would have a unique MAC for your cell radio, wimax radio, bluetooth radio, etc. Also, I don't believe he's referring to the browser's identity info, but the packet headers that contain DNS/tcp/etc. info that all network services use. That would have an effect on ALL traffic, and it clearly does as nothing works expcept most google services.
I have been usb tethering with CM7 since GB6 and it would switch back and forth between 3G and 4G without any problems. Pre GB roms would require google tether which would only work on 4G.
I am now experiencing the same dead 4G tether and am not droping back to 3G since the 4G signal is good. Yep like everybody else the phone by itself is connecting and browsing.
All tether traceroutes and pings seemed reasonable. Flashed back to an earlier working release and it also failed. I have not tried any port other than 80 at this time.
marcog42 said:
Heard someone that's using the paid sprint hotspot is having the same issue, so I'll keep my fingers crossed that this is a temporary issue.
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I just added the Sprint HotSpot to my account and I can confirm that it's working flawlessly with 4G. Even with the HotSpot feature on the account, wireless tether will not work.
Imap works, SMTP works, ftp works, ftp via browser (port??) or any other browser activities do not work while tethering on 4G.
Port 80 and/or tethering via browser is hosed.
What wifitether version is everyone using? I'm using 2.0.5
Well, I got home connected to 4G and tethered to my laptop. Everything worked. Might be dependant on what tower you're connected to. I'm using wifi tether 3.0 pre11, but had the issue with 2.0.7.
marcog42 said:
Well, I got home connected to 4G and tethered to my laptop. Everything worked. Might be dependant on what tower you're connected to. I'm using wifi tether 3.0 pre11, but had the issue with 2.0.7.
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Click to collapse
I believe you're correct. I downloaded 3.0 pre11 and still nothing. Strangely enough it would allow streaming of an Amazon video on the browser but it worked on 2.0.5 as well. I wonder what clearwire is doing on their end. Does anybody have any ideas on circumventing it?
wolrah said:
What? You do realize that the only MAC Sprint ever sees is that of the phone, right? As for inspecting headers, not only would that be trivial to get around, but it would also be likely to cause breakage in third-party browsers as the whitelist would likely not be complete. Reliable browser detection via HTTP is near impossible. That also would have no effect on non-HTTP traffic, IMAP e-mail or an XMPP instant message connection for example.
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Click to collapse
I didn't go into much detail since I was posting from my phone, but allow me to expound now. Wifi-tether does nothing more than NAT your internal network to it's live IP address, whether that be on 4G or 3G. Both of these radios have the physical addresses that would not be hard to trace on a cellular network. When the packets are transmitted, as is the case with any packet transmission, the only information that gets changed as the packet passes through the NAT is the IP address. All of the other information stays the same. Now, in terms of most traffic, this isn't a big deal, but with HTTP and HTTPS traffic, the stream of data sent contains the header of the browser sending the request. Since the NAT doesn't mask this data, it's sent out into the wild blue yonder (Sprint's Clearwire WAN) where the capability of inspecting the packet header is very easy to do with most enterprise grade equipment. Now, while any blacklist of headers will inevitably be incomplete, a very simple whitelist of 'known' headers - such as mobile browsers on the market and the included browser on the phone - can be implemented with a few short lines of code. Now, while it might seem trivial, how many users are going to attempt to obfuscate or change their packet header identifiers just to get online? They'll give up, use another connection, or just view the pages on the phone.
I tested this for awhile today, using multiple different browsers on my PC and got nothing. I opened up a VPN connection to my workplace, and routed all my traffic through that (that is, encrypted in an IPSEC tunnel) and the internet worked fine. The most brilliant part, from Sprints point of view, is that the HTTP session is never actually 'closed', just kept in a perpetual waiting state where no data is transmitted. If this is all a fluke, it's the best bandwidth saving fluke Sprint could ever dream up.
All in all, I'm really really hoping this is a snafu, but all signs are pointing to sprint catching onto our usage, which is a huge uh-oh.
edit: I was still able to ssh and telnet via my tether, and open up the VPN and receive email, which points to this being a targeted attack on HTTP. Double uh-oh.
Firefox, IE, Opera, Epithany, Chromium, Midori and Konqueror all fail.
Port 80 traceroute is good.
Does anybody knnow of an agent switcher that can be used?
What about downloading Adfree and installing the host files. That fixed my data issues on my Evo.
Sent from my PC36100 using XDA App
This appears to be a new sprint development. Are you saying that you can tether with 4G?
Aha... finally found some people who are having the same issues, 4g just stopped working with wireless tether about 3 days ago. 3g works just fine, and 4g connects and is pushing data to the phone, but no webpages are loading on my laptop when 4g is on... I'm out of 4g range right now, but will check back in when I'm back in range tomorrow.
It's working for me again. I'm replying to this thread using my wifitether uder 4G.
Working again here too.
Does anyone know what this is and why it could be failing constantly? After I get the message it fails, I can't even go into the browser and accept the terms and conditions like you normally would to get internet. Kind of irritating, since I rely heavily on wifi connections for data since I no longer get good service in my area (I used to get full bars) I've only been able to use Google wallet once due to the poor service.
Sent from my SPH-L710 using xda premium
adima said:
Does anyone know what this is and why it could be failing constantly? After I get the message it fails, I can't even go into the browser and accept the terms and conditions like you normally would to get internet. Kind of irritating, since I rely heavily on wifi connections for data since I no longer get good service in my area (I used to get full bars) I've only been able to use Google wallet once due to the poor service.
Sent from my SPH-L710 using xda premium
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Click to collapse
I have the same problem. It works fine with my home network, but not in my office. I can't control that network. Another colleague with the AT&T Galaxy S3 doesn't have any problems connecting to this network. Seems to be a Sprint problem. Even the message that pops up has a Sprint logo.
what worked for me is to turn off the sprint connections optimizer. Everything works a lot better now and no more errors for me.
Is there any way to prevent your data connection from being lost when a secured Wifi network is within range. I don't understand why the phone gives a secured wifi network preference over your carriers network... effectively preventing any data connection until you turn off wifi.
Just one example of this annoying problem came when I was navigating to a job location and a road was closed. GPS could not reroute me because I was in a residential neighborhood picking up lots of wifi networks. All the them were secured. So... in order to reroute I had to toggle off my wifi so that my phone would go back to connecting through my carrier.
Why do phones do this? Until your device obtains an IP address from the wifi hotspot it should not bypass the carriers data connection. Is there any way around this that doesn't require constantly turning wifi on and off?
Many thanks...
JIW said:
Is there any way to prevent your data connection from being lost when a secured Wifi network is within range. I don't understand why the phone gives a secured wifi network preference over your carriers network... effectively preventing any data connection until you turn off wifi.
Just one example of this annoying problem came when I was navigating to a job location and a road was closed. GPS could not reroute me because I was in a residential neighborhood picking up lots of wifi networks. All the them were secured. So... in order to reroute I had to toggle off my wifi so that my phone would go back to connecting through my carrier.
Why do phones do this? Until your device obtains an IP address from the wifi hotspot it should not bypass the carriers data connection. Is there any way around this that doesn't require constantly turning wifi on and off?
Many thanks...
Click to expand...
Click to collapse
Never had this problem.... My GS3 has always ignored secured and unsecured wifi networks unless I specifically request to connect to them. The only thing I can think is that its trying to connect to the same SSID that you're using at home like "netgear" or something. If that's the case, shame on you for not changing your default SSID at home.
If not, what setup are you on? Stock/rom/kernel etc.
My SSID does not match anything out there. It happens all the time. When I go to my kids favorite park my phone tries to connect to a cablevison hotspot. When I open an app like Facebook or tapatalk it just hangs. If I open a web browser I get redirected to one of those sign in pages. As soon as I turn off wifi I go back to 4G and browse as normal.
This happens on every phone I've ever owned including my wife's phone, parents phones and brothers phone. I just figured it was something everyone dealt with.... Was hoping for a work around.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
JIW said:
My SSID does not match anything out there. It happens all the time. When I go to my kids favorite park my phone tries to connect to a cablevison hotspot. When I open an app like Facebook or tapatalk it just hangs. If I open a web browser I get redirected to one of those sign in pages. As soon as I turn off wifi I go back to 4G and browse as normal.
This happens on every phone I've ever owned including my wife's phone, parents phones and brothers phone. I just figured it was something everyone dealt with.... Was hoping for a work around.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Click to expand...
Click to collapse
doesn't happen on my phone.
Randomacts said:
doesn't happen on my phone.
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Click to collapse
my telus s3 does this too very annoying having to turn off the wifi to use carries data
Thank you. Starting to think I was the only one
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
As some of you may or may not know...ISPs are about to put 6 strikes rules into effect:
http://www.techdirt.com/articles/20130222/14191722072/six-strikes-officially-begins-monday.shtml
In light of this I've gotten a payware VPN account from these fine folks: https://www.privateinternetaccess.com/pages/client-support/#android_ipsec_l2tp
Catch being they don't have an Android app. No prob, I'll just use the Android-built-in VPN client. Setup easily BAM!
So what is the problem?
It seems that Android 4.2.2's always-stay-connected option for VPN's is broken. I try to select it, it tells me my VPN must have DNS info (which it does have entered). Does not click. So what can I do?
If y'all have a fav VPN client with always-connect that supports IPSEC/L2TP PSK I'm all ears.
A bump. Other annoyed people figured out how to make my VPN service work using OpenVPN with always-connect. I used the instructions located here:
https://www.privateinternetaccess.c...onfiguration-on-android-instead-of-pptp-ipsec
I don't do anything crazy on my ISP at home so I could care less about the strike rule stuff. I do use FeatVPN though on my phone when I'm out and about to tunnel back to my house for data usage. I only use it when I'm on a public wifi as I do not want anyone sniffing my traffic when I'm broadcasting it to the world. When I'm on 3G or 4G I don't use it though as it is already secure.
digiblur said:
I don't do anything crazy on my ISP at home so I could care less about the strike rule stuff. I do use FeatVPN though on my phone when I'm out and about to tunnel back to my house for data usage. I only use it when I'm on a public wifi as I do not want anyone sniffing my traffic when I'm broadcasting it to the world. When I'm on 3G or 4G I don't use it though as it is already secure.
Click to expand...
Click to collapse
Well, strictly speaking 3g and 4g are only secured over the wireless end... After the data hits a tower, anyone receiving said data knows exactly who and where you are.
I believe.
Sent from my SPH-L900 using Tapatalk 2
Skripka said:
Well, strictly speaking 3g and 4g are only secured over the wireless end... After the data hits a tower, anyone receiving said data knows exactly who and where you are.
I believe.
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Actually a vpn style connection is used from the site over the backhaul providers network back to Sprint. But if you have access to the network and the means to do that then scooping my data is the least of my worries as you have access to much more including my entire account information with sprint and everyone else in the area.
I am talking about script kiddies sniffing traffic on public wifi, which is easy and takes only a 5 minute training via YouTube. The other scenario takes a bit more than a video on YouTube.
Sent from my little Note2