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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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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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.
Related
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 work for a company that provides free WiFi for guests and employees. In order to access the WiFi network, you have to acknowledge that you agree to the terms and services.
When I arrive for work each day, I pull up any random web page and am taken to an internal web page where I have to acknowledge the terms and services of the WiFi service. After doing that, I am granted access to the network. Unfortunately, the access does not remain in place for the duration of my shift. Even though the Evo shows that I am connected to the guest wifi network, I can't connect to the internet unless I pull up a browser and get back to the page where you acknowledge the terms and services. I may have to do this 5 or 6 times a day to connect back to the internet.
Does anyone know of a way to prevent getting kicked off of the guest wifi network using an app or some other method?
I do this at work too. My question for you is do you sit in one place all day long and you still lose the authentication?
I only lose mine because I travel around between floors or leave the building, breaking the connection, requiring me to authenticate when I connect again.
My workplace also does this, however it is timed for 15 mins to disconnect each user.
My phone tells me that the network requires a browser login to gain access, the first time. After I'm logged out it stays connected but I then have to re login.
Old linksys router used at my job.
Sent from my PG86100 using xda premium
deathsled, I do move from place to place at work . . . I had not considered that that could be causing loss of connectivity. We have multiple wifi access points in the department and in my area.
Given that info, would there be any way to continue to hit the same access point in a smaller area, without requiring re-authentication?
I had wondered if there was a program running in the background that required low bandwidth, but continual, that it could keep me connected at all times. Something like streaming music may be too much bandwidth. I was looking for any other ideas out there.
In case anyone cares, after flashing Classic v0.0.9 rom (was on v0.0.6) I no longer have loss of connectivity issues. Thanks Tommy!
Sent from my AT100 using xda premium
I have no T-Mobile tower reception at work, and was looking forward to the wifi calling capability to come to the rescue with this new phone/service. Unfortunately, my work wifi requires a proxy-serverort for browser connection, and once I update the wireless connection with these settings - I am able to browse fine.
Regardless of the wireless signal strength, the WiFi Calling status states : Poor WiFi signal, before timing out with REG99 error - unable to connect. I have also noticed on this phone and the HTC EVO 4G, that while on wifi at work, my download speeds (via speednet) are high (>10mbps), but nothing shows up in the upload section.
Given the above, and knowledgeable of the fact that my corporate network does shut down access to other ports - is there any workaround to enable wifi calling behind a proxied network? I have even tried to add a new APN to include the proxyort to no avail.
wifi calling from the home network works without any issues, and yes i am rooted.
TIA for any help.
Found the solution. Turns out that accessing the proxied wireless network was the root cause of the issue. We also have access to a guest network, that interestingly does not require a proxy connection to the outside world, and that works perfectly fine!
Still unanswered then, is what ports does this phone require that are being blocked by the proxy server?
I would also like to know the answer to this. I do not have access to another wifi server to test this. What is weird though is that my Sensation that I just got rid of had no issues with wifi calling on the same network, explain that!
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.
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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
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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
Hey guys am i the only one having issues with wifi, its so painfully slow takes forever to load a webpage forget about watching a video, and no its not my wifi because i have tried several different ones and its always the same slow speeds, ive gone over my data limit twice since i got the g4 because cant you wifi.
is their a fix for this iissue, love my g4 but seriously thinking about another device
bayniner said:
Hey guys am i the only one having issues with wifi, its so painfully slow takes forever to load a webpage forget about watching a video, and no its not my wifi because i have tried several different ones and its always the same slow speeds, ive gone over my data limit twice since i got the g4 because cant you wifi.
is their a fix for this iissue, love my g4 but seriously thinking about another device
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Click to collapse
Try the DNSet application - I had painful Comcast WiFi speeds, or lack thereof, and running this application before turning on WiFi solves the issue. Not sure if it's just me, but you should know that MMS doesn't work when the DNSet application is running.
What is stopping us from hardcoding DNS entries in the WLAN config now that we have root? Is this possible?
Icculus760 said:
Try the DNSet application - I had painful Comcast WiFi speeds, or lack thereof, and running this application before turning on WiFi solves the issue. Not sure if it's just me, but you should know that MMS doesn't work when the DNSet application is running.
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I looked at it, but the app needs to create a VPN to work, which is a whole other can of worms.
Do you have Comcast? I've learned that Comcast rolled out IPv6 out of nowhere, and many of its routers have issues with some phones (my gf's iphone included). I rooted my phone, disabled IPv6, and now I'm back to consistent 50-80Mbps download speeds on my phone.
Before, I would open up the Speedtest.net app, it would take a full minute or more to locate a server, and then the needle for the download speeds would constantly bounce between 0 and 50, sometimes with my phone prompting me that I lost my internet connection, asking if I would like to switch to data. Worth a shot! If you can't root, DNSet does this for you through the VPN, or you might be able to find a way to shut it off on your router.
I don't seem to have any issues with my phone picking up IPv6 over data or a few other routers, though, so I think this issue is more due to some bad firmware on certain modems.
Yes i do have comcast, their is many other cellphones in my house galaxy s5 ,s6, lg g3, iphone 6, none of them have problems but mine, how do i disable IPv6 once i have root
ryanpm40 said:
Do you have Comcast? I've learned that Comcast rolled out IPv6 out of nowhere, and many of its routers have issues with some phones (my gf's iphone included). I rooted my phone, disabled IPv6, and now I'm back to consistent 50-80Mbps download speeds on my phone.
Before, I would open up the Speedtest.net app, it would take a full minute or more to locate a server, and then the needle for the download speeds would constantly bounce between 0 and 50, sometimes with my phone prompting me that I lost my internet connection, asking if I would like to switch to data. Worth a shot! If you can't root, DNSet does this for you through the VPN, or you might be able to find a way to shut it off on your router.
I don't seem to have any issues with my phone picking up IPv6 over data or a few other routers, though, so I think this issue is more due to some bad firmware on certain modems.
Click to expand...
Click to collapse
From the G3 after the 5.0 update, the fix was to disable IPv6 as well. This isn't related to IPv6 though, as it only seems to effect the G3/G4. Also, Google "What is my IP" when on mobile data and you will likely have an IPv6 address from Verizon.
I don't know that it isn't related to ipv6; Samsung phones have similar issues and my girlfriend's iphone does as well. I don't think the problem is the protocol itself, but how certain modems (seemingly Comcast ones) incorrectly implement them in their firmware