[Q] Wifi with captive portal keeps getting disconnected after 4.3 update - Galaxy Note II Q&A, Help & Troubleshooting

So our guest wifi network in office requires you to press an I agree button before connecting you to internet, and once you agree you're supposed to be good for 7 days. So once you connect - it redirects your first connection to captive portal, but if you have already agreed recently, it redirects you again automatically to the original webpage you were trying to go to - seamless user experience.
Samsung (with their infinite wisdom) introduced a behaviour in 4.3 that if it senses a wifi captive portal (by detecting redirection or not getting 204 return code), it immediately disconnects from the AP, and waits for the user to sign in (says "sign in required"). So everyday once I walk in, I need to do a manual connect to the wifi AP.
Is there any way I can disable this behaviour of disconnecting from an AP if captive portal is detected? I understand it redirects, but that only the first time, and eventually loads the intended page without further manual intervention.

Did you find out anything about this? I would love to know how to get around this also
Sent from my SPH-L720 using Tapatalk

kousik said:
So our guest wifi network in office requires you to press an I agree button before connecting you to internet, and once you agree you're supposed to be good for 7 days. So once you connect - it redirects your first connection to captive portal, but if you have already agreed recently, it redirects you again automatically to the original webpage you were trying to go to - seamless user experience.
Samsung (with their infinite wisdom) introduced a behaviour in 4.3 that if it senses a wifi captive portal (by detecting redirection or not getting 204 return code), it immediately disconnects from the AP, and waits for the user to sign in (says "sign in required"). So everyday once I walk in, I need to do a manual connect to the wifi AP.
Is there any way I can disable this behaviour of disconnecting from an AP if captive portal is detected? I understand it redirects, but that only the first time, and eventually loads the intended page without further manual intervention.
Click to expand...
Click to collapse
I found a program in the market called Wifi Portal Connect that seems to be a workaround. Haven't had a chance to try it yet
Sent from my SPH-L720 using Tapatalk

artiemd said:
I found a program in the market called Wifi Portal Connect that seems to be a workaround. Haven't had a chance to try it yet
Click to expand...
Click to collapse
Not sure if that'd work, because the O/S itself will disconnect from the AP. Such apps come into play after that. There's another similar program Wifi Web Login which stopped working because of this bug -- they documented the issue here: http://wifiweblogin.syslynx.co.uk/2013/12/samsung-43-compatibility.html

kousik said:
Not sure if that'd work, because the O/S itself will disconnect from the AP. Such apps come into play after that. There's another similar program Wifi Web Login which stopped working because of this bug -- they documented the issue here: http://wifiweblogin.syslynx.co.uk/2013/12/samsung-43-compatibility.html
Click to expand...
Click to collapse
Actually I have been using Wifi Web Login for the past 1 or more years with great success so I am very sad that it is not working now. It is a great program.
The program that I referenced above does not do the same thing as Wifi Web Login(which I have installed). This program claims to detect the disconnection that Samsung is enforcing and forces it to reconnect, giving Wifi Web Login (or similar programs) programs time to work.
I am at work right now and it definitely is working--I have been connected to work wifi every time I checked and I have been already logged into the work system, so this program did allow Wifi Web Login to do its thing.
Unfortunately I think it drained my battery. so it might not be a viable option in reality.
I hope a fix for this program comes soon.

It looks like my battery problem wasn't due to the program Wifi Portal Connect. I'm using it in combination with Wifi Web Login and all is well.
Sent from my SPH-L720 using Tapatalk

Related

WiFi Problems With 2 Networks

Hi
I have a wifi AP at home, and one at work, Both use WPA-PSK with mac addy auth. SSID Visible cause sh1te WM2003SE OS cant cope with hidden SSID.
Get a whole load of oddities from the XDA IIs. Both SSID's and keys are listed in the wifi setup on the device. What I would expect is that if I switch the device on when I am within range of the AP @ work, it connects to it no fuss, likewise, when I drive home, switch XDA on it connects, no fuss, unfortunately this is not usually the case. The following are in order of likelyness to occur!
Problem 1
Sometimes I switch it on, and it sits there searching for eons, never finds AP. If I disable and then re-enable wifi on the XDA then it connects.
Problem 2
Sometimes, the XDA will tell me that its connected to my home network when I am at work - it isn't!
Problem 3
Sometimes I switch it on, it connects to the AP, but no net connectivity - looking. Using PPC Ipconfig, I see that device never managed to get an IP addy. Stop, start wifi problem resolves
Problem 3
Occasionally, the PPC forgets the shared secret, and I have to re-input it, start/stop wifi before it will connect to the AP
Problem 4
Sometimes, it just BLUNTLY REFUSES to connect to the AP if I do the above. In this case I try all the above with a soft reset as well. If that fails then I need remove all the wifi AP's, soft reset, wait (ages) for it to see a new AP, enter the PSK then it will connect.
It also struggles to connect to other APs (wifi hotspots). Things work a whole lot better when there is just one AP involved (i,e not work and home).
Prob 4 occurs once/week, prob 1 occurs every day, others somewhere between. All problems are of course COMPLETELY UNACCEPTABLE for a product that has been released to the consumer.
Nigel
Hello Veledron,
I've a similar problem: at our company WLAN is set up to reqire WPA and authentication with user certificates. Since it is not possible to import user certificates in Windows Mobile 2003 SE "out of the box" I found out how to do that - it is described here
http://www.jacco2.dds.nl/networking/crtimprt.html
a little bit difficould procedure, but it worked - I can see my personal company certificate in the private-certificate store of my MDAIII.
The problem is, that I can't get a connection. WLAN-Manager says "connected", but I can't receive an IP-address - and in the logs of our Cisco-APs I can't see anything from my PDA. What also is a little bit strange for me: the MDAIII does not remember the setting "authentication with certificates", it always switches to "authentication using PEAP"...
any idea?
thanks
Gerald
Hi Veledron & gekap
I too have similiar problem with my netgear router at home. It seems that everytime it connect to the network it will just keep scanning eventhough it prompt that it already connected. It been 2 days and still i cannot manage to connect
Hopefully there is a solution to this problem.
Regardz
shark
There is.... Turn off AP, or move device to location where it is out of range, remove all WiFi profiles from device, hard reset, turn on router. wait (ages) for device to realize that there is a wifi ap nearby, enter PSK, all is well.
There seems to be no pattern to the WiFi failures, I have to do the above maybe twice a week to get it to connect. When the device gets itsself into a poor state this is the only way.
You cant delete an active profile, and the profile list only appears when wifi is turned on (stupid!) hence the need to turn off the AP.
Nigel
Hi Guys,
I manage to solve my wifi problem,
i just add the XDA IIs mac address to my netgear router plus assigned a reserve ip address based on it mac address and was able to connect successfully with no problem. Hope this solution helps.
Regardz
Sharkz
Hi,
thanks for the tips, but all of them are not a solution for me. I do not have any problems connecting to WLANs using WEP or to unencrypted WLANs, but i guess that there are problems with WPA in the PDA2K. I think the guys of you who have succussful connected to a WLAN using WPA have done that using WPA-PSK, not WPA with TKIP as encryption-method and PEAP or certificates as authentication method over 802.1x.
In our company TKIP is mandatory, and it is necessary to use certificates for authentication - this can be done with either EAP-TLS (so called "smartcard or certificate" in the setup-menu of the PDA-2k) or using PEAP. I've troubleshooted this a lot, and I can't see any authentication packet coming to our Cisco-APs from the PDA2K using this methods (I've turned on advanced logging on the APs to see any little bit...).
I fear the worst, that the WLAN-driver of the PDA2K does not support TKIP! Of course WPA is supportet from Windows 2003 Mobile SE, but in my opinion that is not enough - the card driver down the OS must also support the whole WPA-Standard, and it seems to me that the PDA2K driver does only support WPA-PSK. I found an article which can be an explanation of the problem:
http://www.socketforum.com/topic.asp?TOPIC_ID=2924
So I've 2 questions to you:
.) which driver version is installed on your PDA2Ks? (you can find that in the registry under HKLM\SOFTWARE\Drivers\Wavedev - I've: Common: 0.04.01, Device: 1.06.01 GER, DriverVersion: 0.08.00, Patch: 1.00)
.) has anyone of you ever connected to a WLAN using WPA (not WPA-PSK!)?
thanks
Gerald

[Q] Google Now voice search firewall issue? [SOLVED]

If I try to use Google Now's voice search on the wifi at work, all I get after it listens to me speak is "Recognizing..." for about 5-10 seconds, then it just goes back to "Tap mic to start speaking." If I do this on cellular data, or my wifi at home, Google Now works fine, which makes me think this is a firewall issue at work. Anyone found any information yet for this new service yet about required ports or the like?
Cell reception is spotty in my building at work (that's why I use the wifi there), so I'd love to figure out the issue.
definitely a firewall issue
An update: I just put my GN on a subnet that has all ports open and Google Now's voice search worked fine. Put it back on the DHCP subnet, and were back to failure.
Anyone else seeing this?
more info
FYI: It's getting stuck on "Recognizing..." even though I have offline voice recognition installed. Obviously, searching won't work without internet access.
I ran into this too, on our work network (where we block almost everything). Works fine at home. Did some sniffing on our firewall and found that my phone was trying to connect to 74.125.142.192 (ie-in-f192.1e100.net - which is Google) on port 14259. I added a rule to our firewall to the connection and now Google Now works perfectly. I have nothing to confirm this is the exact IP and port it will always use, though. I'll keep testing it to see if it stops working.
Interestingly enough, when testing I found that if I left the phone on "Recognizing..." long enough, it eventually worked. I wasn't capturing packets at the time so I couldn't see how it did that.
I'll update if I find any new info...
628
Thanks! Opened that port and voila - voice search is fine now. Thanks!
Confirmed for me as well, and it took awhile and I needed to open up a few more ports.
Destination ports are 5228 and 14259, so I just put the whole range in.
5228:14259
Google server IP's are:
74.125.142.192
173.194.74.192
5228 is needed for push notifications from Google services. I think you could get away with only opening the two ports you mentioned. I do and everything seems to work.
Sent from my Galaxy Nexus using xda app-developers app
My firewall is blocking on port TCP 14259 to a slightly different IP address of 74.125.132.192 which resolves to wb-in-f192.1e100.net
I am accessing the service from the UK.
chugger93 said:
Confirmed for me as well, and it took awhile and I needed to open up a few more ports.
Destination ports are 5228 and 14259, so I just put the whole range in.
5228:14259
Google server IP's are:
74.125.142.192
173.194.74.192
Click to expand...
Click to collapse
Never ever create firewall rules for ip address ranges, unless those ranges are on a private network and you can guarantee exactly where they go. Google, like many major corporations, provides hosting services, and due to this, simply because an IP is registered to Google [or any other corporation], it does not mean it's actually Google who's using it.
The best practice is to allow host names only (urls) when creating firewall rules (most often by wildcard variables - i.e. the asterick * - https://*.googleapis.com for example). IP addresses are dynamically assigned, so just because a specific connection at a specific time resolves to 74.125.142.192 does not mean it will resolve to that IP tomorrow, let alone 10 minutes from now.

Swann Security Remote View, Home WiFi Works, Mobile Data Doesn't

Hello all!
Recently I've purchased the Swann DVR8-1425 security system.
I've been able to connect it to my home network successfully. I can remote view the cameras through my T999L (no root, completely stock) on WiFi through the SwannView app, but as soon as I put it into mobile data, it shows me a message of not being able to contact the server. I'm assuming if I were at someone elses house on their WiFi, it would be the same result. Same issue on my Dad's S2, rooted, running Infamous 3.0 in the T989 forums.
I've messed with most, if not all the settings I can possibly use with trial and error. When it comes down to it, obviously there's only the one setting that works with my WiFi (the given IP address from the DVR and a server port given: 9000) and it won't connect with mobile data whatsoever (2g, 4g, or LTE). I've tried using HTTP port 85 instead of the 9000, a preferred DNS server in place of the IP address, turning on and off UpNp (not really sure what that does). Absolutely nothing. Server connection fail each time when using mobile data.
I've disabled the firewall in hopes of it working, but I've had no luck. Haven't reset the router, assuming I just unplug and replug but other than that, I'm out of ideas. Not sure what else I can work on besides the firewall, if that even does anything.
The Swann software installed on my Mac does work, but haven't had a chance to test it somewhere other than my home network. It could work, but I wouldn't know at this point. Just more concentrated on the mobile data issue.
My knowledge is small when it comes to this networking stuff. Connecting to a WiFi hotspot is about as easy as it gets for me lol. I just got lucky with trial and error for setting it up with the home network. Just wondering if anyone has experience with this or ideas that may come to mind. At the worst, I won't be able to remote view anywhere other than using my wifi, but it will still record at least.
Thanks in advance!
MyanRagahis said:
The Swann software installed on my Mac does work, but haven't had a chance to test it somewhere other than my home network. It could work, but I wouldn't know at this point. Just more concentrated on the mobile data issue.
Click to expand...
Click to collapse
^^^^^
Seems to me you should test the remote connection elsewhere before you start troubleshooting a problem thst may not even exist. If its not configured correctly to do what you want, its not going to work across the internet which would include the mobile data.
Make sure you can access what you want remotely, then test over mobile data. Unless I read that wrong it doesn't sound to me like you've done this. You can test the mobile data connection all you want, but if its not working remotely by any other means you will be wasting your time. (Unless you got lucky and configured it correctly, but as you said, youre not very experienced with this).
Until you verify it does work remotely, there's no reason to assume its your phone or T-Mobile that is the problem.
Tbh, I'd assume first it was a router config on your side. (Unplugging it doesn't reset its settings, and even if it did it may not be configured as needed by default.)
You'd probably find better support by going to the equipment website and router website.
Sorry I don't have the answer your looking for, but hopefully ill get you in the right direction.
Sent from my SGH-T999 using xda premium
DocHoliday77 said:
^^^^^
Seems to me you should test the remote connection elsewhere before you start troubleshooting a problem thst may not even exist. If its not configured correctly to do what you want, its not going to work across the internet which would include the mobile data.
Make sure you can access what you want remotely, then test over mobile data. Unless I read that wrong it doesn't sound to me like you've done this. You can test the mobile data connection all you want, but if its not working remotely by any other means you will be wasting your time. (Unless you got lucky and configured it correctly, but as you said, youre not very experienced with this).
Until you verify it does work remotely, there's no reason to assume its your phone or T-Mobile that is the problem.
Tbh, I'd assume first it was a router config on your side. (Unplugging it doesn't reset its settings, and even if it did it may not be configured as needed by default.)
You'd probably find better support by going to the equipment website and router website.
Sorry I don't have the answer your looking for, but hopefully ill get you in the right direction.
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
After read this earlier, I facepalmed myself and went to go test this out. Drove over to Starbucks a few minutes ago, connected to their wifi through my phone and it didn't connect Hmm...definitely a router setting then. The dvr itself is connected to the router by an ethernet cable. Just a matter of figuring out how to configuring the router settings. Thanks!
Try bluestacks
Hey. I came across this page looking for a solution to a similar problem. My new swann system connects fine with my phone on Orange but wouldn't connect to my partners identical phone on Vodafone via mobile Internet. Both worked on wifi. I solved by asking Google for my ip address, then going onto the swannview link app, under my device is a button to edit, on the edit page where it has p2p if you tap the line it gives you another option to connect with ip, then enter your ip where it says host. Save details with icon in top right and log in. This solved my issue, hope it helps anyone with the same issue.
MyanRagahis said:
Hello all!
Recently I've purchased the Swann DVR8-1425 security system.
I've been able to connect it to my home network successfully. I can remote view the cameras through my T999L (no root, completely stock) on WiFi through the SwannView app, but as soon as I put it into mobile data, it shows me a message of not being able to contact the server. I'm assuming if I were at someone elses house on their WiFi, it would be the same result. Same issue on my Dad's S2, rooted, running Infamous 3.0 in the T989 forums.
I've messed with most, if not all the settings I can possibly use with trial and error. When it comes down to it, obviously there's only the one setting that works with my WiFi (the given IP address from the DVR and a server port given: 9000) and it won't connect with mobile data whatsoever (2g, 4g, or LTE). I've tried using HTTP port 85 instead of the 9000, a preferred DNS server in place of the IP address, turning on and off UpNp (not really sure what that does). Absolutely nothing. Server connection fail each time when using mobile data.
I've disabled the firewall in hopes of it working, but I've had no luck. Haven't reset the router, assuming I just unplug and replug but other than that, I'm out of ideas. Not sure what else I can work on besides the firewall, if that even does anything.
The Swann software installed on my Mac does work, but haven't had a chance to test it somewhere other than my home network. It could work, but I wouldn't know at this point. Just more concentrated on the mobile data issue.
My knowledge is small when it comes to this networking stuff. Connecting to a WiFi hotspot is about as easy as it gets for me lol. I just got lucky with trial and error for setting it up with the home network. Just wondering if anyone has experience with this or ideas that may come to mind. At the worst, I won't be able to remote view anywhere other than using my wifi, but it will still record at least.
Thanks in advance!
Click to expand...
Click to collapse
Fix
Hello..
I am also using Lorex wireless security camera for my home but till now I am not facing any issue because all configuration is performed by experts. But I have two fixes for your issue.
Either contact with Lorex Support Team for help or follow steps:
Check with your mobile data service provider to confirm if they allow streaming of constant information over their network.
Configure a lower substream video resolution in your DVR / NVR settings to reduce mobile data usage and increase your connection speed.
If you cannot connect to your cameras using an LTE or IPv6 connection, switch to a 3G connection.
If you are using a device ID through your mobile plan, set up a Dynamic Domain Name System (DDNS) to eliminate the need to pass through the Stratus / FLIR Cloud servers.
Hope it helps!

[Q] Networking issue in android 4.2.1 Galaxy Nexus

Hello,
i've come from this thread thread
I have a galaxy nexus running stock android 4.2.1 with a very peculiar problem. From time to time i have trouble accessing a certain website if i try from wifi or from mobile connection it doesn't matter. If i restart the device the website works without a problem. It was a very odd problem and kept bugging me so i tried to focus on finding the real cause. After a lot of try and error i managed to arrive at this situation:
I have at my disposal 3 different wifi networks (lets call the wifi-1,wifi-2,wifi-3) and mobile broadband connections.
after a reboot of the phone (just to have a clear state) if i connect to wifi-1,2 or mobile conn the website works OK. if i connecto to wifi-3 the site also works OK but then after i disconnect from wifi-3 and connect to any of the other wifi-1,wifi-2 or mobile conn it doesn't work anymore. If i connect to wifi-3 again it works fine on that network.
I've connected to the phone using connectbot and checked the ip address and different params. and i simply can't get a ping to that website. a similar website located in the same subnet but on a different IP still works.
So what could happen on the network layer on the phone to stop working the connection to a certain IP?
Where could i find some info about how to debug IP networking issues on android 4.2.x
PS: I control both the phone and the servers that i'm trying to reach and can't see any traffic coming from the phone on the server.
PS1: I couldn't reproduce the issue with android 4.2.2 only with 4.2.1 (i've also tested android 4.4.4 and couldn't reproduce) i've tested 2 different phones with 4.2.1 and the problem reproduces.
PS2: IPv6 is disabled on wifi networks
PS3: all networks use different ip address classes and the IP changes accordingly. i was able to reproduce the issue only with a specific website/ IP
I was hoping someone would have answered you here.
Let me ask you this. Can you do process of Elimination ?
Choose a different Web such as this site http://forum.xda-developers.com
Next Connect the phone to each network and the Data in turn. Each time, first wipe data to the Browser on your phone. Go to the website. See if it loads and interacts well. (Go to some forum or log in etc.)
Switch to the next network and repeat. Let me know how that goes.
Next find a computer and have it do the same thing with internet Explorer. Clear IE's cache data each time. See how that goes as well with this site as your test site.

Note 4 not connecting to Public Wifi...Help!

My brand new Note 4 has always worked flawlessly with my home route via wifi (the past month). However, once I try going to a public wifi hotspot, such as my local ymca, my Note 4 just keeps saying "obtaining ip address" and eventually ends up saying "failed to obtain ip address" or "avoided poor internet connection". Also, after entering in a password on a wifi network at work, it will say saved, secured but drops the wifi as soon as i attempt to you use the internet...
I have been to a few hotels where I was able to connect to there free wifi after entering a password. I have researched this problem as being linked to android devices. There are some tips or workarounds that I've found that may or may not work for me but here they are:
1) Set frequency band to 2.4ghz only
2) Set to static ip
3) Turn airplane mode on, then back off
4) Do a factory reset on the phone
Before I attempt all of these options at my local Ymca, I would like some feedback from others. Has anyone came up with a sure fire fix for this issue on android devices? Any other tips or suggestions?
Thanks to all !
Alot of times public Wifi will have you "sign" an agreement. Open your web browser and refresh a page and alot of times it will have an agreement you have to click "I agree" and then put a continue button and it will go from there. Biolife, McDonalds, and Woods Coffee all have this. Its a bit weird if you have never done it before but it will make sense. Hope it helped.

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