Intranet access not working if mobile data enabled? - Networking

Hi all,
When connected to a WiFi network (isolated intranet, no internet access), Android seems to assume it's useless, and directs all data through the 3G/4G network.
For example:
- 3G/4G mobile data enabled.
- WiFi enabled, connected to intranet and is allocated a 192.168.4.xxx address.
- Android detects WiFi connection has no internet access, so i get the WiFi logo with the X through it, and a notification saying so.
- I open the web browser on the phone, try to connect to http://192.168.4.1, which times out as Android is trying to connect to that site via the mobile network.
- So I disable mobile data.
- Now when I open the web browser on the phone, try to connect to http://192.168.4.1, the site loads as it should.
It appears Android is trying to be too smart for its own good, and just completely disregards the WiFi connection if internet access isn't present.
Does anyone know how to fix this so it follows normal packet routing rules?
Thanks.

MWPau said:
Hi all,
When connected to a WiFi network (isolated intranet, no internet access), Android seems to assume it's useless, and directs all data through the 3G/4G network.
For example:
- 3G/4G mobile data enabled.
- WiFi enabled, connected to intranet and is allocated a 192.168.4.xxx address.
- Android detects WiFi connection has no internet access, so i get the WiFi logo with the X through it, and a notification saying so.
- I open the web browser on the phone, try to connect to http://192.168.4.1, which times out as Android is trying to connect to that site via the mobile network.
- So I disable mobile data.
- Now when I open the web browser on the phone, try to connect to http://192.168.4.1, the site loads as it should.
It appears Android is trying to be too smart for its own good, and just completely disregards the WiFi connection if internet access isn't present.
Does anyone know how to fix this so it follows normal packet routing rules?
Thanks.
Click to expand...
Click to collapse
Hello
When you have activated the mobile data and you are on a intranet Android it´s smart and connect you to internet. I know that it a very boring thing but is an system specification. I´m a IT admin an on my enterprise occurs the same. The only possible solution is to shut down mobile data if it not neccesary and connect to the intranet both things are not possible.
Best Regards

Related

Basic query - wireless internet settings 02 Atom

Apologies but I am verynew to the Atom and networking. Could somebody please assist with a simple to follow list of steps for me to connect to the internet at an internet cafe. I turn on the wifi and it will generally stay on for a short time but when I try to use internet explorer to get to gmail (or any other site) it comes back with a message that the connection was lost. I know there was no problem with the wireless connection in the cafe as my pc was downloading at the time. many thanks
Hi,
First of all, are you able to connect to the Internet from your device at home?
....or is it the case that you don't have an access point at home and simply want to connect to the Internet from an Internet cafe or WiFi hotspot?
Generally, if you have correctly configured (set-up) your Atom correctly, to connect, using WiFi, that setup should still work outside of your home, assuming you have a free WiFi hotspot. The only difference being that this time, it is not using your own access point. All you need to do is simply to connect (as you were doing).
The same goes with an Internet cafe, as long as the routers in the Internet cafe are setup to allow connectivity from un-named devices (such as your Atom), in adition to connectivity from their own specific computers (hence you were able to download, using the computers at the Internet Cafe).
The keyword here is OPEN - be it at an Internet cafe, WiFi hotspot or whatever. It's got to be open (and free), before you can connect and surf the Internet, like you were trying to do.
Failing that, you'll have to subscribe to the service provider before you can use their WiFi hotspot (e.g. at an Internet cafe, Macdonald's, hotel, airport) or any other public place.
Your device should be able to see all nearby networks. It should also indicate the strength of the signal according to the number of bars next to the network. Additionally, it will show, by way of a padlock, that it is a secure network. No padlock means it is an open one.
If there are open networks within your vicinity that do not require authentication, with a strong signal, then all you need to do is to click connect and you're on - away and surfing.
However, if the signal is weak, (assuming that it does not require authentication), then, you simply would not be able to connect to that network.
Try and figure out from here, as to why you weren't able to connect at the Internet Cafe.
Hope this helps.
kiwi992.

VPN Problem

dears
my phone is Magic 32b with st0kes-v1.4 Rom (http:**forum.xda-developers.com/showthread.php?t=624411).
in my country the market is not accessible so i tray to go throw PPTP VPN and its connected and the market is accessible for 2 second then connection blocked , even Internet browsing while the VPN is still connected when i disconnect the VPN the browsing is back. even more i made an add-hoc connection to my laptop and connect share the Internet from the laptop (the laptop connected to VPN) and still the same; i changed the ROM, nothing happened; any body have isolation.
3 days; no answer or comment ?????? ):
Does the VPn connection you are connecting to allow access to the internet without a proxy? If not, you are not getting to the internet from your phone ever.
the connection i used is HSPDA form the mobile oprater and also i trayed to use a wifi connction in the office and both are allawing connecting to the internet without proxy and as i sid when the VPN is connected the market is accessible for 2 second wich allaw me to enter for example entertarment section then connection blocked.

[Q] Wi-Fi connection problem.

Here's the problem.
When I try to connect to my University's network , the Galaxy S is able to connect JUST fine. However, when I open a browser it says the incoming certificate is not secure and then I have NO INTERNET on any page.
What the network is supposed to do is redirect me to the login page so that I can register the device to the network. My phone can't do that apparently and just sits connected to the network with NO INTERNET connectivity. How can I fix the problem?
This is the university network and the instructions how to get on it for Android devices:
http://www.colorado.edu/its/docs/wireless/androidwireless.html
I connect to it just fine but am UNABLE to get to that device registration/login page.
This is NOT just for my university. ANY public network which requires me to accept an "agreement" before it lets me have internet access, my phone KILLS ITSELF and CANNOT pull up the agreement page but instead tells me there is no internet. I'm SURE its a software problem or something with settings but can't figure out just what it is. Help?
Just about the only networks I can connect to on Wi-Fi are home networks. It SUCKS.

WIFI & Mobile Data Simultaneously?

Hi, New poster so if I've posted in the wrong area please don't bite
I've been connecting my phone to a smart device (miracast-ing 'direct') but as of late the connection has become unstable and generally unusable. I had the brainstorm of using an old router to stabilize the connection, this seems to have done the trick but now I'm unable to access the mobile data as WIFI has assumed priority. Please bear in mind I don't have home internet so the router is being used solely as a go between for phone and smart device. Is there any possibility of WiFi connection whilst have access to mobile data or is this just a pipedream?
Thanks in advance
You can just start a wifi network from your phone, connect the smart devices to your phones wifi and use mobile data normal as internet connection (this is standard if you start a wifi network from phone). You wouldnt even need the router with this szenario, if the wifi signal of your phone isnt strong enough you can connect your router to the phone and extend the wifi with the router.
saturday_night said:
You can just start a wifi network from your phone, connect the smart devices to your phones wifi and use mobile data normal as internet connection (this is standard if you start a wifi network from phone). You wouldnt even need the router with this szenario, if the wifi signal of your phone isnt strong enough you can connect your router to the phone and extend the wifi with the router.
Click to expand...
Click to collapse
Thanks for the reply
But creating a mobile hotspot won't help because it doesn't solve the faulty (actually non-existent) miracast connection, plus I don't need a hotspot because only the phone needs internet access. My earlier explanation was probably a bit vague.
My goal is to mirror my phone's screen but to also have internet access solely on my phone.
Phone➡Smart Device➡Display - Can't connect (used to work faultless).
Phone➡Router➡Smart Device➡Display - Connects but no mobile data available because the phone thinks the router has internet access covered.
Dowtish said:
Thanks for the reply
But creating a mobile hotspot won't help because it doesn't solve the faulty (actually non-existent) miracast connection, plus I don't need a hotspot because only the phone needs internet access. My earlier explanation was probably a bit vague.
My goal is to mirror my phone's screen but to also have internet access solely on my phone.
Phone➡Smart Device➡Display - Can't connect (used to work faultless).
Phone➡Router➡Smart Device➡Display - Connects but no mobile data available because the phone thinks the router has internet access covered.
Click to expand...
Click to collapse
Creating a hotspot is not for giving the other devices in your network internet access, this is the only way you can use the wifi on your phone with using mobile data at the same time. I dont know why but android devices never use mobile data when they are connected to a wifi network and there is no internet access available. So if you configure your router as a wifi repeater and setup the phone as base station, your wifi signal from phone to router should be good and you can connect your other devices to the router, the phone should see all devices in the same network if you stop the dhcp server in your router and only use the one from your phones hotspot. Should look like this :
Phone (with DHCP) <----Router---->Smart Device---> Display
saturday_night said:
Creating a hotspot is not for giving the other devices in your network internet access, this is the only way you can use the wifi on your phone with using mobile data at the same time. I dont know why but android devices never use mobile data when they are connected to a wifi network and there is no internet access available. So if you configure your router as a wifi repeater and setup the phone as base station, your wifi signal from phone to router should be good and you can connect your other devices to the router, the phone should see all devices in the same network if you stop the dhcp server in your router and only use the one from your phones hotspot. Should look like this :
Phone (with DHCP) <----Router---->Smart Device---> Display
Click to expand...
Click to collapse
Cheers will try it out.
Hopefully that sort of config is available on my router as it is loaded with a custom firmware from my old ISP provider.
Thanks
saturday_night said:
Creating a hotspot is not for giving the other devices in your network internet access, this is the only way you can use the wifi on your phone with using mobile data at the same time. I dont know why but android devices never use mobile data when they are connected to a wifi network and there is no internet access available. So if you configure your router as a wifi repeater and setup the phone as base station, your wifi signal from phone to router should be good and you can connect your other devices to the router, the phone should see all devices in the same network if you stop the dhcp server in your router and only use the one from your phones hotspot. Should look like this :
Phone (with DHCP) <----Router---->Smart Device---> Display
Click to expand...
Click to collapse
Router ISP custom firmware seems restrictive (no advanced wireless settings) plus WDS is not officially supported.
Possibly achievable but beyond my technical savvy
Thanks for the advice anyways.
Dowtish said:
Hi, New poster so if I've posted in the wrong area please don't bite
I've been connecting my phone to a smart device (miracast-ing 'direct') but as of late the connection has become unstable and generally unusable. I had the brainstorm of using an old router to stabilize the connection, this seems to have done the trick but now I'm unable to access the mobile data as WIFI has assumed priority. Please bear in mind I don't have home internet so the router is being used solely as a go between for phone and smart device. Is there any possibility of WiFi connection whilst have access to mobile data or is this just a pipedream?
Thanks in advance
Click to expand...
Click to collapse
Do not use WiFi 5Gz , use only 2,4Gz, and wifi 5Gz off for router and smartphone

Internet while connected to local WiFi

Samsung allows a phone to use it's mobile network to connect to the internet while it is also connected to a non-internet wifi connection. That doesn't seem to work with my OP 8 Pro. I contacted their support and they told me to try Dev Options and turn on Mobile Data Always Active and Aggressive Handoff.
I turned on Mobile Data, but the other setting does not exist (I've got 11.0.5.5). Replies to their support have gone unanswered.
When I connect to a local WiFi device (without internet) the phone will popup a notification informing me that it does not have internet connectivity and allow me to choose if I want to stay connected or not. If I say no, it drops the connection. If I say yes, I stay connected to the local WiFi, but cannot access the internet (mobile data is on and has signal).
I'm not sure why this is so hard.
Has anyone figured a way around this there are lots of times when it's necessary to be connected to both especially with devices like marine navigation systems.

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