WM6 related internet problems with T-Mobile - 8525, TyTN, MDA Vario II, JasJam ROM Development

After upgrading from my XDA IIs to my new 8525 I immediately flashed the Schaps 3.54b WM6 ROM. After setting up the connection settings just as I had had them on my BA I noticed the internet didn't work. I thought it might be a T-Mobile issue since with the T-MobileWeb service you must use the proxy server to route HTTP traffic. I put my SIM back into my BA and the internet works! Next my thoughts are that this being a new Edge capable device that they could detect this and block service. Well just today I flashed the Dopod Lite rom, internet still broke. But then I flashed Black X b2 and low and behold its working! I did think that the Dopod Lite "6mb PP" was a bit faster than black so I'd like to use it but why won't the net work on those two roms? Any ideas?

I Got near same Problem,
I was a Happy user with an old WM5 Black Rom. I checked the forums and found a discussion About a WM6 Black od Schnap's Rom. Schnap's in is favour. I tried the 3.54b Full Rom and wasn;t able to connect to the T-Mobile atenna. I kept on searching, when i changed to Manual Network selection I was able to connect.
When I tried GPRS it worked, when i went outside to get 3G you see the switch of reception from G to 3G in the Topbar, butt when trying to surf it doesn't work. Looks like some kind of block or setting.
I also tried 3.57a Full Rom it will connect butt then again no Data is comming in the Browser Windows. When i Switch to GPRS only it works.. I was ble to use the automatec network selection.
Very Strange and annoying...
Regards Tom

fyi...T-Mobile USA has no 3G; only EDGE access. They told me they plan on having 3G later this year and they are testing it. My EDGE gprs internet access works great with schaps 3.54c.

When trying another SIM from KPN I have no problems.
It's strange, i flashed to another ROM 3.54c from Schap's again I ran into trouble. When i poppe in a SIM from another provider KPN, it worked inmediately. This KPN provider has gprs / umts and hsdpa.. You see the icon performing seamless handover for the data connection. When creating traffic if switches to hsdpa and when there is no or less traffic it goed back to UMTS, you see the icon switcing between 3G and H.
When putting back the T-Mobile SIM i have trouble connecting with the GSM antenna's you see the Antenna symbol seraching. Normally it fixes to the provider within 3-10 seconds. T-mobile only has GPRS and UMTS, also my UMTS subscription is trothled down to max 224 kb/sec (This is cheaper for monthly costs). Maybe the trotheling is the problem?
When it does connect sometimes, after driving to my home or after several warm resets it's hard to connect to 3G. My work is situated in a building which has coated windows. So inside the building I only have GPRS reception. GPRS is no problem, when i walk outside, it switches to 3G (UMTS) allmost instantly except there is no data connection handover. I'm unable to get any bit from the 3G connection. It appears to be a solid connection because you see the solid 3G above the reception indicators.
Puting back the KPN sim and everything works as it should.
Regards Tom

Related

HSDA <-> UMTS automated switching?

I've seen in my TyTN, WM6, radio 1.34 a (strange?) behaviour. I noticed with VODAFONE : I have a plain UMTS connection 3g icon and 3g data connection alive, used for push e-mail.
When I am in HSDPA area and data connection starts data transfer, I see a switch between 3G and H connection, then revert after 1-2 seconds ad the end of data transver back in UMTS mode.
Hypotesis:
1) Could be a simple WM6 LVSW edition bug
2) Could be a WM6 feature (HSDPA has well known problems in voice phone avaliability when active)
3) Could be a Vodafone Network feature, HSDPA onli when needed
4) 1.34 radio compatibility problem/feature?
5) ......
6) I am stupid and this is a well known fact
Question:
Any other wm6 user noticed same behaviour?
It has always worked like this, HSDPA is ON when you need it, not all the time.
thats part of the design, saving resources for the network.
elivne said:
It has always worked like this, HSDPA is ON when you need it, not all the time.
thats part of the design, saving resources for the network.
Click to expand...
Click to collapse
This isn't working this way for all mobile phone providers in Italy, with TIM if you are in HSDPA area it will stay connected... and you're off-line if someone calls
May be we discovered why isn't enabled as DEFAULT setting and we need to enable using SetHSDPA.exe
sergiopi said:
This isn't working this way for all mobile phone providers in Italy, with TIM if you are in HSDPA area it will stay connected... and you're off-line if someone calls
May be we discovered why isn't enabled as DEFAULT setting and we need to enable using SetHSDPA.exe
Click to expand...
Click to collapse
Ditto in Australia. If im connected to GPRS, the icon is permanently showing HSDPA... unless of course i only have GSM coverage (very rare!!).
In Taipei, it works exactly as elivne says... H only when needed.
Cheers
FWIW, I didn't experience proper "throttling" in and out of HSDPA mode until I upgraded to WM6 and radio 1.38 (not sure which to thank for it). Prior to that whenever I was in H coverage, the radio would run almost exclusively in H mode. Talk about battery drain! Currently I can run for almost 2 days between charges (and that's with push mail).
How a particular combination performs for you must depend a lot on the carrier, your locale, etc. Took a lot of "trial and error" for me.
Yep, I'm on UK T-Mobile, and my icon only switches from "3G" to "H" when it's active.
As vp3G says, it noticably saves battery power from the old "permanent HSDPA" behaviour. Although I can't claim to get 2 days usage out of mine.
It is a network feature. If you are inactive on HSDPA for t sec the network will downswitch you to UMTS ( called R99 ). Only 10 users can use the HSDPA at the same time and there is an inactivity timer ( t=10 sec) try to manage the traffic by moving inactive users to R99 ( max speed 384 kbps)
Thank you for sharing your knowlege Austin Boy....
..."and that's the way it is"
Cheers
austin_boy said:
Only 10 users can use the HSDPA at the same time and there is an inactivity timer ( t=10 sec) try to manage the traffic by moving inactive users to R99 ( max speed 384 kbps)
Click to expand...
Click to collapse
Really only 10 simultaneous users? Seems like the odds of getting a timeslice when you need it would be virtually nil.
The 10 limitation can be increased by any operator by adding Channel elements (Radios) or more when adding another carrier ( frequency). Europe has more spectrum than the US and it is possible to get two carriers ( 2x5MHz) and use one for speech and the other for data. In the US we are sharing the spectrum between GSM and UMTS. AT&T will be migrating GSM to UMTS gradually and using the 850 band for UMTS before moving to LTE (4G)
sub69 said:
Yep, I'm on UK T-Mobile, and my icon only switches from "3G" to "H" when it's active.
As vp3G says, it noticably saves battery power from the old "permanent HSDPA" behaviour. Although I can't claim to get 2 days usage out of mine.
Click to expand...
Click to collapse
I have a similar switching scenario.
Prior to flashing my Radio to 1.38.00.10 and ROM to Black 2.0 I tested my download speed at www.dslreports/mspeed and was please to see I got almost a 1Mb/sec rating.
However since the flashes I have re-tested and am now only getting 250-300 kb/sec. It may be the network, so I will try on a few separate occasions and different locations.
NB. I have enabled HSDPA in HTweaksC
I noticed during the test that the download bar jumps staright up immediately but then slows down quite a lot?
sergiopi said:
I've seen in my TyTN, WM6, radio 1.34 a (strange?) behaviour. I noticed with VODAFONE : I have a plain UMTS connection 3g icon and 3g data connection alive, used for push e-mail.
When I am in HSDPA area and data connection starts data transfer, I see a switch between 3G and H connection, then revert after 1-2 seconds ad the end of data transver back in UMTS mode.
Click to expand...
Click to collapse
3 ITA is working same way.
Enabling HSDPA only when there is data transfer active.
Okay tried again on my commute home, and also when I got to my house.
Speed is looking good ! getting up above the 1mb/sec rate again.
Must have just been a busy cell/network
ok... i have a spv m3100 with black 3.0.1 wich is suposed to be HSDPA enabled... i have also enabled it in the tweaker.... today for the first time i have seen the icon H... in my area there is no HSDPA coverege... none... but i read today that untill the end of the year they are trying to cover it... and i was thinking that they are already making tests... i tested my speed at http://www.bandwidthplace.com/speedtest/ and i had a 145 kilobits per second speed... wich as far as i know it is similar to 3g... i disabled the HSDPA and tried a few times in 3g... the speed was 135 kb/s... to small the difference...
so... my question... what is the tweaker doing?... enableing HSDPA or just replacing the 3g icon with the H icon?
no one???
what is the tweaker doing?... enable HSDPA or just replacing the 3g icon with the H icon?

cingular 3g problem

i bet that this has been answered thousands of times and i probably haven't just found the thread but i have a cingular 8525 and i upgraded to wm6 lvsw it great but i cant seem to get the 3g network back and all i get is that big E for edge and i want to get back on the 3g network i have applied all the cingular setting cabs in the wiki but if any of you guys can help id appreciate it and sorry if this isn't in the right place thanx guys
The settings for 3g are the same as the settings for gprs/edge.
Maybe you need to go into settings->phone->band and make sure your network type is auto or (wcdma) and your GSM/UTMS band is set at GSM(1900+850)=UTMS(1900+850)....
I ran into the same problem numerous times. there also seems to be a few issues with the data connection. I don't know if it is the ROM or radio but it is pretty anoying.
Another issue I have been experiencing is the weird behavior I get sometimes when I receive a phone call. twice it frooze on me and I ended up missing an important call. I am thinking about going back to some of the other roms.
I have the same problem running the Black 3.1 and end up with "E" EDGE" connection most of the time instead of "3G" that I got with the Black 2.5 and the Custals new Rom. Your phone or device will connect with the fastest technology that it supports and that the network supports in that area. If you have an HSDPA phone or PDA, you will automatically get HSDPA (or UMTS) or fall back to EDGE (or GPRS) if the signal or network can support.
3G and 2.5G are interchangeable
2.5G = GPRS and EDGE
3G = UMTS and HSDPA

Swedish Network problems

I´ve experienced problem when loosing connection to 3G Network. When I loose the connection it will not connect again. Many times I´ve been forced to softreset the device to be able to get signal again.
I have tried different radio versions.
Perhaps this is due to local network comviq. Im not sure.
Anyone got a clue how to solve this?
Im using a Vario II with Black Shadow and radio 1.41 on Comviq, everything works like a charm. Might depend on where you are? I've had some connection problems in the UK (mainly crashes when the phone switches between 2G and 3G) but nothing at all in Sweden.

Problem with WM6 (Official) and radio 1.43

Hi,
I am using a T-mobile vario 2 in the UK. I recently flashed the radio rom to version 1.43 and replaced the operator rom with the official dopod wm6 rom. Most things are working ok but I have run into a few problems; hopefully someone here can help me.
First (minor) problem when the phone is first turned on it asks you to select a country. UK is not on the list, only countries in south pacific area. Does this prevent me from connecting properly to my local provider? ie do I show up as roaming?
Next problem is that I can't receive my voicemail. I phoned T-Mobile to check the number and setup etc but everything is correct. The phone just tells me "The number you have dialed is not recognised" or something to that effect.
Finally my phone frequently looses its data connection. When you open internet explorer a popup message shows saying: "Unable to connect to network for an unknown reason..." I checked all of the settings and they are ok. The only thing that fixes the data connection is to reset the phone. Probably I am also dropping calls whilst the phone is in this state.
So can anyone help? I think it is most likely the radio rom at fault but it could be related to not being able to select the correct county.
Thanks for your help
Matt
-Matt- said:
Hi,
I am using a T-mobile vario 2 in the UK. I recently flashed the radio rom to version 1.43 and replaced the operator rom with the official dopod wm6 rom. Most things are working ok but I have run into a few problems; hopefully someone here can help me.
First (minor) problem when the phone is first turned on it asks you to select a country. UK is not on the list, only countries in south pacific area. Does this prevent me from connecting properly to my local provider? ie do I show up as roaming?
Next problem is that I can't receive my voicemail. I phoned T-Mobile to check the number and setup etc but everything is correct. The phone just tells me "The number you have dialed is not recognised" or something to that effect.
Finally my phone frequently looses its data connection. When you open internet explorer a popup message shows saying: "Unable to connect to network for an unknown reason..." I checked all of the settings and they are ok. The only thing that fixes the data connection is to reset the phone. Probably I am also dropping calls whilst the phone is in this state.
So can anyone help? I think it is most likely the radio rom at fault but it could be related to not being able to select the correct county.
Thanks for your help
Matt
Click to expand...
Click to collapse
try radio 1.47 which comes with the dopod wm6
Ok I followed the suggestion and have upgraded to radio 1.47 but I still get the same problems. At least I have only checked the voicemail so far but get the same message. It actually says "You have dialed an incorrect number..."
Any other suggestions?
Download and install the provider Cab settings for your provider.
Search the wiki for more information
I have already done this. The settings are correct.
Hmm, thanks for the advice... now sms doesn't work either. PS. whilst flashing radio rom I also changed to JJ's black satin.
Please can somebody suggest a radio rom that is known to work well on T-Mobile in the UK. ie. no dropped calls, GPRS, 3G and HSDPA all working, voicmail and sms working, I don't care about video calling.
Thanks
Matt
Mat,
I am on TyTn and I had the same problem after installing Dopod WM6 version + 1.47 radio - on the second day majority of programs requiring internet connection were returning in message 'Unable to connect due to unknown reason...'. Even Wi-Fi was not responding. Only Resco Radio was working ?!?!
Solved this by removing the GRPS Internet settings and updating them manually.
As to the dropping calls, did you try to switch to GSM (instead of 3G). This is a common problem if your 3G covergae is bad?
Since upgrading the radio rom from 1.43 to 1.47 I have not had the "Unable to connect.. for an unknown reason" message. So I guess this was either due to some screwed up settings before, or some bug that has been fixed between releases.
I don't know how to switch from 3G to GSM but I am not convinced that this is the problem since my push email works just fine.
Incidentally I have noticed that my phone seems to default to 3G but as soon as I open a page in explorer it jumps into HSDPA, once it finishes it goes back to 3G. Is there a way to make it stay in HSDPA or is this a bad idea for some reason?
With the above observation in mind I could be wrong in thinking 3G was not my problem. Perhaps my phone jumps into HSDPA to receive push email.
So how do you force GSM or even GPRS over 3G?
Please forgive my ignorance.
Matt
Ok found a setting in com manager/phone/bands/ changed from auto which was putting me on umts to gsm. Was this what you meant? I have gone from 2 bars of 3G and 2 bars of HSDPA when in use to full bars of GPRS. Internet browsing was definitely faster with HSDPA but do you think I should be able to receive texts now? I know I have missed some and they still have not come through.
This is weird, after changing to GSM my htc home plugin reports 2 unread text messages but when I open up the SMS/MMS folder ther are no messages at all.
???
I find the best radio rom for Tmobile UK is 1.27 - see the wiki.
For your voicemail, set the phone to dial your own number, it works.
Ive tried all the new radios and always go back to 1.27. I am currently running Schaps lates WM6 rom (3.57a I think)
Rob
robt2379 said:
I find the best radio rom for Tmobile UK is 1.27 - see the wiki.
For your voicemail, set the phone to dial your own number, it works.
Ive tried all the new radios and always go back to 1.27. I am currently running Schaps lates WM6 rom (3.57a I think)
Rob
Click to expand...
Click to collapse
I must admitt Ive always end up going back to 1.27 too
Hi i'm on T-Mobile Uk Vario II currently using Black Satin & Radio 1.43 3g, hsdpa, sms, mms, voicemail all working.
Can only suggest reflash rom with somthing like Schaps 3.57a use his operator setting tool to set T-Mobile settings and use radio 1.43 and see what happens.
Cheers
It would appear that WM6 dialer strips the leading zero from the T-Mobile voicemail number +440507... giving +44507...
I have not figured out how to fix it yet.
For the voicemail thing, the dialer does indeed strip out the leading zero on the voicemail number - I spent hours trying to fix this and in the end, it was easy - just put an extra zero in the number (in network services) ;-)
I use Black Satin with Radio 1.47.00.10 and have no problems whatsoever but I'm still evaluating - I don't know if I've tried 1.27 yet so I think I'll look into that and report back the comparison.
You say you were having problems with data "unable to connect..." - I used to have this a lot and invariably, it was because my conection had somehow developed a proxy server - turned this off and it work after that (it usually happened after I synced it with my work computer)
Could the SMS messages be on your SIM or something? Not had this problem but have a look in SIM manager see if that can find anything.
The thing about HSDPA is that it isn't on all the time - the phone will stay in 3G until you or your phone initiates a data connection, then HSDPA will kick in for the duration of the connection then fall back to 3G - this is normal as your phone cannot receive calls and stuff while HSDPA is connected (I think - i'll look for clarification on this point - the phone will should drop the HSDPA when a call comes in).
Some people do report that data speeds etc seem faster when they mess with the band settings but I've not been able to confirm this and just leave it as it is.
If you don't get anywhere with your SMS problem, you could try the threaded apps that I've customised for t-mobile (links in my SIG) but be warned - any texts you have in your current SMS inbox will be inaccessible until you uninstall the threaded app. I'm using the WM6 one on mine at the moment and it works just fine for SMS and MMS.
Smiffy
Thanks for the replies guys!
I am now very happily running the 'normal' version of JJ's Black Satin rom and radio rom 1.48.
Everything seems to be working fine now. Adding the extra 0 into my voicemail number did the trick; so easy once you know how!
The data connection can still be slow occasionally. I think this is because if you have a weak 3G signal this overrides a stronger GPRS one. Sometimes the 3G signal is so weak it can't transfer any data and the phone just keeps trying in 3G rather than switching to the stronger GPRS signal which would work. This is easy the fix, just go into com manager and disable 3G (on the black satin rom at least).
Generally I am very happy and my device is finally working the way I wanted it to.
Once again, thanks for your help
Cheers
Matt
I use whats in my sig and it works well. I get the 3g/gprs battle at my house alot. Complain to tmobile regularly and they'll sort it out eventually.

Wifi or 3G connection, how to know?

I just learned the hard way that it appers that the Tytn with WM6 does not seem to automatically choose the wifi connection over the 3G data-connection. This is horrible!
I have the 3G data connection set to allways on and I thought when I connected to Wifi that would be the connection the system used, but no, just got a large 3G data-traffic bill.
It's so many things I can't belive that is so wrong with WM6, does the developers use this themselves?? So many things ar very unlogical and non user friendly that I think M$ should fire the people responsible for Windows Mobile.
Is there any hack to force wifi to be used when connected, or at least get some warning that 3G connection is used even though Wifi is activated? Seems crazy that I have to turn phone of to use wifi and not be charged 3G data traffic.
No one in 50 people finds this to be a problem, strange...
There's something called 'Comm Manager', and strangely there is a button for disconnecting the data connection, and by accident it won't reconnect if there's an active wifi connection... I wonder how did you come up whith the idea of soft-reseting your phone to disconnect the data connection..
jompao said:
I just learned the hard way that it appers that the Tytn with WM6 does not seem to automatically choose the wifi connection over the 3G data-connection. This is horrible!
I have the 3G data connection set to allways on and I thought when I connected to Wifi that would be the connection the system used, but no, just got a large 3G data-traffic bill.
It's so many things I can't belive that is so wrong with WM6, does the developers use this themselves?? So many things ar very unlogical and non user friendly that I think M$ should fire the people responsible for Windows Mobile.
Is there any hack to force wifi to be used when connected, or at least get some warning that 3G connection is used even though Wifi is activated? Seems crazy that I have to turn phone of to use wifi and not be charged 3G data traffic.
Click to expand...
Click to collapse
Hi, man.
I have notice that the metric for the WIfi connection is lower than the one for 3G or GPRS in the routing table.
Thats mean the default route go trought Wifi if this is availabe. The exception are some software that needs the 3G or GPRS connection like PushMail.
For example, if you connect your Wifi and open the PIE or Opera and surf the web, no GPRS/3G data is trasmitted, sure... you can see by yourself.
Live Messenger can works to chat over Wifi, but if detects GPRS 3G connection, use this connection (bad done by M$). Try unconfig the connections and connect to wifi, you will chat over wifi, but the email sync don't work...M$ have done bad choice IMO.
Regards.
jcespi2005 said:
Hi, man.
I have notice that the metric for the WIfi connection is lower than the one for 3G or GPRS in the routing table.
Thats mean the default route go trought Wifi if this is availabe. The exception are some software that needs the 3G or GPRS connection like PushMail.
For example, if you connect your Wifi and open the PIE or Opera and surf the web, no GPRS/3G data is trasmitted, sure... you can see by yourself.
Regards.
Click to expand...
Click to collapse
Well I did get 20 mb of 3G trafic in 2 days, days when I had wifi active and 3G-data connection. Only thing I used was IE and Newsbreak RSS aggregator. If I have connection ro my router over wifi, but what if connection to internet temporarily stops working, will WM6 then use the active 3G connection without any notification?
gnick666 said:
There's something called 'Comm Manager', and strangely there is a button for disconnecting the data connection, and by accident it won't reconnect if there's an active wifi connection... I wonder how did you come up whith the idea of soft-reseting your phone to disconnect the data connection..
Click to expand...
Click to collapse
Do you think I'm stupid or what? I haven't been softresetting anything.. There is no button for disconnecting data connection in standard Comm Manger. This is not the issue anyhow, issue is how stupid can an OS be that uses an active 3G data connection when there is a wifi connection available at the same time... And if the wifi connection isn't working it notifies the user of that fact and informs it will switch to 3G data connection.
In other words how can the user know what connection is used. Only safe way seem to be to turn phone off in Comm Manager, which I will do forward on.
A logical system like iPhone will connect to wifi when available by itself. And I'm quite sure user is somehow notified of this fact.
There was a button for it in the wm5 comm manager, and after the updated, I didn't notice any difference whith the wm6 one, but there's always the option to change it to the Kaiser's comm manager (just a cab install, nothing hard or threatening). The 10 button comm manger has the 'Data Connection' button and that's a fact, and it looks better too (in my oppinion).
Sorry about the soft resetting thing, I misunderstood it a bit
And about the issue of the 3G connection, there are some countries that don't have city wide open wifi networks (like mine), so the only place I can use it is at home (or some open wifi network on the street but that's quite unreliable). So our operators divised the 3G internet connection plan accordingly whith prepaid MB -s or GB -s. So in my case it realy doesn't matter which do I use. (ohh btw 200 MB costs us around 11 USD and 5 GB is around 28 USD)
In all honesty there are a number of different solutions. Comm Manager, the NoData App, BandSwitch or it cousin program could help you with that. There are tons of third party apps. Worse case scenario just kill the phone and switch to Fly-mode. I mean, dude when you are going to do something with your phone and you are afraid that it might cost you money then research first before using.
Thank God you only used 20megs. Here in Canada that stunt would have cost you almost $1000!!
agovinoveritas said:
In all honesty there are a number of different solutions. Comm Manager, the NoData App, BandSwitch or it cousin program could help you with that. There are tons of third party apps. Worse case scenario just kill the phone and switch to Fly-mode. I mean, dude when you are going to do something with your phone and you are afraid that it might cost you money then research first before using.
Thank God you only used 20megs. Here in Canada that stunt would have cost you almost $1000!!
Click to expand...
Click to collapse
Well I did test and then checked only to see if I was charged any traffic and I wasn't so I thought it was fine. Apparently the charge is a bit delayed.. Well it's no fortune here, a little more then 1 dollar per MB. Still would be nice to clearly see when wifi and 3G is used, I use wifi at work and at home and don't want to switch phone part off.
gnick666 said:
There was a button for it in the wm5 comm manager, and after the updated, I didn't notice any difference whith the wm6 one, but there's always the option to change it to the Kaiser's comm manager (just a cab install, nothing hard or threatening). The 10 button comm manger has the 'Data Connection' button and that's a fact, and it looks better too (in my oppinion).
Sorry about the soft resetting thing, I misunderstood it a bit
And about the issue of the 3G connection, there are some countries that don't have city wide open wifi networks (like mine), so the only place I can use it is at home (or some open wifi network on the street but that's quite unreliable). So our operators divised the 3G internet connection plan accordingly whith prepaid MB -s or GB -s. So in my case it realy doesn't matter which do I use. (ohh btw 200 MB costs us around 11 USD and 5 GB is around 28 USD)
Click to expand...
Click to collapse
I'm trying to keep a clean installation of the official Swedish rom, been having problems with wake up on notifications when using other comm manager and HTC Home plugin. Off course it's no major problem to go to flight mode, just weird that one even has to think about it on a modern os...
jompao said:
Well I did get 20 mb of 3G trafic in 2 days, days when I had wifi active and 3G-data connection. Only thing I used was IE and Newsbreak RSS aggregator. If I have connection ro my router over wifi, but what if connection to internet temporarily stops working, will WM6 then use the active 3G connection without any notification?
Click to expand...
Click to collapse
The only thing you can do to be sure only Wifi is ised is to select The Work Network in Connections, so no 3G connections to your operator is done....
If some app uses 3G before Wifi, the OS don't notify, how can the OS notify this? The OS have in the route table metric to use Wifi first, 3G after...
Regards.

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