Internet connection very slow! - Galaxy S II General

I and my father have a new SGS2. When I connect to Wifi, no problems at all. On BOTH, the internet connection is very slow, with stops and always changing H... 3G... H....... If I connect to my old phone, the speed is fine, so it's not the local provider. My SGS2 has a lot of apps in it, and my father's one is stock ready and new, but the problem is the same for both. Also it spends a lot of battery.
Some people are complaining about this problem, is there a solution?

Try disabling fast dormancy.

how do you disable fast dormancy?
cheers

Change network setting to gsm only mode if it still come you might consider to chanhe the sim card, like i plan to.
I also using this gt p1000 with different sim card and it happened more faster browsing rather than this dual core gt i9100
sent from my 2.3.3|dxjpe DJGTabs7

Probably due to the radio sucking. There are others you can flash to...not sure which is best.
Are you by chance on AT&T in the US? Anyone know of the best radio for this phone on AT&T?

I also get very slow internet comnection in areas where high speed UMTS is not available. Actually, in these areas the phone is so slow that it always looses communication with the server. Practically, internet does not work AT ALL!
I'm really tired of being regularly pissed off by this phone and its many defects!

UPDATE:
Just tried disabling fast dormancy by using the hidden service menu *#9900#
It looks like at least now commection works. Speed is not optimal but that may be normal because at the moment I am in an area not covered by H+ connection.
Sent from my GT-I9100 using XDA App

YET ANOTHER UPDATE: Forget what I just said in the post above. It only worked for a few minutes, and then I'm back with no connection. It looks like this phone is rather deaf to 3G networks. But again, I may be wrong. The thruth is that I am desperately struggling to make this bloody phone work, but so far I have no clues at all.
Sent from my GT-I9100 using XDA App

There have been random reports of regional and carrier specific problems with 2/3G. Some have been fixed with s/w updates, some people had to get rid of the phone. If your phone and your father's phone perform differently using the same SIM card, than his phone has a hardware problem. If they both suck, then you can either keep playing with the settings, hope a future s/w release fixes the problem, or get different phones.
The SGS2 appears to be router sensitive. It doesn't like D-Link routers. It appears to like Netgear routers a lot. While you shouldn't have to, changing your router can make a big difference in Wi-Fi performance.
Also, both of the conditions above wreak havoc on battery life. I can get 15 hours connected to my Netgear router while people with D-Link's are lucky to see 8.

I do have a second phone (my good old nokia n95 8GB), and also a second contract with the same carrier. I've already tried swapping the sim cards, and the result is always the same: N95 working flawlessly and SGS2 struggling even to get a reply from the server.
Obviously it's a problem related to the SGS2 (mine is unbranded and unrooted, just made the update to the latest firmware 2 months ago), and not to the carrier, although in this period I am in my parents' house, where signal is slightly lower than what I get in my house, at the opposite side of the city. So some cross relationship with signal strength may actually also be possible.
I do have Dlink routers both in my hose and in my parent's house, but I get very good wifi connection, I really can't complain about that. Also because my routers are different from the model that is known to cause problems. Anyway wifi connection is not in discussion here. It's cellular network connection that's problematic.
This evening, after disabling and reenabling all possible settings, and setting network connection to CDMA only, I was able to get fairly good connections, however we shouldn't be supposed to trickle anything in order to simply get cellular network data connection.
Sent from my GT-I9100 using XDA App

Related

gsm/3g problem - dealbreaker :(

This might force me to use samsungs dead-on-arrival-refund and switch to the both uglier and slower Desire Unless you have a solution.
The phone finds several networks where two are associated with my telecom-provider. One is old gsm and one is 3g/H. I search and manually picks out the 3g-network and gets an H-connection with 2 mbps (max for what I pay for). But this only lasts for about 10 - 20 seconds, then it falls back to the gsm-network.
So to speek, it overrides my manually selected network and uses an automatic pick and i get gsm with crappy 56 kbps.
I have done this:
1. a new sim-card (telecom sent me one)
2. Resetted the phone (samsung asked me to do this)
The problem is still there and samsung now say I should send it back to them...
But what are the odds that it will work on another device... the problem is probably a combination of phone + telenetwork. The simcard works perfectly in the same location on the Touch HD (blackstone) and the sales-dude that also claims to have an SGS with another network have no problems.
Swedish telecom-provider: TELE2
Help...! I dont wanna switch to a 9 month old desire and the desire hd looks like the specs are the same as sgs without the samoled and a too large 4,3" screen.
Have you asked the sales dude which firmware he is using? This sounds a bit software related. It can definitely be teleco, however I think you're paying a premium doing more than keeping up appearances should be important to them.
Sent from my SHW-M110S using XDA App
Did you try setting the phone on "WCDMA ONLY" in the network menu?
Every time the phone gets a stronger GSM signal, it will switch to gsm, just like any other phone.
Just disable GSM.
hmmm no i have not tried that... sounds quite promissing, but if it works that will result in no network at all if i go outside a 3g-area, right?
I have stock rom at eclair.xwjfb - i90000xxjf5
But where do i find this option? from a secret code?
in the network-menu i only have "use only 2g networks"
EDIT
Found this:
*#*#4636#*#* for battery and other general setttings like GSM/CDMA
Testing.....
EDIT
No change
I set it to WCDMA ONLY and tried all the other options as well. Most of them resulted in to network access.
###! this sounded so good
so all i have to do is type that number i get the option to only use 3G covarge right? is that how you did it?
Tackar!
yes but read it again - did NOT work
are you having the same problem with tele2?
Ah okey, such a shame. Nope, i'm using Halebop, but if you have this problem i might also experiance it aswell, hopefully not though..
But my phone had a really strange problem which caused me to send it back, it lost the signal completly, like i had no simcard in it. This could accur around 20min-4 hours, and i seem to be the only one affected by this.. really strange, hopefully i'll get my phone back soon without this problem, whatever it might be..
im returning it today as a d-o-a and will hopefully get a new one that works. Would really be a shame to let go of such a nice handset!
the wifi-radio cant stay connected to dynamic ips either, something that clearly works for others with sgs
Just replace it with another. I think your unit is defective.
There have been no reports of network problems with the SGS, and personally, i live in a place with terrible coverage, but when i set to WCDMA only it still somehow manages to maintain a good signal.
surely this could also be due to not all places being covered by 3g signal.
possibly but not likely sinse i can manually force it to use another network and then max out the payed bandwith of 2 mbps easily, but only for a very short period of time...
anyway, its sent away now. Hopefully they fix this fast

Network and GPS Functionality Vanished

Hi all,
I flashed my phone, and thought I’d go with Darky's Raw Steel Edition (4.1), which is awesome btw. I installed it correctly, installing I9000XWJM8 first (the MODEM and PDA, not CSC as none seemed to come in the package).
Everything was working smoothly until I realise 3G/Data Network is no longer working (it did previously). Not only that but it seems it won’t connect to my service provider (Three) at all (emergency calls only), and I’ve also now noticed GPS doesn’t seem to work at all, I can’t even get into GPS test mode. Wireless does however work though it being off, or on, has no impact.
I’ve tried:
Flashing different firmware - Stock JM8 and Doc Froyo’s latest JPO.
Hard Reset
Deleting and re-entering APN settings, though they were correct and already on the phone anyway.
Testing my SIM on another phone – signal is strong, inc. 3G on that.​
I’m really at a loss here. Any ideas anyone?
Thanks
UPDATE: So, I won't bump this myself, but incase anyone finds this thread in the future: the gprs, gps, 3g, etc all work - just not in my house, on the SGS, anymore. I have no idea why - my other phone, it's fine.. and it used to be fine with this phone too. I'll update again if I figure it out.
the other phone works fine with the same sim you are using in the SGS?
Yep, the same SIM works in my old Nokia 6600 fold, people in my house also with Three are getting solid reception right now. 4-5 bars with 3g established.
It worked beautifully all the way home from work on the bus, just not in/around my house.
It's as if the local cell towers near my house have blocked my SGS specifically (can't receive calls or texts either). I did turn the wireless on and off in short succession (which would cause the gprs/3g to try to re-establish each time).. maybe I flooded them and they blocked my IMEI? Or is that just a ridiculous idea?
The real odd thing is GPS not working either (again, just around my house/street); surely it doesn't need a cell site for that?
It does seem as if I can't download apps from The Market anymore either, and have tried various cache clearing solutions to fix it (problem occurred roughly when I noticed my reception was nill).
You might have a problem with the band selection thing of your phone.. have you tried downloading/speed test when you /do/ get a connection? If it seems capped at 40kbps, you might have the same problem I experienced before, of being stuck on 2g. (Despite settings saying otherwise).
I fixed it by doing the solution to having a missing 850 band, the thread of which is found somewhere in this forum.
Thanks. That sort of worked earlier.
It made a slow data connection, and some texts came through.
I then went out to a location a few miles away, had a look and it was still on a slow connection type for a few mins, then all of a sudden it went to HSPDA (with the occasional 3G flicker) and was blistering fast.
Now that I'm back home, I've lost all reception again and can't make/take calls
[EDIT] Clicking around my phone in the hopes of finding something: checked product code in my nv_data.bin file with SGS Toolbox, and it's showing I9000HKDKOR; whilst the backup is showing I9000HKDH3G - could I be on to something? I backed up my efs folder after rooting before doing anything else - so, going to try restoring that.
I have a hunch based on a 2 year old post (http://forum.xda-developers.com/showthread.php?t=445913).
From what I understand, Three UK piggy back on Orange's network when Three's 3G cell towers are out of reach. Orange don't provide Three users with the full service though, just 2G and I'm guessing they prioritise Orange customer traffic.
I think when I flashed my phone, I removed code commanding the phone to prefer Three cell towers. Without that code, the phone simply goes to the strongest/first signal it detects. I'm guessing in the area near where I live, it's Orange (or maybe any old network which is why I'm often getting Emergency Calls only).
This is all guesswork. I'm hopeful, seeing as if I quickly switch the SIM to my two+ year old phone, then I quickly get 5 bars and 3G.. unless the SGS's signal issues really are *that* bad.
http://forum.xda-developers.com/showthread.php?t=831022
Try see if you have the symptom of a missing band?
Hi Nwsk, I tried that before and assumed it didn't work, but actually the change isn't sticking. Which seems to be the case for a couple of others! Thanks for pointing me back to it!
[Edit]
Ohhhh dear. Now I have another theory (I really hope I'm wrong).
I've just read on a thread that some phones don't have the 850 Band, it's down to a lack of hardware support. I'd wager every Three UK branded phone sold will have the correct hardware as stock. I sent my phone back to Samsung for repair, they said they replaced the motherboard.. inference: they replaced it with one without the WCDMA 850 support.
Hmm, I'm definitely no authority on this, since I'm just guessing.. but I figure if that if was a true hardware defect, you wouldn't even be able to get it temporarily?
Are you using any 'battery-saving' type apps? Something might be messing up and keep reverting the settings. I had this occur to me a second time when I was trying out the superpower app here, I think it conflicted with another app I was using, and it borked out my network connectivity. Somehow fixed that after a few reboots, and lots of messing around in the phone debug menu with the 3g/2g thing, it suddenly worked again.
I've not seen it manage to get onto 850MHz WCDMA in my house for a while, not since the mobo got replaced (I should qualify that with a statement on my bad memory ). It will occasionally latch onto something if I walk around the house, giving me a slow data connection with the G symbol showing - it will drop pretty quickly.
Messing around while I write this, I've just realised if I set my phone to GSM(2G) with roaming [Three UK phones need this on so they can connect to Orange towers], then it does establish a data connection at 1800mhz. If I force WCDMA only, I get NOTHING. Setting both/auto leads to it being dodgy/instable, as I've discribed above.
My Nokia 6600 supports 850mhz UMTS, which would explain why it's working well inside my house.
I don't think it's an app. I've flashed a few different firmwares in an effort to get this fixed, it's currently on official Froyo JPO (not even rooted!) with Multi-CSC and a few completely harmless apps. I'd try the stock Three firmware if it was available somewhere.
I'm hoping it's software like you suggest! I will tinker away for now!
Thanks for all the help, at least now I'm fairly sure I'm on the right track!

Crazy crazy 3g...help me.

On my s2 when using 3g full bars I get no activity no internet whatsoever, this has been an issue from day one, using stock rom o2 or custom roms. Anybody getting the same problem? And is there a solution?
Ps but as soon as it switches to H, it works fine.
I was working today and using as a hotspot, and I was in area where it was just 3G, with full bars, and could not get on the net.
This is a bit of grrrrr moment. HTC desire no problem at all.
Anybody have any ideas?
have you altered any system settings? Try the SiM card from your HTC Desire.
Finally, try hard reset.
not altered anything . I used my virgin sim on desire and s2(same sim)
And how to hard reset on this thing?
Thanks for caring.
Here are the problems sorted by number of individual posts in descending order:
1) Battery
2) Wi-Fi
3) GPS
4) Sound
5) Camera
6) Screen
7) 2G/3G
While the 2G/3G problems people are experiencing are no doubt real, the magnitude is relatively low. People who changed carriers or used SIM cards from other carriers seemed to have had their problems go away. I know this isn't what you wanted to here but, compared to some of the other problems, this isn't a widespread issue and appears to be carrier/locale specific.
That is NORMAL it means you are in good area where it supports 3.5G / H
so when you use data it uses 3.5G and not 3G. It reverts back to 3G when you are not using the internet. Nothing crazy. It is normal. Search next time.
dk206
You are missing the point, in,certain areas where there is NO 3G+, ONLY 3G I get no internet, is this NORMAL too? Read first.
with all respect to all seniors, that is not a simple issue, basically there is no solution till now, some people working on replacements others waiting for cooked roms, i have this issue since two weeks now and i can assure you that a lot have the same issue, more didn't find out yet because simply the issue is unstable data connection which prevent you from using VOIP & Wifi hotspot, when ever the connection is turning from H+ to 3G it drops, anyways some links below having same issue:
http://forum.xda-developers.com/showthread.php?t=1073958&page=8
http://forum.xda-developers.com/showthread.php?t=1074396&page=3
http://forum.xda-developers.com/showthread.php?t=1088727
http://forum.xda-developers.com/showthread.php?t=1066710
a lot of people in MEA have this issue as well.
Hassanalaa said:
with all respect to all seniors, that is not a simple issue, basically there is no solution till now, some people working on replacements others waiting for cooked roms, i have this issue since two weeks now and i can assure you that a lot have the same issue, more didn't find out yet because simply the issue is unstable data connection which prevent you from using VOIP & Wifi hotspot, when ever the connection is turning from H+ to 3G it drops, anyways some links below having same issue:
http://forum.xda-developers.com/showthread.php?t=1073958&page=8
http://forum.xda-developers.com/showthread.php?t=1074396&page=3
http://forum.xda-developers.com/showthread.php?t=1088727
http://forum.xda-developers.com/showthread.php?t=1066710
a lot of people in MEA have this issue as well.
Click to expand...
Click to collapse
I just did some troubleshooting and found out using vodafon qatar sim solved the issue..on Qtel the problem persist.so for me i guess got to wait till SGS2 is launched in the middle east for samsung to update their firmware for carriers here.
Sent from my GT-I9100 using Tapatalk
I'm in Poland, one carrier's PREpaid didn't work, then another carrier's POSTpaid worked flawlessly, so I got that working carrier's PREpaid and after working initially it stopped now. My question is: do you think the 3g loss might be prepaid/postpaid issue?
Sent from my GT-I9100 using XDA App
I really doubt that it has to do with carriers, the phone's "3G" just doesnt work, it seems to want use HSDPA and up.
They really need to bring out a fix for this.
How long did they take to finally bring this phone out... Still no where near to getting it right. Shame, this could so easily be the best.
After being frustrated by no activity on 3G, I decided to try uskr's data fix. Although skeptical that it would fix anything, I tried it!
Amazingly enough, IT WORKED!
It really did, on one bar of pure 3G I get 0.3 down speed on speedtest on the phone and through hot spot.
The fix involves editing /system/build.prop
I add
ro.ril.enable.dtm=1
ro.ril.gprsclass=12
ro.ril.enable.3g.prefix=1
ro.ril.hsdpa.category=28
ro.ril.hsupa.category=9
ro.ril.hsxpa=3
To the bottom of the file using Root Explorer's text editor, on a rooted SG2.
Big ups to uskr

Nexus 4: radios behaving badly

The one thing that's keeping me from fully enjoying my new Nexus 4---hassles with radios, both wifi & cellular.
1) On my home wifi network on all devices except the Nexus 4 I see solid, constant download speeds of 25Mbps. My Nexus 4 consistently only gives me 4-6Mbps. If I disconnect/reconnect sometimes I can see speeds slightly higher than that, but only temporarily. This isn't generally a huge deal because 4-6Mbps is fast enough for most things on a phone, it just bugs me that every other device in the house gets 25Mbps.
2) Of bigger annoyance is my cellular data connection, it drops off multiple times per day. The cellular signal strength indicates full bars, along with the 'H' icon indicating I'm connected to T-Mobiles HSPA+ network. Voice still works fine but the data connection is dead--nothing will connect--Speedtest, maps, Google Search, Facebook, etc. This forces me to either turn on/off Airplane mode or reboot the phone completely to regain my cellular data connection. On my previous SGS2 I never experienced this issue. It drives me nuts to not be able to pull up a phone number, directions etc at the times I need it most.
Does anybody have any similar experiences or suggestions on how to remedy these issues?
Edit---FYI I'm fully stock but rooted. 4.2.1 update not yet applied.
1) Check APN settings and make sure your account is properly provisioned by calling T-Mo CSRs. I had a similar issue with my Nexus One back in the day that was fixed with a reboot after they reprovisioned my account.
2) Flash factory image, in case it was a bad flash of the radio. It happens.
3) If 1 & 2 fails, or you don't want to try #2, call the Nexus hotline and get yourself a replacement.
ATnTdude said:
1) Check APN settings and make sure your account is properly provisioned by calling T-Mo CSRs. I had a similar issue with my Nexus One back in the day that was fixed with a reboot after they reprovisioned my account.
2) Flash factory image, in case it was a bad flash of the radio. It happens.
3) If 1 & 2 fails, or you don't want to try #2, call the Nexus hotline and get yourself a replacement.
Click to expand...
Click to collapse
Called TMobile and had them reset my account, I'll keep an eye on it the next couple of days.
Right now I'm downloading a cached Google map via WiFi and it is slooooow.
I also notice on edge the signal is inconsistent.
Hi
The Wi-Fi issue is something happening to others, seems to be a driver bug.
http://code.google.com/p/android/issues/detail?id=40306
Regards
Phil
Wifi connectivity is my biggest gripe. I'll step 6 feet away from my router and I lose a bar. A couple rooms away I fluctuate between 1 and 0 bars.
Sent from my Nexus 4 using xda app-developers app
Did you ever find a cure for this? I am having the exact same issues on my O2UK Nexus 4, anytime I want to use the data connection its almost guaranteed not to work and involve reboots, Airplane mode on and off etc
Im having the same issues. My data just drops wifi and cellular. I dont get full signal wifi or cellular. I live in india and flashed the latest .54 which was released in india recently. I managed to at least get cellular data going but my strength still low and data drops still on both wifi and cellular. Its super frustrating. Any ideas?
try reflashing the OS on your phone and try changing the wifi channel on your router.
changing the channel on my wireless router really helped signal to all of my devices. there may be lots of interference on the channel you're on.
SeraldoBabalu said:
try reflashing the OS on your phone and try changing the wifi channel on your router.
changing the channel on my wireless router really helped signal to all of my devices. there may be lots of interference on the channel you're on.
Click to expand...
Click to collapse
I may reflash OS but i just got the phone today so ill slow down a bit. I flashed the radio one would think that would be enough? Anyway I have many other devices on my wifi without an issue and i used wifi analyser and theres no overlap with other routers and i experience this on 2g 3g and wifi so it looks like some modem problem. Unfortunately the phone was bought 3 months ago in the States and im here in india so im kind of stuck
There are known issues with the Nexus 4 wifi speeds slowing for no apparent reason. Also, known issues with the LOS (loss of signal). You can find information and bug reports on both of these issues.
ingenious247 said:
There are known issues with the Nexus 4 wifi speeds slowing for no apparent reason. Also, known issues with the LOS (loss of signal). You can find information and bug reports on both of these issues.
Click to expand...
Click to collapse
I dad see some threads reporting this issue. Unfortunately i dont see any solutions or resolved threads. Additionally people either have it they dont as i see it i cant see people witching sides. Its just a little frustrating. Any opinions on whether kernel swapping will help?
Did a full flash from scratch. No progress. Also i went to my friends place and signal was perfect for like 4 hrs straight but every other place ive been since has seen choppy signal.
nvillamob said:
Wifi connectivity is my biggest gripe. I'll step 6 feet away from my router and I lose a bar. A couple rooms away I fluctuate between 1 and 0 bars.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Pretty bad. I ran a test a few weeks ago and I can go up to 450 feet from my router (old Linksys) without a problem, and after that it gets iffy, and finally disconnects at 500 feet. I am seeing an average of 20 Mbps on wifi. Now if I can only get my cellular connection (non-wifi) to go faster than 1 Mpbs max I would have a usable phone.
I have a slightly diff issue.
If I reboot my phone, I connect to my router no problem. If I turn wifi off (to save battery) and then turn it back on.... it shows my AP's as out of range.... but I do see my neighbours AP's. I also have an N10 with has no issues at all with wifi (and none of my other divises have issues either).
When I bought the N4 they seemed to be having an issue with it when setting it up.... but I was not paying close attention. I am wondering if I have a bad phone on top of the "normal" wifi issues that other are experiencing.
Think I will revert back to stock and swap it for another phone to see if I can at least just turn off / on the wifi rather then reboot to connect (how sad is that?)
OldGaf said:
I have a slightly diff issue.
If I reboot my phone, I connect to my router no problem. If I turn wifi off (to save battery) and then turn it back on.... it shows my AP's as out of range.... but I do see my neighbours AP's. I also have an N10 with has no issues at all with wifi (and none of my other divises have issues either).
When I bought the N4 they seemed to be having an issue with it when setting it up.... but I was not paying close attention. I am wondering if I have a bad phone on top of the "normal" wifi issues that other are experiencing.
Think I will revert back to stock and swap it for another phone to see if I can at least just turn off / on the wifi rather then reboot to connect (how sad is that?)
Click to expand...
Click to collapse
**** UPDATE ****
I picked up a cheap belkin router and set it to AP mode.
My N4 has no issues at all with it. Connects when I want it to right away and is fast / solid connection.

Question about data connection and WiFi hotspot

I have been on a Nexus 5 for the last couple years and used it as a WiFi hotspot,, which has been an amazing thing to have. Especially at my office where I use it to give my Surface Pro 3 a connection... A couple of times I would activate my older HTC One m7 and try to do the same, but I never got as strong a connection and therefore when connecting the Surface to the hotspot, I'd get the dreaded "limited WiFi connection" and couldn't use it at all. I figured it was a bad hardware or a different antennae causing it. Switching back to the Nexus 5 always worked perfectly.
I recently got my HTC 10 and put Bad Boyz 1.1 on there (which is awesome so thanks to OMJ and everyone who helped him). The first morning I was able to connect and download a about 100MB file without issue. Since then the Internet is VERY spotty via the hotspot and pretty much unusable. I do see the LTE indicator on the phone bouncing frequently between decent, strong, and no bars....but the phone itself seems great as far as data connection.
Any ideas what might cause this? Or fixes? What would make one modern Sprint phones connection or hotspot ability worse than another? I'm honestly wishing I hadn't upgrades if I can't use my hotspot reliably...
Any ideas?

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