Having a problem with my WiFi, it is constant on the WiFi download arrow. I have checked the usage with data manager and it seems to be OS Services. I updated to Jelly Bean 3 days via Kies. It was fine the first day and since yesterday I have been having this problem as well as my brother who has a S3 who updated OTA. I started diagnosing the problem and it seems to stop if I disconnect every computer in the house. As soon as I connect one of them no matter which one the constant download arrow returns. This is also happening at my school without my computer there. Had the phone since July never had a problem. Any ideas for a fix?
Btw this is a Rogers I747.
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Altoids94 said:
Having a problem with my WiFi, it is constant on the WiFi download arrow. I have checked the usage with data manager and it seems to be OS Services. I updated to Jelly Bean 3 days via Kies. It was fine the first day and since yesterday I have been having this problem as well as my brother who has a S3 who updated OTA. I started diagnosing the problem and it seems to stop if I disconnect every computer in the house. As soon as I connect one of them no matter which one the constant download arrow returns. This is also happening at my school without my computer there. Had the phone since July never had a problem. Any ideas for a fix?
Btw this is a Rogers I747.
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Hopefully somebody figures something out. I had a similar issue with ICS, but it was Doubletwist Airsync forcing my wifi setting to always now. Not sure what is going on now. But if it's doing what you say with the computers, maybe it has something to do with WiFi direct or something.
I have even factory reset and it was still doing it before I even loaded anything on to the phone. Is there a way I can completely fresh install the OS?
Any time I look at my wifi (In both ICS and JB) I have an almost constant download arrow, but only on WiFi.
If I turn wifi off my data does not do the same thing. I downloaded a network monitor and found that even over an hour of idle the phone had only downloaded a few kilobytes of info. Like you said, it was for OS services or something OS related.
I just assume it's some kind of ping that the phone has to do so the router doesn't disconnect it? I'm not overly sure how WiFi works. After seeing no significant decrease in battery life I stopped worrying about it.
Its just odd that 3 months + I have had this phone it never happened. Now all of the sudden this is happening to two phones after the a day after the jellybean update.
sorry to bring this up again, but has anyone found the issue or solution?
My GN 10.1 has this same issue.
I'm sure this is a nice battery drainer.
Hi recently after some time of my phone being on, any data access over wifi has become very slow. A restart fixes the problem but I am confused on what could be causing it. It happens with different wifi hotspots and in different apps (internet, reddit is fun, line etc) clearing the ram doesn't help and I tried 'clean master' which I thought worked the first time I tried it but then didn't work the second time.
Has anyone had a similar thing happen?
unrelated (my phone has build number JZO54K.N7100XXDME6 and is version 4.1.2 - is that a uk model? as I bought it here but it was very cheap and I am thinking it may be an import)
Hey guys. I'm having a very weird WiFi issue on my A520F.
Today the WiFi froze. It wouldn't turn off when I switched it off. After I while it turned off but took ages to turn it on again.
I factory reseted the device because I thought it was a software issue. It didn't work - after the first boot it was the same.
After a while after this, the WiFi started working again, but only for a period of time, then it would just freeze again for apparently no reason. Switching it off and on solves the issue for a while, then it freezes again saying that my WiFi is limited.
I can't take any logs since I'm not rooted (and don't have a PC to use ADB), and this is really scaring me since it happened out of nowhere. An hour before this started happening WiFi was working just fine.
I haven't installed anything unusual today, just connected for the first time on a new, but trusted, WiFi.
I've also reseted my WiFi router to its factory settings, thinking that it could be the issue, but the problem persisted. My Chromecast works just fine on the very same network.
Did this happened to anyone before? I've tried to root my phone a while back and, since it didn't worked out, I gave up and flashed the latest firmware from my country. This phone originally came with German firmware in it and I flashed it to a Brazilian one, which is the one I'm using and had no issues so far.
Can this be a hardware issue?
Thanks in advance!
So I guess I'll end up solving this on the weirdest way I can imagine.
After I posted I logged into my modem's settings and took a log at its logs. Seems that the moment this issue started to happen was near the time that the DNS server my modem was using started to fail.
I never thought that such a simple thing could mess this things like this. I mean, the DNS server is essential, but how that could freeze my phone's WiFi? Either way, I changed the DNS to Google's DNS and since then I haven't had any freeze or disconnetion. I'll test a bit more to see if the problem is gone.
Well, I do believe that I found the root of the problem.
As some of you may know, modems tend to stay on for a very long period of time (no one wants to lose internet connection, so we rarely reboot then), and for reasons I don't know (and as a tech support guy I've seen this happen A LOT) they freeze sometimes and only work again after being completely turned off and on.
Since the issue started again when I was messing with the modem settings (trying to change the DNS again to see if the problem would return), I decided to give my modem a few minutes of rest.
After that, I've powered it on again and went through the initial setup (my ISP provides an simple wizard when you first connect to the WiFi) and up until now I'm not having issues.
I'll wait a few more hours to report again, but so far so good.
So it seems that giving those things a few minutes rest every month or so isn't a bad thing at all.
I live in a bunker, sort of, so I really need VoWiFi. But so far (I got the phone yesterda) it only works for 20-30 seconds, and then the other party in the conversation can't hear what I'm saying. Has anybody else had problems with this? My network should not be he problem because I used my Sony Xperia X Performance (which went out of use yesterday) on it until yesterday, and I have never had any problems with that. My wife's previous S6 worked as well, and her current Motorola G6 Plus works on it. What should I look for, in the phone or the network? I have the phone set to "perfer wifi", of course.
I wonder if this is a problem with WiFi stability? I have tried to reset network settings, but that didn't seem to help.
Tested now with three networks in my house, guest, regular and appartment two, and with the cell network off, so I know the problem isn't in unwaranted switching between them. It only takes 5-10 seconds before my voice dissappears for the person in the other end, and then the call is broken after around 20-30 seconds. Something's seriously wrong here!
Seems to be a general Samsung thing. My son's S7 Edge has exactly the same symptoms on my wifi! I have changed some things in the network since my wife used her S6, so maybe that wouldn't work now. But my Sony Xperia X Performance and her Motorola G6 Plus worrks without a hitch. Is there a known difference in the implementation between those and Samsung, perhaps some ports I need to open?
Turned out to be my DSL router. It didn't work in bridge mode, but putting the router in router mode fixed it. Weird...
POCO F3
Suddenly, The mobile data connection started to fail.
It suddenly disconnects, and I have to turn airplane mode on and off to get it to connect again, but it doesn't take long, it varies, and the connection is lost again.
And when it's connected, it's very slow, but a lot, it went from a 15mbps connection (before the problem), to a .3mbps connection. I have installed several ROM'S, and nothing fixes it. Another thing I've noticed is that suddenly he also started using Roaming when he didn't have it before.
Update: Testing with another mobile, with the same SIMCARD, i can connect to my red 4G, but in this POCO F3, when i tried connect to 4g cant, I get a notification that the selected network cannot be connected, The only one that accepts me is the one with 4G R (I think it's roaming).
UPDATE: Also I think that is a problem of crash of the Band 28 LTE
My modem often crashes too, since I bought the phone last year. Standard ROM, no unlock/root, updates when FW goes out.
I mostly see modem crash when the phone switch from wifi to LTE to wifi to LTE etc when I go outside. At one point I notice I have no data connection, sometimes it displays the "no SIM card" icon, the modem program loops and crash and the phone becomes warm because of this and lose its battery real fast.
Only cure is to reboot the phone.
Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?
stevencrayne2 said:
Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?
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The truth is that I never found out, what I did find out is that my IMEI of my cell phone had a report of theft (I bought it second-hand) and only 2 networks (from my country) grabbed me: "telcel and altán", of which altán only got roaming and only telcel got the original 4g, on the other hand "at&t and movistar", nothing, only the company detected me, but they didn't get a signal... No way, I gave up, I switched to the only one that if he caught me it was Telcel (even if he didn't want to).
stevencrayne2 said:
Hi, my phone just started having a very similar issue after working fine for almost two years. I am on T-mobile in US, where are you? Did you find out any more info on this?
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A lot of people complain about modem crash since the beginning, Xiaomi never fixed it. It seems the problem is happening when switching cell towers/wifi. At one point you notice you have no data or the "no sim" icon, you have to reboot.
I was experiencing that a lot when I was on a MVNO for the major networks (Mint Mobile, Google Fi, etc.). Upon switching to AT&T Prepaid, I am experiencing far, far fewer disconnects. Some particular locations will give me the exclamation point, but by and large it's much better.
It seems everyone is torn in half, between this glitch being software related, or hardware related.
I have tried everything to blocking out certain bands with network guru, to taking my phone apart and looking for some kind of issue. Been through countless roms, and firmwares, and kernels. I've gotten a new Sim card too. Have tried Compressed air. with nothing seeming to solve this issue permidently.
Zinnz said:
It seems everyone is torn in half, between this glitch being software related, or hardware related.
I have tried everything to blocking out certain bands with network guru, to taking my phone apart and looking for some kind of issue. Been through countless roms, and firmwares, and kernels. I've gotten a new Sim card too. Have tried Compressed air. with nothing seeming to solve this issue permidently.
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For what it's worth, I'm also using a custom ROM (Arrow OS 13). I recall a while back there being kernels people developed that attempted to address the phone restarting issue.
Veiranx said:
For what it's worth, I'm also using a custom ROM (Arrow OS 13). I recall a while back there being kernels people developed that attempted to address the phone restarting issue.
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Phone does not restart. It's just that at one point, you notice your data are not working, you cannot enable them, nor make phone calls, you may have the "no sim" account, your phone may go warm because the modem is constantly restarting.
In the end, you have to reboot your phone and everything is normal again.
As it about always happens while outside, I cannot connect a usb cable to dump logcat or others.
Magister54 said:
Phone does not restart. It's just that at one point, you notice your data are not working, you cannot enable them, nor make phone calls, you may have the "no sim" account, your phone may go warm because the modem is constantly restarting.
In the end, you have to reboot your phone and everything is normal again.
As it about always happens while outside, I cannot connect a usb cable to dump logcat or others.
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Try to put some pressure on the phone screen, not too much, push down slightly or press it together in your hands while holding volume up volume down and power button. Let me know if this helps
Zinnz said:
Try to put some pressure on the phone screen, not too much, push down slightly or press it together in your hands while holding volume up volume down and power button. Let me know if this helps
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Were you listening to something on Bluetooth via mobile data?
were you driving?
What was the ambient temperature in the room or outside when this occured?
Just trying to narrow down hardware or software.
My poco f3 likes to reboot with the no Sim error, when I'm driving around on mobile data, listening to Spotify via Bluetooth.
I'm curious what circumstances other users have encountered this error in, or what they were doing at the time when it occurred
As it happens about only when I'm outside, I can be driving (phone connected in BT) or walking.
But my phone never reboots, never.