[Q] Weak Wifi signal after Verizon update - Galaxy S 4 Q&A, Help & Troubleshooting

So I got an update pushed to my phone last week from Verizon and I seems like ever since my phone cant detect WiFi for crap.
For instance, I have a WiFi hot spot for work and the only way I get 4 bars when connected to it is if they are right next to each other. I moved about 3 ft away from it and put my wife's phone (GS3) next to mine and ran WiFi Analyzer on both and mine was receiving the hotspot a solid 30 dBm lower than hers. She had 4 bars while connected to it also.
I've searched the googles but most of the issues I'm finding are months old and are for constant disconnect or inability to enable WiFi. Any help would be greatly appreciated.

jxm1092 said:
So I got an update pushed to my phone last week from Verizon and I seems like ever since my phone cant detect WiFi for crap.
For instance, I have a WiFi hot spot for work and the only way I get 4 bars when connected to it is if they are right next to each other. I moved about 3 ft away from it and put my wife's phone (GS3) next to mine and ran WiFi Analyzer on both and mine was receiving the hotspot a solid 30 dBm lower than hers. She had 4 bars while connected to it also.
I've searched the googles but most of the issues I'm finding are months old and are for constant disconnect or inability to enable WiFi. Any help would be greatly appreciated.
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Try a different modem.

Related

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.
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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.
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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.
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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
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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?)
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**** 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.

D800, bad wifi, bluetooth connectivity

I recently just purchased a Razer Nabu x. I was totally excited to start using. Well, I thought it was defective, since it kept disconnecting. I tested it on a Nexus 4, however and it did not disconnect. I even downloaded a signal meter on both phones. The nexus 4 read nearly full bars when next to the smartband. My d800 read two bars next to it.
So, my bluetooth is screwed. What else is wrong? My WiFi. Where my girlfriend's phone (the nexus 4) can connect perfectly fine to our school's wifi network at nearly all times. Mine insists on being a chode about it.
It will say that the signal is Excellent. I click it to connect. Either a) nothing will happen or b) it will flash to 'connecting' for a split second, then return to saying 'saved.' It's also worth noting that after it says 'connecting' for a second, the signal usually drops to poor. It gets subpar signal in my room. Next to the router. Granted, it normally works fine on my home wifi, and i can understand that the school's wifi is probably a little harder to connect to, but it's significantly worse than my old phone (which is my girlfriend's current phone, the nexus 4 I mentioned earlier)
I've installed a couple roms on my phone, and even on stock the wifi was a hassle and refused to connect. I'm currently running Resurrection Remix I purchased the phone used, with no information except that it had a clean ESN so I don't know of any damage that would have been done to it.
Has anyone ever had a similar issue with bluetooth/wifi? Just absolutely awful signal, reception, connectivity? if so, how did you fix it? And would it be possible to REPLACE the wifi/bluetooth antenna?

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?

Severe WiFi issues Please help!

Hey guys, on my ZTE Axon 7 A2017G, I'm having really bad WiFi issues.
I've attached some screenshots, but overall it seems like the WiFi keeps dropping out randomly.
My WiFi is not at fault here, I have a 30 Mbps connection and it has full range where I'm sitting, (5-10 metres from router) and there is no interference.
I do believe this to be a faulty phone, but if anyone has any suggestions please do help. I do still have this covered under warranty, so I can return the phone if needed to.
:good: :crying:
edit:
also for some extra information, the two arrows next to the WiFi icon are not always present whilst using the phone on WiFi, and when they are not present, the phone's apps will say no WiFi and if I check the settings app, it says under my network's name: Connected, no WiFi whilst there is full connection and I would have to forget my network and reconnect again.
I have an A2017U and it also has unreliable radios. My WiFi stats show the AP being weak and about 50m away. It suddenly dies and comes back saying it's a strong signal 4m away. Run a WiFi analyzer on the Axon 7 and another phone at the same time. The Axon 7 will show APs randomly fading out while the other phone shows steady signals. I recommend returning it under warranty. You might get another phone that dies less often and ZTE will lose a bit of money for not maintaining their flagship product.
Alright, thanks I will try the WiFi analyzer and return the phone under warranty.
kevinmcmurtrie said:
I have an A2017U and it also has unreliable radios. My WiFi stats show the AP being weak and about 50m away. It suddenly dies and comes back saying it's a strong signal 4m away. Run a WiFi analyzer on the Axon 7 and another phone at the same time. The Axon 7 will show APs randomly fading out while the other phone shows steady signals. I recommend returning it under warranty. You might get another phone that dies less often and ZTE will lose a bit of money for not maintaining their flagship product.
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So, I tried the WiFi analyzer with my zte axon 7 and a family member's galaxy s8 and both phones show around the same signals for the various APs and both phones randomly phase out APs at around the same time (probably due to weak connection, because its the neighbours WiFi) and so I'm really confused to what the problem is. @kevinmcmurtrie
My Axon 7 has the radios just drop dead. One common cause is that it wants to switch from 2.4 GHz to 5GHz shortly after waking up. It can roam fine but band switching kills the connection for about 10 seconds. Other drops are a total mystery. A WiFi analyzer shows APs randomly vanishing or muting for a while then coming back, with no relationship at all to real signal strength. Same goes for the cell radio. It loves dropping to a legacy EDGE tower when there's plenty of strong LTE signals around. Putting the phone in my pocket kills the cell data and it never comes back until I cycle airplane mode.
I've seen this on three Axon 7 phones. I have two and one was replaced, for a total of three. The second phone became stable when LineageOS was put on it - no drops, no vanishing APs, no EDGE, no missing cell data. I'd use only LineageOS if WiFi Calling was supported.

New phone, radio issues

Since getting this phone last week, I love it, except for 2 issues. First, the hotspot, after disabling it, still shows up on my laptop as an available connection, and when this happens, the battery drain is significant. This happened 2 nights ago, I had disabled the hotspot before going to bed, and battery drained from full charge to ~55% overnight.
I noticed this issue the first day I had it, and tried a factory reset. That did not resolve the issue.
Today, to add another wrinkle to the problem, bluetooth would not connect to any of my devices. I used the option to "Reset Wi-Fi, mobile & Bluetooth," which worked for the bluetooth, but not for the hotspot. I had to reboot the phone for that to work properly.
In some troubleshooting on the hotspot issue, when disabling the hotspot, my laptop will disconnect, but it still shows the hotspot from the phone as an available connection, though it can't connect at that moment. This problem isn't consistent, though it's happened at least twice.
I'm running the latest stock Essential software.
If anyone has had any experience with this issue, or has found a solution, please share your knowledge. Thanks!
I never had problems with BT when this was my primary phone.
What made me switch back to my Huawei Mate 9, was the signal issue I had with the Essential.
I mean everything on this phone worked PERFECT, but, using the straight talk sim (tracfone/at&t),
I had problems maintaining a signal at time, where I NEVER had signal problems before.
p51d007 said:
I never had problems with BT when this was my primary phone.
What made me switch back to my Huawei Mate 9, was the signal issue I had with the Essential.
I mean everything on this phone worked PERFECT, but, using the straight talk sim (tracfone/at&t),
I had problems maintaining a signal at time, where I NEVER had signal problems before.
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That's interesting. I'm wondering if this has anything to do with this phone being a universal carrier phone. I'm on Verizon, and this phone is perfect on signal strength. Since the Huawei is a GSM only phone, perhaps it works better with GSM carriers.
By the way, nice signature. I'm the co-host, AKA sideshow, for Armed Lutheran Radio.
pastorbennett said:
That's interesting. I'm wondering if this has anything to do with this phone being a universal carrier phone. I'm on Verizon, and this phone is perfect on signal strength. Since the Huawei is a GSM only phone, perhaps it works better with GSM carriers.
By the way, nice signature. I'm the co-host, AKA sideshow, for Armed Lutheran Radio.
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Don't really know...it has the GSM bands that at&t uses, 2,4,5,17,30
I think it might be similar to when Apple slapped a metal cover on the back of their phones and
had signal issues. One of these days when I'm bored or snowed in, I might play around with seeing I
can get the back off and see if that changes anything.
I know its not what you wanna hear but try putting it on 3G mode only.
Where i live i get inconsistent or no signal if im in 4G mode from T-Mobile. If i travel south to a bigger city, i can run 4G all day long and no issues. If you get H+(3G) when you set it to 3G, then it might be a band/carrier issue with 4G in your area.

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