WIFI Issue in LG G2 VS98039A 5.0.2 - G2 Q&A, Help & Troubleshooting

Hi there,
I bought a used verizon Lg g2 vs98039A with lollipop 5.0.2. The problem is that my phone is having wifi issues. Basically it keeps disconnecting after every 5 minutes or so. The wifi functions for a while then it stops receiving or sending (i can say that because the two small arrows under the wifi icon black out) and then it disconnects from that wifi by itself and then reconnects and works fine for a few minutes and repeats it. I tried the following things
1) First of all i deleted every saved wifi under the wifi tab and then restarted the phone and then reentered the password and the phone seemed to work fine for some time (usually less than a day)
2) Another thing I tried was doing the same as step 1 and also reset my router at the same time. (This worked better than the first one and its effect lasts as long as I dont restart my phone or router or connect to any other wifi device.
I also have two more problems
1) Sometimes the data connection stops working (usually works fine after restarting the phone but as I told restarting also disturbs the wifi fix i applied and hence it is again very frustrating)
2) I don't it is software related but my phone's GPS is just crappy I haven't seen it working without data. Please tell me whether its software related or just hardware.
Please help because this is really frustrating and it really irritates me. I don't really care about the data or gps issue but the wifi issue is very irritating. Please can anyone tell me a permanent way to fix this. Also note that my phone is not rooted and i have no idea about rooting. Please help!!

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For some reason the data connection on my Legend turns off spontaneaously. Only way to turn it on again is by turning on/off flightmode or data connection.
Because of this I'm missing out on emails, facebook updates and whatsapp messages. Very, very annoying.
It should just work in my opinion -i.e. have a stable, permanent data connection . Btw, I have tried with my sim in another phone and then the connection is stable. So I am sure it is hardware/software related.
Anyone? Thanks!
I get the same issue if I'm out of range for extended periods of time. Almost as if the Legend forgets to search for signal again. A reboot fixes it in the short term
3G/ data connection turns off spontaneously
I have a same issue on my Legend, hoping that someone will come up with a fix...!
I also had this issues with CM-6.1 after 3 month without any problems.
Today i updated to CM-7.0-RC4 and the problem is gone and hopefully don't come back (Was gone before i updated the radio)
anyone has some useful idea in this topic? i am also ccping with this problem. syncing worked for 4 months and but since then it just disconnect from mobile data network and i have to force it to connect again. I have stock 2.2 rom anyway.
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[Q] BELL Atrix wifi to hspa ... problems

Is anyone else getting the same problem of no data connection when leaving your wifi network and going to Bell's network?
Every morning when i leave for work i get the same msg from every app trying to retrieve data. When i power cycle my phone, everything is fine.
I used to have this problem with 2 of my previous Atrixs. Now I'm on my 3rd and there seems to be no problem with data.
I've got the same problem. Sometimes it takes a reboot to get it working, extremely annoying.
other threads with this same topic. but just to check, try turning off wifi with the motoblur widget or in settings and not the power control widget. for me I haven't had the problem since day 2-4 (i have had it for 3 weeks now) that was the biggest thing i changed.

Wifi speed issue

I have a problem with the wifi speed on my n4. For me it seems strange that no one seems to have the same problem as I do. I have even got a replacement phone because I thought it was wrong on my first n4 but the problem persist on my new phone as well. I hope someone can help me or maybe guide me in some way.
Probelm
Wifi speed on my n4 is really strange. When I first connect to my home network(router asus rt-n56) the speed is usually good (not always) and I get about 40mbit/s down. After some time, which vary from minutes to hours, the speed drops and caps at 8mibt/s which is slower than my mobile data speed. Sometimes toggling wifi on/off get the speed back again but only for a short time then it sets back again. About 95% of the time I am connected to the network the speed is slow. This is very annoying when downloading apps, files, syncing spotify lists and so on, to download a big file takes longer time on wifi than on 3G. Non of my other devices(galaxy s1, nexus 7 which also runs stock 4.2.2, ps3, 2 laptops) have the same issue.
What I tried
I tried a lot of different settings on the router including different firmwares, nothing helps.
I tried different networks and I only found one that worked as it should and that was at the university, on all other the problem appeard.
As I said, I have got a new nexus 4 to replace the first one but the problem persists.
I have tried changing all wifi-settings on the phone but nothing helps.
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Thanks

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Hello guys, i see there are similar thread, but my problem isnt exactly like others i saw so i am making new thread.
About week ago, my LG G2 (2 and half years old), was in mini bootloop (for about 5 mins, it couldnt pass LG screen) but then it started working normally. Few days later, phone restarted it self and WIFI died. Bluetooth works fine, gps aswell, data works fine. Everything but WIFI and hotspot.
Wifi works for 2-3 minutes after starting phone, but than it dies. Somethimes it wont turn on, while othertimes it says looking for wifi (and never finds one).
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Now my question is, does it has to be logic board or prehaps its some anntena or something that could be changed separatly?
Thanks
I have the same problem on mine but I have unlimited 4g mobile data so i don't use it at all.
I find this video and a lot of people say it's work.
https://www.youtube.com/watch?v=6_0jzp65eLY

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I'm experiencing issues with the network, I often have to go to plane mode then disable it to get my connection back (I always have the 4G logo on screen, but internet pages won't load, facebook either, well everything) I'm seeing posts about the WiFi issue, but nothing about this, am I the only one experiencing this ? It occurs every 5 minutes or so, pretty annoying when you are in the middle of a youtube video or so..)
Thank you in advance !
I could say I have the same issue.
I realize this post is 2 months old but I also have this exact same problem. Data on WiFi works perfectly fine. On actual mobile data though it works great for a long period of time (hours - days) then suddenly gets horrible. Disabling and re-enabling data seems to fix it most of the time, then it works great again for a good while.
Would this indicate a software glitch? I've been wondering if I should try some custom ROMs. Or would it be a problem with the physical antenna or data module in the phone?
I'm on the verge of sending it back under warranty but if it's software maybe something else can be done to fix.

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