This morning I was confronted with something weird. My phone all of a sudden could not connect to a remote VPS server via POP3. It would just say No Connection.
The same phone however could connect to everything else, including other services on the same remote server. And, it could connect to other servers using POP3. If I switched to WiFi, it then connected just fine.
Drove me nuts trying to figure out what the issue.
Obvious things were checked, firewall, pop3 server etc... to no avail...
So finally, I figured that Verizon was having some weird 4G problem related to port 110.. I had the POP3 server, listen on a secondary port... Still nada...
While looking at the POP3 Server configs, I saw that they now had support for ipv6, but that by default it didn't listen to them. So I changed the configuration and bang.... the phone connected...
It was apparently trying to connect to ipv6 since the time I found it was failing.
Wonder if anyone has run into this.... Looking at the logs, my phone is the ONLY device connecting via ipv6, everything else is using ipv4.
Well this turned out to be pretty simple.
IF you publish an AAAA record for a host, and you are using Verizon 4G, it will use the AAAA entry for the host in liu of the AA record.
In my case, this had surprising results that once I figured it out made sense, but at the time caused a lot of confusion as to what was the trigger for the action that was taking place.
krelvinaz said:
Well this turned out to be pretty simple.
IF you publish an AAAA record for a host, and you are using Verizon 4G, it will use the AAAA entry for the host in liu of the AA record.
In my case, this had surprising results that once I figured it out made sense, but at the time caused a lot of confusion as to what was the trigger for the action that was taking place.
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Yes.. you learned the hard way that LTE was rolled out with native IPv6 (and preferred stack too). Pretty smart to setup a new network using IPv6 and save us the headaches of upgrading later after the fact...
So I recently moved and had to hard reset my router (Netgear WNDR3700v4) due to forgetting my admin password. After I reset the router and got all the WiFi settings the way I like them my room mate and I started having trouble with our apps on the WiFi but no problems on 4G. He has an HTC One I have the Optimus G and we were both experiencing the same problems. So here is the story of how I figured out what was bothering the phones:
First we noticed the problem on Facebook and Youtube. Nothing would load as pictures and media but text came up fine. I tried re-installing the apps, no difference. Then I tried re-installing my ROM (SlimKat latest stable) no changes. So I did what any well versed IT would do and began my hunt on Google. I found very little to nothing, mostly people blaming routers or ISP's. That would simply not do. After carefully combing through my logs and comparing the WiFi data traffic on my PC's, game consoles, etc. It seems it was only our phones that had this problem. So I put my network engineer hat on and started tinkering with the routers settings. One forum thread suggested it might be a DNS problem. I figured that TimeWarner is such a garbage ISP the DNS servers were bound to suck. Well I tried OpenDNS and GoogleDNS ip's and there was once again no change. Now I was about to head-desk when I clicked on my routers advanced WAN settings tab, and there was the culprit. In the case of my router it has an option for the IPv6 to be DNS, 4to6, off, etc... In this case the solution was to disable it entirely. Sucks. It looks like KitKat has a problem with some routers IPv6 where a bit of data makes it to the phone and then the data stops. Any DEV's out here know of a fix for the IPv6? Anyone else have this problem? Everything runs great now that I'm back on IPv4.
TL;DR Try turning off IPv6 on your router.
dx58soi7 said:
So I recently moved and had to hard reset my router (Netgear WNDR3700v4) due to forgetting my admin password. After I reset the router and got all the WiFi settings the way I like them my room mate and I started having trouble with our apps on the WiFi but no problems on 4G. He has an HTC One I have the Optimus G and we were both experiencing the same problems. So here is the story of how I figured out what was bothering the phones:
First we noticed the problem on Facebook and Youtube. Nothing would load as pictures and media but text came up fine. I tried re-installing the apps, no difference. Then I tried re-installing my ROM (SlimKat latest stable) no changes. So I did what any well versed IT would do and began my hunt on Google. I found very little to nothing, mostly people blaming routers or ISP's. That would simply not do. After carefully combing through my logs and comparing the WiFi data traffic on my PC's, game consoles, etc. It seems it was only our phones that had this problem. So I put my network engineer hat on and started tinkering with the routers settings. One forum thread suggested it might be a DNS problem. I figured that TimeWarner is such a garbage ISP the DNS servers were bound to suck. Well I tried OpenDNS and GoogleDNS ip's and there was once again no change. Now I was about to head-desk when I clicked on my routers advanced WAN settings tab, and there was the culprit. In the case of my router it has an option for the IPv6 to be DNS, 4to6, off, etc... In this case the solution was to disable it entirely. Sucks. It looks like KitKat has a problem with some routers IPv6 where a bit of data makes it to the phone and then the data stops. Any DEV's out here know of a fix for the IPv6? Anyone else have this problem? Everything runs great now that I'm back on IPv4.
TL;DR Try turning off IPv6 on your router.
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That's interesting. I went out of my way to setup IPv6 on Comcast and am occasionally surprised to find devices I forget about "just work".
http://i.imgur.com/WooMp1P.png
So it seems that Lollipop's implementation of IPv6 doesn't work at all, and Google knows about it. Search "Lollipop ipv6" on Google for a bunch of info about it.
This is definitely the case on my Comcast router at home, as it takes 5-10sec of lag to even start loading something over Wifi, until IPv6 times out and it reverts to v4. I can't disable IPv6 on my router, and my LG G4 is too new to have a reliable root performed (I've tried, it didn't work). The only option is to use the app DNSet, which uses a VPN somehow to force the phone to use IPv4.
Well, when I do that, my phone suddenly becomes completely unable to receive MMS text messages. Also, I don't like that the app is routing all of my traffic through some guy's garage.
So I have this awesome new LG G4 and I have to choose between Wifi working properly, or MMS texts working properly? That is BS. Seriously has anyone come up with a fix for this that actually works?? Or do I have to go buy a new router without IPv6??
Hey everyone, I wanted to put together a thread focusing on wifi issues of different variety and what we can do to potentially fix or workaround the main issues
I personally have been working on a solution for the discrepancy that disallows me to connect to my enterprise wifi at work, lollipop and previous versions connect just fine. So far ive found this issue. May not be easiest nor even possible for some of the issues some of us are having, but i think its worth working towards solutions.
https://code.google.com/p/android/i... Owner Summary Stars&groupby=&sort=&id=188867
What wifi issues? You might need nrw router.
I was able to connect via guest, then they had lock it due to bandwidth consumption. I have password since im a supervisor and my other phone (5.1.1) connects just fine. The nexus says saved, but when i click connect nothing, doesnt say obtaining ip or authenticating. Credentials are correct and connected before to same network without lock
meltdeck said:
I was able to connect via guest, then they had lock it due to bandwidth consumption. I have password since im a supervisor and my other phone (5.1.1) connects just fine. The nexus says saved, but when i click connect nothing, doesnt say obtaining ip or authenticating. Credentials are correct and connected before to same network without lock
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Does your nexus connect fine to other wireless networks? How can you blame it on the device instead of going and fixing your work network settings instead? There are no wifi issues. Call an IT guy and he will fix your router.
meltdeck said:
Hey everyone, I wanted to put together a thread focusing on wifi issues of different variety and what we can do to potentially fix or workaround the main issues
I personally have been working on a solution for the discrepancy that disallows me to connect to my enterprise wifi at work, lollipop and previous versions connect just fine. So far ive found this issue. May not be easiest nor even possible for some of the issues some of us are having, but i think its worth working towards solutions.
https://code.google.com/p/android/i... Owner Summary Stars&groupby=&sort=&id=188867
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Click to collapse
Interesting, I just read through a lot (more than I can believe) of that issue log. It sounds like its technically not a Google/Android 6.0 problem even though the problem arose with the upgrade to 6.0. Have you considered doing what Nick suggested and reaching out to your enterprise IT administrators at work to see if they can or plan to do the necessary updates?
anglerstock said:
Does your nexus connect fine to other wireless networks? How can you blame it on the device instead of going and fixing your work network settings instead? There are no wifi issues. Call an IT guy and he will fix your router.
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Yeah it connects to others but all devices lollipop and older including iphone and blackberry connect fine. And its known that android m has issues connecting to some wifi that works fine with all other devices. If you do a quick search youll see basically all 6.0 devices (nexus 6, etc) have same issues once updated to 6.0 (hit or miss depends on network they try to connect to, but same story just fine before update). The IT dept are not going to change settings on their network that works fine with 99.9% devices that people have there, since im only one so far with a 6.0 device (IT request MAC address when you get pass) it obviously is some sort of security policy within the os or something of that nature
mlin said:
Interesting, I just read through a lot (more than I can believe) of that issue log. It sounds like its technically not a Google/Android 6.0 problem even though the problem arose with the upgrade to 6.0. Have you considered doing what Nick suggested and reaching out to your enterprise IT administrators at work to see if they can or plan to do the necessary updates?
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Click to collapse
Yeah, they are hesitant to change what works for almost everyone that connects to it. Also i think itd be a good thing to work on since most IT admin wont change for the very few with newer devices
On a side note i do feel like its more or less a cop out of them to claim its not 6.0 fault because when push comes to shove it works fine but once 6.0 it doesn't and nothing changed on the network
When I had my Nexus 5X, I had issues connecting to WiFi at home until I used the Network Settings Reset option under Settings > Backup and Reset. I think this issue came from the restore of settings during initial setup. Possibly worth a try.
Still, the issue I'm running into now is that my 6P only connects to one of the two routers at home. I have both broadcasting the same SSID though they're different brands and one's an older G router. On my Moto X running 5.1, the phone would connect to the strongest signal. Seems the 6P will only connect to one and never connect to the other. I've had the phone "forget" that one and connected to the other and then it refused to connect to the original. Very odd.
My point in saying this is that I wonder if there's a similar issue occurring in the OP's office. Though the same SSID is being broadcast, its as if the phone remembers the MAC address of the specific router it originally connected to and refuses to connect to any others. Just a thought.
Sent from my Nexus 6P using Tapatalk
Have you tried turning on developer options, scroll down and turn on legacy dhcp client under networking.
Yeah, ive tried that also
the fix in this thread might work, if you're rooted.
http://forum.xda-developers.com/google-nexus-5/help/android-m-wpa-enterprise-ssl-problem-t3219559
tcchuin said:
the fix in this thread might work, if you're rooted.
http://forum.xda-developers.com/google-nexus-5/help/android-m-wpa-enterprise-ssl-problem-t3219559
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Click to collapse
Just tried and sadly it didnt work
Tell the IT dept to upgrade their radius auth
I'm also having WiFi connection issues with eduroam (an often used protocol in UK universities) amongst other including my home dual band ac network. It locks out and can only be resolved by a reboot, which then takes 30-60 seconds to power off. Not normal or 'just an admin' issue. It seems to be software related as it is not constant nor predictable (ie it's not in certain areas and a reboot always reconnects). I'm unconvinced by the 'speak to your network admin' argument as it is neither useful or realistic and incompatible on my current patterns of usage or the issues being reported more widely.
My 6p works fine on my wi-fi router at home, but when I go over to my son's house, I have to go into Advanced Wi-Fi options and change the frequency band from automatic to 2.4 GHz only. Then I have to cycle my wi-fi off and back on. Then it will work on his router. Otherwise, it with keep trying to connect and fail every time.
Rob
Yeah, these are the issues (including the issue im having) that im talking about. Theres clearly issues with wifi on 6.0. Its not an issue with the hardware, nor is the solution "buy a new router" or "must be the settings on your companys network" granted most people can connect everywhere they've tried but if they tried where we cant connect or have issues they'd have same problem. Im thinking its a problem due to security policies or something along those lines but we should be able to alter, remove, or opt out of them at our own risk. Just thinking out loud.
Which build are you on? Mine ends in k. See: http://forum.xda-developers.com/showthread.php?t=3248499
So I've seen a few posts about slow wifi on the G5 here on XDA but can't remember there was any solutions really.
Has there been any progress regarding to this?
Seems like my wifi suddenly drops from time to time (like every 2-3min or something), the "wifi bar" doesn't drop for even a second though so I guess it stays connected but isn't able to pull/send requests.
Getting quite annoyed with this since it's faster with my 4G network on than 100mbit wifi.
Also, might be a coincidence but overall I feel like my wifi got slower when I got the G5, on my Macbooks etc that is. Could of course be some router issues but not likely.
Any ideas? Kinda bummed out since I love the phone.
Might be a ip6 issue it is on my g4 use an app called disable ipv6 and it helps. Dont know if g5 suffers from the incompatability either
I would replace the phone. I get no wifi drop out and wifi is blazing fast when my internet connection at work and home isn't playing up.
If you can, disable IPv6 on your router, or if you have the European Varient and have root, there is a script to disable it on your device. I had the same issue and that was the trick. Get an app to test for an ipv6 leak before-hand, just to be sure.
KAV1TY said:
If you can, disable IPv6 on your router, or if you have the European Varient and have root, there is a script to disable it on your device. I had the same issue and that was the trick. Get an app to test for an ipv6 leak before-hand, just to be sure.
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ALSO, If you head into your developer settings, you can enable "Legacy DCHP" I have found this useful on a number of devices that were having issues with WiFi.