WiFi connected, but no internet - OnePlus 7 Pro Questions & Answers

Sorry for posting this on the wrong forum. For some reason I don't have the permission to post it under OnePlus 7 pro general support. Anyways...
So I had this issue ever since I got my device (about 3 weeks ago). Occasionally, my OP7 pro stops getting internet access (from different access points too). The issue is only with the OP7 pro the rest of the devices are connected fine.
I've tried toggling the wifi, forgetting the network, reset: wifi, mobile and Bluetooth under settings. The only temporary fix is to restart the device, but I would need to do it at least 5 times a day.
I'm on the latest update 9.5.8.GM21AA
Does anyone know how to troubleshoot this issue?

Stop using 1.1.1.1. or any other private dns if you are doing so

Thank you! Turns out AdGuard is the culprit. It uses a special DNA and creates a local VPN to filter ads.

Related

wifi problems

hello guys,
i may have a problem with my wifi connection.
i bought two days ago the phone and yesterday i was playing with it in my house. i have some kind of problem when i am connected to my rooter.
when i connected my phone, i started viewing some sites and watching youtube videos.
suddenly i had this problem:
at the browser when i clicked a site, it started load it but never ended, just showing a white page. if i pressed stop and reload then the site was loaded ok.
this happened all the time.
when i returned to youtube the videos started and played for 10-20 seconds and then were freezed because the phone could not get the rest video.
at the same time i had internet access from my rooter as i could navigate at sites from my tablet.
if i close and open my wifi on phone then the connection was ok but after a while (10 mins) this strange behavior started again .
has anyone ever had the same problem;
thanks you
(PS sorry for my english)
What ROM are you using, and did you try to reset the phone and wipe cache/dalvik?
Sent from my HTC One XL using xda app-developers app
the phone is new (2 days old) and its stock
Have you tried simply power-cycling the router? Should be one of the first things you do, anytime you have a WiFi problem, as this will clear it up many times. I think I've seen this help even in cases where other devices work on the WiFi network properly.
yeap, i restarted both router and the phone
i have changed all the settings on the wifi-settings but did not see any progress.
From htc support told me to worj the phone in safe mode, but i have to wait until i return home
besides this problem, i cant connect and the router at my office (i had the same problem with mt s2 after an update, but 1-2 months later sammy rolloed out an update and the problem fixed)
Is security enabled on your WiFi network, and if so, what type (WEP, WPA, WPA2, etc.). You might try switching the encryption type (although WEP is not recommended, as its not very secure). I've seen cases where this has helped various connection problems.
I have had this problem with a lot of phones that friends and family bring by. 90% of the time the problem is a minor setting on the router. Some Android phones don't like AES encryption. If your encryption settings on your router are set to "AES" or "TKIP and AES" try changing it to just TKIP. You should see improvement with your connection.
You may have to change the security settings on other devices that are connected to that router as well to refelect the change.
hey guys,
yesterday evening, when i returned home i checked my router if it was able to change the frequency from 2.4GHz to 5GHz but i could not as at the channel it did not had choises for 5GHz.
i did not change the encryption type.
i restarted the phone, and entered in safe mode. after 10 mins the problem occurred again, i removed chrome, and suddenly the phone started working fine for until 1 hour and so i figured out that the problem was the app chrome, but i left the phone in safe mode and went to bed.
next morning (today) i started watch sites and after 5 minutes the problem occurred again. (i did not turn off the phone from the previous night, still worked in safe mode)
is there any possibility the problem to caused when the phone is in standby? although i have the wifi activation in option always

[Q] WiFi Issue

Background:
A week ago, I flashed the Lollipop Developer Preview onto my Nexus 5. I am also in High School, and my school offers WiFi. When I went to school the morning after I flashed it, I was having some trouble with the WiFi. I usually open up Chrome and go somewhere basic (google.com) because the school WiFi will block everything and automatically redirect you to an authentication page, where you would sign in with your student ID and password. What would happen was I would try to connect to the open, unsecured SSID, my phone would connect to it, but would leave a little exclamation mark next to my WiFi indicator. I did some research on that and found that it was because my phone wasn't detecting an active connection, and was switching me back to Mobile Network thanks to the new Lollipop feature. Which means that when I would try to get redirected to the Authentication Page, it would use Mobile Network and successfully bring up whatever URL I threw in there. I searched some more on Google, XDA, and various other Android forums, to no avail.
So, I figured it wasn't the worst thing in the world, and decided to go some time without WiFi while sticking to my Mobile Network. After a couple of days, the WiFi issue seemingly resolved itself. I'm not sure if it was because of something I did, or whatever else. I used the same SSID, same URL for redirection, same browser, same everything. I didn't care, it was fixed. And I thought that was the end of it.
Fast forward to now:
Last night, I flashed the official stock image, straight from Google. I thought the issue I had the week prior was a bug that would've been fixed. To my surprise, I get to school, and sure enough, the same issue as a week before. I am, obviously, going to wait and see if it fixes itself again, but the issue sparked curiosity, and now I have to ask...
What would cause this?
What are some possible resolutions to this?
Is this something Google didn't think of when designing 5.0?
If anybody has/had the same issue, I would love to hear about it. Any help or tips/resolutions are appreciated.
Thanks,
206003
Update:
I'm not sure what happened, exactly, but upon coming to school this morning, I noticed that my WiFi works and the issue is gone. Though I'm glad, I'm still not sure why this happened. Any answers?
Sent from my Nexus 5 using XDA mobile app
I read here on the Nexus 5 site) that Lollypop has a problem when on channel 12 and higher on wifi. Might be your problem.
That's what I thought too. So I downloaded a WiFi analyzer and tried to connect directly to a channel 1 connection. It didn't work. I tried a channel 6 connection, which still didn't work. Any other ideas?
Sent from my Nexus 5 using XDA mobile app
I don't think you can do it that way. I think you will have to actually go into the school router and make the changes on the router. You will need password and permissions and I doubt that school will give it to you.
The WiFi analyzer I used showed me the available channels for the SSID, along with the channel number I was connected to. None of the channels worked.
Sent from my Nexus 5 using XDA mobile app
Same problem. Whenever I try to reconnect to any WiFi, it shows an exclamation mark. To make it work, I have to either switch airplane mode on then off, or forget network and setup again.
This happened ever since upgrading to Android Lollipop without wiping data. I am rooted if that matters.
Any updates? Changing channels is far from a feasible solution.
I found a better temporary fix. Once connected to WiFi, you disable data until the exclamation mark is gone, and then re-enable it.
I'm still not too sure what the fix is. Like I said, time solved my issue. I am still curious as to what it is though, so any input is appreciated.
Sent from my Nexus 5 using XDA mobile app
After a while, the problem reappears so I keep mobile data disabled while on WiFi. You can automate that with Smart WiFi Toggler. Problem pretty much solved.
Yup. Problem reappeared. When I try to disable mobile data and connect again, nothing happens. I still have the exclamation mark.
Sent from my Nexus 5 using XDA mobile app
Here's how I do it:
Connect to WiFi > Disable Mobile Data > Surf the Internet > Exclamation mark disappears.
Android 5.0.1 seems to have fixed the issue for me.
Greetings.
I had the same wifi! problem with everyone and when i looked at my router's settings i noticed that there was no dns selected in the router. not from isp, not manually, nothing. So i just checked dns from isp and voila.
hope that helps someone.

WiFi issues - my findings

Hi all,
Just sharing my findings.
Some of you are having issues with the wifi connection sticking or dropping despite the phone reporting it to be connected.
Turning WiFi on and off sorts it out momentarily or closing and opening the app helps it.
I've found the issue for me is that my home router has combined SSIDs for the 2.4/5ghz bands, I could easily separate the two, but politics doesn't allow me to do it...
Anyway since Android has removed the ability to force use of bands, I've found the connection keeps switching between the 2.4ghz and 5ghz band and it needs a refresh via opening and closing an app, or turning WiFi on and off.
So I'm using Swifi from the app store and told it to force 5ghz use, and magically all my problems with sticky wifi have disappeared.
Ok so some further investigation, Swifi works on ID name, and despite asking it to utilise the 5ghz band, it went back to 2.4 and my problems started again. But it's not the fault of the app, it's my retarded setup at blame.
So I blacklisted my U11 on the 2.4ghz band via the MAC filter, thus forcing it to only be able to communicate via the 5ghz band...and this is the longest I've been able to use my wifi at home without it crapping itself out.
Though I have to say this is the first time I've experienced this problem, and I've used loads of different devices at home and not forced them to be on either band...e.g. Google Pixel C tablet, Dell 5175 tablet, Lenovo Yoga S1, Lenovo Zuk Z2, iPads, other mobile devices etc...so something funky is going on with the U11 for sure.
It sounds like I could just separate the SSIDs and that's true but when you have a retarded sibling who insists they need to be combined so he can have maximum wifis when outside his dungeon for all of 5 minutes per day/literally ...
I'm glad I'm moving out soon.
Anywho, guys it seems my problems with WiFi was around competing bands under the same SSIDs...
Edit:
My WiFi problems are officially over, forcing it to a single band has fixed the weeks of frustration, awesome.

Strange mobile data problems

Hi.
I noticed that after being connected via WiFi for a longer time, e.g. during work at the office and then when I go out of WiFi range and phone switches to mobile data some apps don't seem to be able to receive mobile data or don't see the connection at all. E g. Waze (shows "waiting for network") and OnePlus community app can't read contents. Chrome browser works without issues at the same time.
Only reboot fixes it.
Anybody experiencing similar issues?
Not sure how related it is, but I was having problem with my vpn. When I got off wifi it would not automatically connect and apps wouldn't have data, there were some other symptoms that I don't remember now. Anyway going to developer settings and turning on mobile data always active fixed the problem for me, might be worth a shot.
Same here
C3C076 said:
Hi.
I noticed that after being connected via WiFi for a longer time, e.g. during work at the office and then when I go out of WiFi range and phone switches to mobile data some apps don't seem to be able to receive mobile data or don't see the connection at all. E g. Waze (shows "waiting for network") and OnePlus community app can't read contents. Chrome browser works without issues at the same time.
Only reboot fixes it.
Anybody experiencing similar issues?
Click to expand...
Click to collapse
Yeap, I use nordvpn, ones I leave my house using wifi and vpn, I loose data when switching to lte.
I don't have this problem with my op6.
Thanks for your input. So it looks like it would maybe be worth it posting about this issue in the OnePlus support forum.
I just noticed default 4G network mode is not the one I used to have on all my previous devices. (See attached picture). I'll try to switch to LTE Global and will be checking whether it changes anything.

Issues connecting to public WiFis

Hi Guys,
A strange one: since getting my Note 20, I noticed it won't connect to majority of public WiFis in supermarkets, etc. My old S8 was connecting fine to the same spots.
It does connect fine to password-protected networks, the issue seems to be specifically with public WiFi spots that require registration.
What exactly happens: I connect to a public WiFi, it then opens the WiFi portal asking to enter the details to register. I do that and then it closes the page and says "No Internet" and asking to disconnect from the WiFi or keep it on without internet. In some places, it won't even bring the WiFi portal for details and just says "No Internet".
My S8 was connecting fine in the same spots and these are spots that definitely have WiFi, for example, in hospitals, supermarkets, etc.
Forgetting the WiFi and reconnecting doesn't help nor "resets" the connection as it seems the WiFi app on the phone still storing that info.
Did any of you experience this before? I thought it might be because I have some packages disabled via Package Disabler but I enabled all the packages, restarted the phone to no avail.
Can't think of anything else and don't want to do a factory reset either.
I have this issue in some places too. Most notably in St Pancras Rail Station... It will instantly kick me off. I wonder if its to do with MAc Randomisation?
fkofilee said:
I have this issue in some places too. Most notably in St Pancras Rail Station... It will instantly kick me off. I wonder if its to do with MAc Randomisation?
Click to expand...
Click to collapse
I was thinking the same and disabled MAC randomisation with no luck.
By the way I also live in the UK and this issue happens in many places - had it today in hospital trying to connect to NHS WiFi, then had it on train trying to connect to SouthWest Trains wifi, then in ASDA, Sainsbury's... My S8 was working just fine. Can't believe all public hotspots magically stopped working.
I wonder if there is something in the phone / Android version that doesn't work right. Or maybe some silly settings I changed. Don't want to factory reset though.
By the way, I couldn't enter download mode to wipe cache partition. I tried volume up + power key combination. Is it different in HK version?
Today I took my old S8 to the same place. S8 connects to public wifi without issues, Note 20 Ultra doesn't connect, it says no widi available. So this is definitely software issue but not sure what it is.
Did anyone else experience this?
VirtualWaver said:
By the way, I couldn't enter download mode to wipe cache partition. I tried volume up + power key combination. Is it different in HK version?
Click to expand...
Click to collapse
You have to connect your phone to pc or laptop to enter in download or recovery mode.
VirtualWaver said:
Today I took my old S8 to the same place. S8 connects to public wifi without issues, Note 20 Ultra doesn't connect, it says no widi available. So this is definitely software issue but not sure what it is.
Did anyone else experience this?
Click to expand...
Click to collapse
Have a look here.
https://eu.community.samsung.com/t5/galaxy-a-series/public-wi-fi/m-p/1596696#M3977
After playing around I have found the root cause: Private DNS. It was set to 1dot1dot1dot.cloudflare-dns.com. Disabling it allowed the device to connect to a public wifi. Might be useful for the others who experienced the issue.
VirtualWaver said:
After playing around I have found the root cause: Private DNS. It was set to 1dot1dot1dot.cloudflare-dns.com. Disabling it allowed the device to connect to a public wifi. Might be useful for the others who experienced the issue.
Click to expand...
Click to collapse
Ok, so it was user error then ?

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