Hello, I am experiencing severe problems with Internet (both mobile data and Wi-Fi) and mobile network connections on FairPhone 4 with the newest /e/ OS.
I noticed that some apps have no Internet access, while others have. Once Telegram and Whatsapp do not work. I turn off and turn on the phone - Telegram starts working, and Wikipedia stops. Another time the browser or one or another e-mail app. Another time all at once. Or the network connection suddenly disappears, so text messages don’t come in and calling doesn’t work (at the same time it usually works when the Internet doesn’t work in one app and it works in another). Until I won’t notice it and turn off and on the phone, I will get messages about missed calls. If an app doesn’t work, it doesn’t matter if I connect WiFi or not (it doesn’t work over either mobile data or WiFi), although on other devices WiFi works perfectly.
What should I do? This makes the phone unusable. Also, if I transfer the SIM card to another phone, everything works perfectly.
Hello,
I’m sorry, I can’t help you.
I’m using /e/OS 2.1-t-20240603406607-stable-FP4.
Every thing works perfectly for me. I don’t use WhatsApp nor Telegram but Mastodon and signal.
Could this problem be linked to these applications?
I hope that other people who use these applications will be able to answer your questions, because my experience can’t be of much help to you…
I doubt that the problem is connected directly to any particular application, as I am discovering many new ones that have no Internet connection and usually regain it after I turn off and on the phone one or two times (and when they regain it, some other app usually loses it). Today Shazam and ProtonMail. Another time some other privacy-friendly e-mails.
Do you use another DNS resolver server or from your ISP?
If another, which one do you use ?
Have you configure IPv4 and v6 addresses resolvers servers ?
Others devices on your network home don’t have this trouble?
Can you try these tests:
Wifi test
Turn off Wifi and Mobile data connection
Turn on Airplane mode → Wait 5 seconds → turn off
Turn on Wifi
on Settings → About Phone → in IP addresses
What IPs addresses you have?
It can be difficult to troubleshoot an issue as you report it. Perhaps you could try some of these to see what might have a bearing on your issue.
Does your carrier offer 5G, are you using it. If yes you might experiment with switching it off from Settings > Network and internet > Mobile (carrier) > Preferred network type.
It is difficult to stay in Safe mode for an extended period; but you might try as long as possible. Press Power off button > Long press Power off icon > Select Safe mode.
This might help to identify if some third party app is responsible.
Looking at this possibility, now out of Safe mode, try Swipe down (as if to open notifications etc) and swipe down again. Do you see “Active apps”, any surprises there?
A setting which might help to separate whether mobile or Wi-Fi as the culprit is apparently only available with Developer options on [1]. Settings > System > Developer options > Mobile data always active.
If Wi-Fi is problematic, is it home Wi-Fi or all Wi-Fi (assuming you can test a few Wi-Fi).
Possibly relevant; what settings are you using in Advanced Privacy. Any change when you switch off all or some.
[1] If Developer options are not available; Settings > About Phone > Build Number or Version > Tap seven times on Build number > You will get a message that you are a Developer.
Apologies @dj0, I did not see that you had replied while I was writing!
Following an update to the latest E/OS version this morning, I’m also here trying to find a resolution to this problem.
Some apps simply will not connect to the internet as of today, whether via mobile data or wifi. Apps affected on my phone are Conversations (an XMPP client), Naked Browser (a web browser, also known as NBPro), Liftoff (a Lemmy client) and Whatsapp.
Following a reboot, the same apps seem to be working, although I wonder if this will recur.
I am running /e/OS 2.3-t on my Fairphone 4 and I am encountering the same problem since today :
Some apps get network, some apps don’t.
When it happened on Firefox, I tried disabling Encrypted DNS from the network settings, didn’t solve the issue.
The issue happens even without encrypted DNS. And I noticed on my DNS logs (I’m using NextDNS on both my Wi-Fi router in my DHCP server settings and on my phone via Encrypted DNS) that the DNS server doesn’t receive any request related to the app affected by the issue. It’s like it’s not even trying to resolve the hostnames. I don’t know though if it has direct IP connectivity (I didn’t think about trying that when Firefox wasn’t loading pages).
The issue is bothering because it randomly affects importnat apps like IMs, banking apps (that includes 3D Secure notifications which are not coming until a phone reboot…), or administrations 2FAs (e.g. French “identité numérique”).
At first sight it might look like Advanced Privacy, but that was already mentioned further up the thread.
There are two troubleshooting posts in this thread Post #6 and Post #7. It might be productive for you to work through those ideas and then try to relate your problem to your experience with those suggestions.
It seems that somehow the issue solved itself (or maybe the issue is still around for some apps I haven’t used since last reboot)…
I don’t really understand how it happened, as I tried in both Wi-Fi and cellular modes, I tried as well to switch on and off Plane mode, same for Advanced Privacy, and cache clearing affected apps didn’t solve the issue. Seems like rebooting several times did solve the issue so far, but I’m not sure how and why.
I could not check the IP address online as the web browser was affected. I didn’t think about checking in the phone settings, but I think the settings were fine as some other apps like YouTube or the default /e/ maps app were working.
All my daily life apps seem to work now
I’ll try to get more information if I face the issue again. Thank you for your reply!
