Hi, has anyone experienced this problem: When I leave my Wifi area, and the phone thus disconnects from Wifi, it does not connect to the mobile internet. This seems to happen almost every time I leave my home Wifi. I first noticed this problem after the software update to FP5.UT2L.B.107.20250218 a week or two ago. Switching airplane mode on and off again fixes the problem every time.
More detail: Fairphone 5 with the latest updates, mobile carrier is DNA with 5G enabled. This isn’t the same issue as After leaving wifi there is no mobile data - reboot is necessary (because that one depended on VPN; there’s no VPN on my phone). It could be the same issue as Phone doesn't connect to mobile data after leaving home wifi, and for information, when I check the Developer mode, the switch for “Always keep mobile data active” is on. I don’t want to change developer-only settings without clear guidance from a developer, though.
I have contacted Fairphone support about this (they have a backlog of 16-18 days) and will post here if I find a solution. Thanks.
Hi, I have noticed the exact problem, happened three times for the past couple of days. And I have the exact same mobile carrier as well.
First thought was that it’s because of my phone but just heard that few of my colleagues were having the same issue with DNA (not all of them having Fairphone), so it might be also the mobile carrier side issue.
I’ll drop the DNA helpdesk a message, too. Thanks for the advice!
Edit: I spoke with the DNA helpdesk and technical service - they both think it’s not their problem. I could test if it works with the SIM card in another device, and maybe I will, but it sounds more like a device or settings problem to me.
Same problem, when i drive from home with a map, i fuel my car (so switch off) it does not reconnect again?? I will try the flight mode hack next time. I have a FP5.
No reply from Fairphone customer support yet. The recent system update (FP5.UT2M.B.113.20250319) hasn’t fixed this issue.
Actually, I think this is not related to the Wifi at all because I’ve had the 5G mobile connection disconnect a few times when I was not near my home Wifi (or other "known Wifi"s).
A better workaround than switching airplane mode on/off is actually to switch the SIM off/on. (Click on Settings, Network & Internet, then Internet, then the settings icon to the right of the mobile operator name, there “Use SIM” → switch it off, wait a few seconds, switch it on again.) Usually this gets me back online.
Hi there. I’m the writer of the other (english/german) post.
Since I switched to the 4G settings, all works fine. No connection losses since a couple of days now. Looks to me like the problem stands in relation with the 5G settings or the net (frequencies).
It’s not solved, but at least it works like this for the moment.
I can confirm that this seems to be an issue with 5G mobile, and had nothing to with the wifi. It’s just that you notice there’s something wrong with the 5G when you leave the wifi.
So, the best workaround is to switch the preferred networks to 4G/3G/…, instead of allowing 5G. But I don’t know what’s the problem with the 5G, is it software or is it some faulty phone component?
Still no reply from Fairphone customer service.
Funny enough, after a week with only 4G/3G/…-settings, I switched back to 5G 4 days ago. No problem with losing connection since then! It seems to work just fine again…