Mobile data connection breaks after few minutes using dual SIM

Could you give some background?
Do you have two SIMs?
Does the mobile data connection work better in some areas?
How long have you

  • had the phone
  • been using your current provider
  • been using your phone in current areas
  • been experiencing your current problems
  • been using current SIM or eSIM (which)
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One more FP4 with exactly the same issue as described above.

It started a few days ago. I thought it was connected to an update of the Android Auto of my new car, but I think that is weird. Issue: exclamation marks and offline mode although 5G symbol is there. No APN reset or going to 3G or 4G would work.

I just tried the workaround of disabling the eSIM and seems to be working normal with just the physical SIM card. Not ideal but okay for now. I also reported the issue to customer service with no reply yet.

Sounds like everyone here has a completely different problem–with the same symptoms…
I for one have no problem with dual SIMs (and 5G). Everything works as expected. :man_shrugging:

Why am I telling you this? I think the only possible explanation is provider idiosyncrasies and interactions.
You should collate which provider combos do create problems, and which not. Maybe you will detect a pattern.

For myself:

eSIM: **Orange FR**, data on, 5G on
SIM: **Vodaphone DE**, data disabled, no 5G in plan
   **No problems**
1 Like

Hi all,

I’m having issues with my network connection as well. Made a post a fews ago but I just found this one.

I also have a dual SIM, and I lose network connection when I’m not connected to the WiFi. While having WiFi I can receive and make calls (with the ā€œWiFi callsā€ setting OFF) but as soon as I turn the wifi off, no more signal and no more internet of course. I don’t see any difference using 5G or 4G or 3G/2G. The issue is still there. Sometimes I see some signal for 2seconds and it’s gone again.

I contacted the costumer service and they are looking into it. But I don’t know how long it will take…

I see this post started in Jan24. Did anyone get the connectivity issue properly fixed?

No fix yet. Support hasn’t answered in a while after stating they’re investigating it.

2 Likes

After several emails and months with the support on this topic, they gave up (with me) on this issue and offered me a discount code on the new FP6.

Just a small annotation, that this problem might never get fixed.

Wow that sounds disappointing and no so much in line with the values I would expect from this brand… I have been happy with the FP4 last 3 years but this kind of things might make me reconsider.

For me, it none of the SIMs with 4G or less. They only work if I am connected to the wifi

it’s very disappointing tbh

I may have found a preliminary solution: disabling the setting for the physical sim to automatically choose a network. Instead: simply choose the own network and thus the setting for Automatic is toggled off.

Downside: if you’re abroad it may not work as intended and within your country in case of very bad reception the home country roaming within other providers’ networks is disabled.

Upside: it works so far well while commuting.

Note: not tested on high speed railway (200km/h) yet.

Perhaps someone else can confirm whether this works for others too?

I wonder if its not relevant if physical or eSIM and rather the provider, so which provider is it for you?

Seems not the provider since if only one sim is enabled there aren’t any problems.

Telekom and Magenta/TMobile

Do you have the settings for automatically choose network for the physical sim on or off? (See latest post with preliminary solution further down).

That didn’t work for me (fraenk eSim, Vodafone physical SIM).

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Hmm I see.

Maybe I was then just lucky today or it’s my provider combo. On a train it’s usually worst so further testing for me needed.

Perhaps it’s a combination of provider combos and settings. Interestingly it started exactly a year ago with that ages ago stated FP OS Update back then.
Meaning: either it’s due to that OS Update, a Network update by the providers back then or both.

Strange…

For me its still this

So for you your work around works when you disable it for the Telekom however when @maalik tested it with physical SIM= Vodafone…

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No, I disabled the automatic search for magenta/TMobile.

Telekom esim is on 5g and used for internet, SMS, calling … Roaming enabled

Magenta/TMobile is physical and now not searching for networks automatically. Roaming disabled, data disabled. 2g/3g only.

Both SIMs are on the default automatic network setting (of course also roaming, 5G, etc.).
The only thing I’ve changed is that only one SIM (the eSIM, which is my main one) uses mobile data. The physical one (private number) does not use data.

(As I’ve probably already said earlier, eSIM = Orange FR, SIM = Vodafone DE.)

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Ok sorry. I’ve been lucky and this still happens now.

So this is no solution unfortunately.

Already informed support about it.

Just wanted to say: it didn’t work for me when I was trying it out yeseterday..
:smiling_face_with_tear:

I am now back to my work-around (living in NL):
physical SIM (KPN) without restrictions;
eSIM (spusu AT in vodafone NL network) with 2G/3G, no mobile data, no roaming, automatic network selection [I only need this eSIM to receive phone calls and SMS]

1 Like