esim S20 ultra mobile data lost frequently - proximus

[Negruj]

Hello, 

Since one week I am using a Proximus eSim. 

As of that moment issues with my data connectivity started to happen. 

My main Sim is the esim. I use it for data. I also have a second fysical Sim for a second number (not using for data).

Now I notice that I have no data connection when waking up the phone at random moments although I have full 4g LTE reception. After a minute or so it starts working.

I also notice it when I suddenly receive 15 notifications at once (after a time offline without knowing).

This is sooo annoying. Seems like a problem with the esim. Seems like it goes into sleep mode (I know it won't be this but it feels like that).

Any suggestions? 

Kind regards 

[GreyMatter]

talk to your network service provider. this is a problem with their service or their provided sim card and not your handset

[Mitzzz999]

agree with greymatter. esims are like physical sims... they can go wrong and need to be refreshed. contact network.

[Negruj]

Stupid me. 

I didn't recall I installed the android 11/ui3 update overnight last weekend. As I come to think of it... It is the exact moment I started noticing the problems.

I was using the esim a few days earlier without problems so in hindsight it should be the update. 

Reset connection setting and wiped cache partition, but that didn't help. I'll probably need a factory reset. 

[Mitzzz999]

if its still not fixed contact your network still.

[Negruj]

Received new esim and activated that one. 

Problem still persists after factory reset and new eSim. Mobile provider doesnt notice anything wrong at their end.

So it's a problem with Android 11 or hardware. So typical.

[Negruj]

To give everyone an update. 

Problem could not be fixed. Had to return to fysical Sim. 

Tried:

Reset network settings

Factory reset

New eSim

Checkup of settings by network provider at their end

Nothing worked. Seems to be a flaw somewhere since Android 11/ui3 or at provider? 

[ionm]

I have exactly same problem with Galaxy S20 Ultra 512GB

[Negruj]

Also Proximus or another provider?

[ionm]

I have 2 Galaxy S20 ultra 5G SM-G988B/DS and I had configured  in mars 2020 E-SIM on both phones.

Everything was fine from mars 2020 until 09.12.2020 when Android 11 UI 3.0 was installed and I lost Internet GSM access on both phones the same day.

On one of my phones my provider "Sunrise Switzerland" send me a nano SIM to replace E-SIM and now everything is again OK, but because I use a second nano SIM, now my 2 slots are full and I have no more place for my MicroSD card in this phone. The second phone still has no Internet Access except when I am at less than 50 meters from a GSM antena. When the signal strength is Exceptionally strong, I have Internet access but when I am at more than 50 meters from the Sunrise Switzerland GSM antena, Internet  is gone. 

When I am at 60 meter (or more) from a very visible antena on a building near my house it is impossible to have Internet with ESIM with my provider who is Sunrise Switzerland.

Even if I cannot connect to an my Sunrise Switzerland provider Antena who is at 60 meter from my phone, I can connect perfectly to "Orange France" at about 12 Km distance with the  Same E-SIM. Fortunately there is no extra cost for the roaming for me.  Very strange situation.

That means, same phone, same E-SIM, same place only choosing manually the "Orange French" provider instead of Sunrise Swiss" provider give me the access. 

I already done everything that was proposed here, without success.

I phone to Samsung Switzerland who recommend me to send the phones to where I buy it.

I am not happy to replace E-SIM with nano SIM because I buy these 2 phones also for this functionality.