Samsung S23 Ultra losing connection and will not reconnect.

[Ofelas]

Hello,

I really hope someone can help! I'm struggling with my O2 connection for the last month.

I had a Samsung Note 10+ on O2 with a 4G Unlimited Date Pay Monthly contract.

My phone began displaying the message "not registered on network" and losing its connection, despite showing it had a signal available.

I went in to an O2 shop and they changed my SIM card, giving me a 5G enabled one. Nothing changed. My phone would disconnect from the network and would not reconnect with out restarting it.

I began to think my phone was faulty so, being over due and upgrade, I got a new Samsung S23 Ultra. I put my SIM in and initally the phone worked fine, but it then started to do exactly the same. It works perfectly on WiFi but when out and about, it loses connection and will not reconnect unless I restart my phone or put it in Airplane mode then off again. It then reconnects and I get a 4g or 5g signal.

This can last 5 minutes or 30 minutes but it loses connection and will not reconnect. I phoned O2 and they have had me rest my APN and try the various APN settings available. The same happens with them all.

It's especially noticeable if I am driving and stremaing Amazon Music. If i drive through a no signal area, the phone disconnects and will not reconnect.

Please help me. I'm getting so frustrated with this, to the point I'm considering trying another network.

Thank you!

[madasaf1sh]

@Ofelas 

Full details on how to cancel are here Guide: Cancelling Your Contract 

Have a look at these guides and see if they help Guide: How can I sort out my network issues? Guide: How can I sort out my network issues? 

You’ll need someone to access your account which can’t be done from here. if you send them a message on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG), or you can call 202 from your o2 phone

[Ofelas]

Thank you for replying.

Unfortunately I have tried all of those suggestions and none work.

I have read in another post that it appears to be a more common problem with O2 and the S23 Firmware.

[MI5]

@Ofelas 

There have been numerous posts about this. 

You need to report it to O2 on the off chance they might do something to investigate the issue.

[Ofelas]

Thank you.

Any suggestions as to best way to report it? Not sure 202 will understand.

[MI5]

@Ofelas 

You can try them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) 

@Chris_K also has input into firmware testing.

[Ofelas · Accepted solution]

Finally got a solution.

Got O2 to disconnect then reconnect my number from the network.

Inconvenient, but it seems to have worked!