Skip to main content
Warum O2
Warenkorb
 Service
Frage

Unable to use mobile data

  • May 19, 2026
  • 1 Antwort
  • 27 Aufrufe
B
Besucher:in

Hello,

this morning I upgraded my phone plan to one with monthly data, before this I have not used my o2 plan with data as I have another carrier for this. If I change over to the eSIM for o2 to use that one for cellular data nothing works. Browser says “Not connected to internet”, all apps show “No internet connection”.

 

I have tried to restart my phone twice within the span of 10 hours and reset the SIM details in settings as mentioned in the troubleshooting guide - nothing seems to solve the problem.

    1 Antwort

    o2_Gerrit
    • o2_GerritModerator
    • Moderator
    • May 22, 2026

    Hello ​@brukernavnvaropptatt,

    welcome to our o2 Community 🙂

    That is not so nice, that you cannot use mobile data with your new data plan with us.

    Have you checked the APN settings in your phone via Settings > Connections (or Mobile Data) > Mobile Networks > Access Point Names? The APN has to be on: internet.

    It could also be a disturbance of our network, this you can check for your address via our live check.

    Best Regards,

    Gerrit

    Allgemeine Nutzungsbedingungen der O₂ CommunityAccessibility statement
    © Telefónica Germany GmbH & Co. OHG Telefónica