Hello Experts.
One eNB has no congestion, UE connects to this eNB but can not send Whatsapp messages.
So it activates and deactivates airplane mode and after that it can send messages.
What can be happening?
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Is the UE using the right APN?
A similar thing happened before to me, and the root cause was wrong APN, for some reason the terminal chose an old APN ( wap.xxxxxxx instead of 4G.xxxxx)
Is it a massive problem or just one user?
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No, it is an exclusive UE (special customer).
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Try to include core team in this issue
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