I can't connect to the network with my new asus zenfone 11 ultra

[PavelAnt]

I recently received an Asus Zenfone 11 ultra phone. Unfortunately, for some reason the phone does not connect to the network. When I try to do the same with an old phone, everything works. This means that the problem is not with the SIM card. Does anyone know how to solve the problem?

[johndirect]

When a new phone, like the Asus Zenfone 11 Ultra, doesn't connect to the network while an old phone with the same SIM card works fine, it suggests that the issue lies with the phone or its settings rather than the SIM card or network provider.