Apple iphone series phones are mostly having problems with internet protocol.

Question

Apple iphone series phones are mostly having problems with internet protocol. It pretends to be buying a fixed rope. Dhcp search fields appear domain.name.In this case the internet can not be entered. It gets better after a while.

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BAlfson · Answer

Is the second picture also of the "Ofis" SSID? It looks like you have two different DHCP servers. In both cases, the IP assigned is the same one so this must be a static assignment. You should eliminate the DHCP Server that is for static mappings only. Make Static IP assignments outside of the dynamic range of the DHCP server. 
 Cheers - Bob

Apple iphone series phones are mostly having problems with internet protocol.

Submitted a Tech Support Case lately from the Support Portal?