On iOS 16 on iPhone 8 I can share web over WiFi, the place the cellphone creates a hotspot (apparently at all times utilizing 2.4 GHz). The cellphone serves IP addresses over DHCP together with setting itself (172.20.10.1/28) because the default route and DNS server on this community.
If I am not related to a separate WiFi community (in keeping with the Settings app) whereas shaing web to shoppers over 2.4 GHz, and subsequently try to hook up with a 5 GHz WiFi community, the cellphone warns me that shoppers of web sharing will disconnect if I proceed. Truthful sufficient — that is type of comprehensible. The bizarre factor is that if I’ve a 5 GHz WiFi community set as join robotically then I’ll at occasions discover myself related (? — in keeping with Settings) to that community whereas sharing web over 2.4 GHz concurrently.
Now, which is it? Can I be related to five GHz networks whereas sharing over 2.4, or cannot I? The state of affairs could be very ambiguous to me with these combined messages.
It is problematic to not know what is going on on, since if I occur to share web over 2.4 GHz to a router/AP that in flip bridges that to its personal 5 GHz community, and my cellphone connects to that 5 GHz community… Let’s simply say that the cellphone’s DHCP server seems to cease working correctly at that time, and this unclear habits would not make it simpler to troubleshoot.
The cellphone has separate and static IP handle on 5 GHz, and moreover no default route nor DNS, so at the very least taking a detour to its personal web connection by way of WiFi is not an issue.