1

I'm trying to set up a hotspot, sharing the connection from an iPhone X running iOS 12.1 with a MacBook Pro running macOS Mojave. The hotspot is working fine and other devices can connect to it and use the internet, but although the MacBook connects to the hotspot OK, browsers don't work.

The MacBook can ping the DNS server set by the phone's DHCP, and other servers, but lookup fails (dig, nslookup or the network utility tool), and all browsers report that there is no internet connection.

I've tried going through the answers to this question but nothing seems to have made any difference.

Both devices have been restarted multiple times, and I've reset the phone's network settings.

2

After hours of experimenting, and a long and pointless call to my network operator, I finally managed to fix it... by deleting the phone from the list of known wifi networks on the MacBook, and reconnecting. Same SSID, same password, now working fine.

I recently switched SIM, moving to a new carrier. With the old carrier, the MacBook could use the phone's hotspot with no problem. I don't know what info gets stored for a wifi connection (I'd assumed just SSID and credentials) but presumably there's more to it...

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