My iPhone has been getting more and more difficult to set up as a hotspot. I ignored the advice on Apple to reset the network setting and went to ATT chat. Daniel walked me through several things, but I couldn’t do any of them without breaking the connection to my MacBook Air which was linked to AT&T via a hotspot.
I did follow his advice to reset network settings, and I am back to quick connection to the hotspot.
After I had things working my wife mentioned defragging, a term from our bad old days on mainframes. Periodically we would have to move pieces in memory around to have enough big pieces to do what needed to be done. We never thought of Powder Milk Biscuits to give us the strength to do what needs to be done.
With more and more storage on our devices, it is easy to forget about the problem of fragmentation of memory. As the pieces of memory get smaller, it takes longer to put together larger pieces. In "ancient" history, 64KB was a lot of memory. Now with 64GB we assume we will never run out of memory. Surprise!