There is nothing like making a statement of intent to do something. By 6.00 or so this evening I'd just about moved out of the old laptop and onto the new one.
The knowledgeable novice monk in Berkeley told me about the three R's for network managing.
1. Right click. A much under used facility which I've used a lot to-day.
2. Re Boot. Often seems to be a solution for so many difficulties.
3. Relax! Sometimes all the computer, or network, needs is time to sort itself out. Latter it will work. Probably.