I did try everything you asked and here are the results.
At first this morning i had an error i never had, that the pure network service gave an error. I have no idea what this is ? Maybe you, there is a technical repport when you need it i will place it,
The suggestion for the SSl error didn't work, i still get the same messages on these sites.
i deleted Chrome in an earlier stage but tried it again after all the changes the last day, but it didnt change much. Unfortunally.
The first time i start chrome is the worst of all, is takes ages. it stands still, seems to crash, opens tabs on his own, disapears and shows again and after a period, could be 15 minutes it becomes some stability. And i a whole lot less ;-))
After that it get better, but still not fast en often seems likes it want to crash but re apears then.
I hope you still have any idea's in youre magic solution box
Miranda