The wait between attempts started at 1 s again when the broker accepted the
session, so a session that was closed right after it opened (two boards with
one client id) came back every 2 s without end. It now starts again only
after a session that lasted 60 s; across shorter ones it keeps doubling.
An attempt given up after 30 s prints "the broker did not answer within
30 s", and loss of Wi-Fi prints "Wi-Fi is down, waiting for it" once per loss.
setServer(host, port) before begin() names another broker; the host is not
copied. basicLight: static RAM 30,616 B (+16), flash 333,701 B (+264);
91 host tests (bridge logic 50).
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>