These cameras enforce an absolute session lifetime (~30 min) that keepAlive
cannot extend, so a periodic keepAlive failure followed by re-authentication is
normal, not an error. Log the (re-)login at Debug instead of Info so it no
longer spams the logs every ~30 min, and raise the requested keepAlive timeout
from 20s to 60s so it comfortably exceeds the daemon's 30s ping interval.
refs #4875
4b0e16b782