Sets how many ICMP ping attempts SSG makes before concluding that a subscriber's host is actually unreachable and eligible for auto-logoff. This absorbs single dropped pings on lossy access links so a subscriber isn't logged off because of one lost probe; too low and a flaky Wi-Fi link causes spurious logoffs, too high and a genuinely dead host stays 'active' (and billed) longer. On a wireless last-mile network with occasional packet loss, an admin would raise cssgCfgAutoLogOffIcmpRetries from the default to 5 so a couple of lost pings don't wrongly log off a still-connected subscriber.