When gateway (Hub, Switch or any other internetwork device…), between client and server, was suddenly down then server does not recognize that connection was lost.
Messages which, have been sent to recipients on other side of not closed connection, will be lost.
Nobody will receive messages, no one of messages will be stored offline.
Connection can stay opened from several tens seconds till several days.
At this moment server running under Windows XP,
Please, give me advice how to decrease loss-recognition time down to several minutes or less?
PS: In despair I have recustomized parameters IP (KeepAliveTime, EnableDeadGWDetect, TcpTimedWaitDelay) at windows registry, but it has not helped