This parameter specifies the TCP retransmission timeout, in milli-seconds, for CDRouter’s ACS. This functionality is present only CDRouter 6.3 and later releases. The ACS TCP retransmission behavior can also be disabled entirely by setting the testvar acsTcpRetransTimer to 0. This disables TCP retransmissions and returns the ACS TCP behavior to be the same as CDRouter 6.2 and previous releases. In some cases, using CDRouter’s TCP retransmission for ACS connections can result in slow downloads when the CPE frequently brings the TCP receive window to 0. In CDRouter 6.3 and newer releases, TCP retransmission behavior is enabled for the ACS with a value 5000 milli-seconds.