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After boot image has been downloaded, the HTTP boot driver leaves the service in the started state, with an active TCP child. This may cause some problems: 1. The HTTP session may become unavaiable after a while, then a following HTTP Boot will fail. 2. An active TCP child will send RST to any incoming TCP message, which may break other driver which tries to setup a TCP connection. The HTTP boot driver doesn't provide any interface to the boot loader, so it's unnecessary to keep the service running after a boot image is downloaded. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Fu Siyuan <siyuan.fu@intel.com> Reviewed-by: Ye Ting <ting.ye@intel.com> Reviewed-By: Wu Jiaxin <jiaxin.wu@intel.com>