How to disable SackOpts (Selective Acknowledgements) in Windows 7

I am trying to figure out how to disable / toggle Selective Acknowledgements (SackOpts) in Windows 7?

Any ideas?
Who is Participating?
David Johnson, CD, MVPConnect With a Mentor OwnerCommented:
this tweak is for windows xp but should work
c-h-r-i-s-t-o-p-hAuthor Commented:
Thanks. We've tried this one already with no luck.

Unfortunately, the SackOpts key does not exist at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters in Windows Vista or Windows 7.

We did try to manually add the key and set it to '0' with no joy.
c-h-r-i-s-t-o-p-hAuthor Commented:
ended up using a windows xp machine to troubleshoot the issue
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.