Winsock error 11021
WSA_QOS_EFILTERCOUNT - Incorrect QOS filter count.
Basic (Microsoft) information for 11021 a.k.a. WSA_QOS_EFILTERCOUNT
An incorrect number of QOS FILTERSPECs were specified in the FLOWDESCRIPTOR.
Detailed (Berkeley) information for winsock 11021, described as "Incorrect QOS filter count."
Full list of Winsock Error codes
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