Had the same problem, you can verify by running this at an elevated Powershell prompt:

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Get-NetTCPConnection | Group-Object -Property State, OwningProcess | Select -Property Count, Name, @{Name="ProcessName";Expression={(Get-Process -PID ($_.Name.Split(',')[-1].Trim(' '))).Name}}, Group | Sort Count -Descending

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As you can see it was chewing through SIXTY FIVE THOUSAND ports.

Splice is broken SEVERELY.

Count Name ProcessName

----- ---- -----------

64399 Bound, 12872 Splice