Event ID - 120

Event Id120
SourceWebProxyServer
DescriptionThe proxy service could not create a packet filter
Event InformationAccording to Microsoft
This event occurs when more than 20 packets are filtered by a Proxy Server packet filter rule. 20 of these events in the packet filter log trigger event ID 120.
You see Pfxxxxxx.log files, where xxxxxx is the date of the log file, in the Packet Filter logs located in the %SystemRoot%\System32\Msplogs folder.
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