Can someone explain why the SoftwareDistribution.log contains LOTS of the following? It's a 2012R2 server (WSUS 6.3).
2018-07-19 14:20:07.951 UTCWarningw3wp.64SoapUtilities.CreateExceptionThrowException: actor = http://abc.def.com/ClientWebService/client.asmx, ID=a5f9f6b4-d9d6-4c24-8373-8a5af08d2e51, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=745c15db-ae4d-4a97-b07d-2aeb2a661c9c2018-07-19 14:20:08.342 UTCWarningw3wp.14DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=61CCD276-E0DB-4A52-9B02-6AB0BD7608BD, ComputerID=e6c111dc-4b98-4b40-8739-e2b53568bd80. Invalid ComputerID.
2018-07-19 14:20:53.474 UTCInfow3wp.38ThreadEntryThreadPoolWorkQueue.Dispatch
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=8AE3965E-1E84-4084-BD64-E6666DF873D4, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=CC4B9435-46DB-41AE-A7D2-80A33DFD67B8, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=7F7B2B6C-AAF6-4A3D-9BEE-8C4DA726F62B, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=13E33006-D339-4811-8916-03619C8D7E4F, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=5DF760F6-7A81-4EEF-AFEB-787F0084952B, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:20:53.474 UTCWarningw3wp.38DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=3AFDE1E2-E81B-49F4-BC00-394609DA4A7A, ComputerID=8c33da97-828b-49b0-a5a5-14e8a4ab18e6. Invalid EventID.
2018-07-19 14:21:11.639 UTCInfow3wp.45ThreadEntryThreadPoolWorkQueue.Dispatch
2018-07-19 14:21:11.639 UTCWarningw3wp.45DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=0AE93E70-BFEE-4E6C-BE26-5068E8A1F220, ComputerID=851dd80e-0f44-4b81-8eac-ce277830d785. Invalid ComputerID.
2018-07-19 14:22:20.534 UTCInfow3wp.70ThreadEntryThreadPoolWorkQueue.Dispatch
2018-07-19 14:22:20.547 UTCWarningw3wp.70SoapUtilities.CreateExceptionThrowException: actor = http://abcdefgh.abcdefghijklmnopqrst.com/ClientWebService/client.asmx, ID=c2652b1b-8446-4566-b9bb-319e95d955a9, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=eb364ad5-9917-486f-b384-4bb6143e9a1a
2018-07-19 14:23:00.293 UTCInfow3wp.70ThreadEntryThreadPoolWorkQueue.Dispatch
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=5EB7B7B0-4C48-484C-8F1A-E7ED157FFE8F, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=84C98A29-ED0A-49E0-9984-EA621707A8AA, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=BAACFE24-97E9-48A0-9C71-47C61732A155, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=6C317CF6-6762-4717-872F-E431F493B3A6, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=393E790C-1100-44CB-A6D1-49D0221C66A8, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:23:00.293 UTCWarningw3wp.70DBConnection.OnReceivingInfoMessageInvalid event dropped. EventInstanceID=83539A8D-9F7D-4C1E-B62D-1B205B934A44, ComputerID=e1a848d8-3a13-4d43-b046-4f8f9fefb11d. Invalid EventID.
2018-07-19 14:24:27.872 UTCWarningw3wp.70SoapUtilities.CreateExceptionThrowException: actor = http://abcdefgh.abcdefghijklmnopqrst.com/ClientWebService/client.asmx, ID=75b04e7e-48ef-454c-afdd-58901e9f8c7e, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=dc9b1362-b762-4164-a6db-2b5d39a73e1e
2018-07-19 14:24:37.456 UTCInfow3wp.29ThreadEntryThreadPoolWorkQueue.Dispatch
2018-07-19 14:24:37.456 UTCWarningw3wp.29SoapUtilities.CreateExceptionThrowException: actor = http://abcdefgh.abcdefghijklmnopqrst.com/ClientWebService/client.asmx, ID=298d3f1b-2752-4b23-9bbd-809ac39a2e68, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=efea89c8-8cae-4ba3-8987-77deb73d7758
2018-07-19 14:24:39.779 UTCWarningw3wp.29SoapUtilities.CreateExceptionThrowException: actor = http://abcdefgh.abcdefghijklmnopqrst.com/ClientWebService/client.asmx, ID=930ef389-ae0a-4da9-a496-e83be06171af, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=efea89c8-8cae-4ba3-8987-77deb73d7758
2018-07-19 14:24:42.159 UTCWarningw3wp.70SoapUtilities.CreateExceptionThrowException: actor = http://abcdefgh.abcdefghijklmnopqrst.com/ClientWebService/client.asmx, ID=72f312c1-44a5-44ca-a279-48985a9d6361, ErrorCode=RegistrationRequired, Message=need to call RegisterComputer., Client=efea89c8-8cae-4ba3-8987-77deb73d7758