Carbon Black Cloud: Multiple errors "ERROR CldApiSendBulkCloudMsg: CBulkUploadMsgObj::Send error 25" in application event log (Event ID 49)

Products

• Carbon Black Cloud Endpoint Standard (formerly Cb Defense)
• Carbon Black Cloud Enterprise EDR (formerly Cb Threathunter)

Issue/Introduction

Multiple errors 

ERROR CldApiSendBulkCloudMsg: CBulkUploadMsgObj::Send error 25

in the Windows Application event log (Event ID 49)

Environment

• Carbon Black Cloud (formerly CB Defense PSC): 3.5.0.1523
• Carbon Black Cloud Console: Jan '20 Release (0.52)

Cause

Known issue (EA-15730/DSER-21806)

Resolution

Issue resolved with Carbon Black Cloud sensor 3.5.0.1627 and later