3573631 - "Unknown server property 'HttpChunkSize'" error when starting SUM GUI in browser

• Software Update Manager(SUM) does not load when started in browser.

Error:

Internal server Error
Operation [0050560434091EDFBBD12532FB98E746] terminated with errors : 127 ()

Description: OS command
 FATAL ERROR: Unknown server property 'HttpChunkSize'
 HTTP server exits with 10.
Exitcode:10

• sapstartsrv.log

[Thr 140104923072256] *** ERROR => Operation::ExecuteNextCommand(): Command OS Command terminated with errorcode 10 [Operation.cp 357]
[Thr 140104923072256] Output of command OS Command -->
[Thr 140104923072256]   
[Thr 140104923072256]   FATAL ERROR: Unknown server property 'HttpChunkSize'
[Thr 140104923072256]   HTTP server exits with 10.
[Thr 140104923072256] <-- Output of command OS Command
[Thr 140104923072256] *** ERROR => Operation Worker Thread[id=0050560434091EDFBBD12532FB98E746]: Command execution failed [Operation.cp 503]
[Thr 140104807663360] *** ERROR => Error: sock 27; error 111 (Connection refused)
 (111: Connection refused) [sixx.cpp     127]
[Thr 140104807663360] *** ERROR => Connection failed [Communicatio 302]

• Software Update Manager(SUM)
• SAP Host Agent
• SAP NetWeaver AS ABAP

HttpChunkSize, terminated with errors, 127, SUM, GUI, HTTP server exits with 10, Software Update Manager, Upgrade, update, SAP Host agent, hostagent, browser, Error: sock 27, error 111, Connection refused, Operation::ExecuteNextCommand(), Command OS Command terminated with errorcode 10 , KBA , BC-UPG-TLS-TLA , Upgrade tools for ABAP , Problem