Solution : https://service.sap.com/sap/support/notes/421467 (SAP Service marketplace login required)
Key words : 
dev_icm unnecessary ssl error texts, low-speed data link blocking, icm/wp_roll_timeout profile parameter = <duration, low-speed modem link, exe/icmbnd url rewriting, stateful sessions automatic resetting, unnecessary trace file entries, processed unauthorized error traces, deleted http log handler, kernel patch level 11ii
Related Notes : 
       
| 487021 | |
| 481972 | |
| 459208 | CST Patch Collection 51 2001 |