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1986796 - Synchronization fails with communication error: 406 and ml-session-id changed - SMP


The Mobile Business Objects (MBO) synchronization using an Apache Reverse Proxy directly to SAP Mobile Platform (SMP) fails with the following errors in the MobiLink log (mlsrv_err.log) and SMP server log:

  • SUPSynchronizeException: Sync failed: -1305 (MOBILINK_COMMUNICATIONS_ERROR) %1:86 %2:406 %3:0;Parameter 1:86;Parameter 2:406;Parameter 3:0
  • SUPSynchronizeException, SUPSynchronizeException: Sync failed: -1305 (MOBILINK_COMMUNICATIONS_ERROR) %1:86 %2:404 %3:0;Parameter 1:86;Parameter 2:404;Parameter 3:0

  • Stream Error: ml-session-id changed from XX to YY"



  • Windows 2008 R2
  • SAP Mobile Platform 2.3 SP03
  • Apache Reverse Proxy
  • iOS 7 device


SAP Mobile Platform 2.3 ; SAP Solution Manager 7.1 ; Sybase Unwired Platform 2.0 ; Sybase Unwired Platform 2.1 ; Sybase Unwired Platform 2.2


MOBILINK_COMMUNICATIONS_ERROR, Mobilink, 404, 406, Unknown_session, Apache, ReverseProxy, Reverse, Proxy, disablereuse, persistent, httpd.conf, KeepAlive, , KBA , MOB-SUP-MBO , Sybase MBO Development , Problem

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