dwdf010.wdf.sap-ag.de, service: 1090 failed (NIEHOST_UNKNOWN)

Hello,

we have an odd phenomen in our ICM Trace. (APAP Single Stack System)

[Thr 2314] *** WARNING => Connection request from (0/1/0) to host: dwdf010.wdf.sap-ag.de, service: 1090 failed (NIEHOST_UNKNOWN)
 {0001dea6} [icxxconn_mt.c 2321]                                                                                
[Thr 772] *** WARNING => Connection request from (0/1/0) to host: dwdf010.wdf.sap-ag.de, service: 1090 failed (NIEHOST_UNKNOWN) 
 {0001dea7} [icxxconn_mt.c 2321]                                                                                
[Thr 2828] *** WARNING => Connection request from (0/1/0) to host: dwdf010.wdf.sap-ag.de, service: 1090 failed (NIEHOST_UNKNOWN)
 {0001dea8} [icxxconn_mt.c 2321]                                                                                
[Thr 1543] *** WARNING => Connection request from (0/1/0) to host: http, service: 80 failed (NIEHOST_UNKNOWN)                   
 {0001dea9} [icxxconn_mt.c 2321]                                                                                
[Thr 1800] *** WARNING => Connection request from (0/1/0) to host: http, service: 80 failed (NIEHOST_UNKNOWN)                   

I know the host dwdf010.wdf.sap-ag.de is the DynamicHelpServer. But we have only local Help customized in TAC SR13.

Where is this host customized? And why the System will connect him?

Any help will be helpful. Thx.