Solution-1

Before restarting Set parameter

icm/server_port_0 = PROT=HTTP,PORT=1080,TIMEOUT=30,PROCTIMEOUT=600

for 10 mins of processing.

Restarting J2EE engine and ICM will help you.

Please take a look at SAP note 1044258.

Solution-2

run transaction SXMB_ADM………Click integration engine configuration……..choose parameter RUNTIME…….click on the edit button above……………….click on new entry button…….choose category – RUNTIME, parameter – HTTP_TIMEOUT, current value – 600 and then save it………….

re-run your scanario………..now your Connection timed out error should be removed.

Solution-3

for this session timeout error,
you can try this one.This way you can increase your session time as per your need.

go to server.
path for visual admin generally,
my computer – user – sap – sc…-j2ee -admin -got.bat
then,
admin->go.bat.connect->server->services->web connector ->change time->save->restart that process only.

Solution-4

you can try increasing the HTTP_TIMEOUT of the Integration Engine:

a) go to TCODE – SXMB_ADM

b) Integration Engine Configuration

c) Change specific configuration

d) Increase the HTTP_TIMEOUT parameter value – this value depends on your specific needs
the picture below is only for demonstration purposes and it does not present the recommended valuec