In SAP 9.2 PL09 Most of the time we login SAP through browser access but its closed due to session timeout
Do changes in server file for timeout session.
path:>C:\Program Files (x86)\SAP\SAP Business One BAS GateKeeper\tomcat\conf
In the server, text file made changes in both place Connection timeout in Sec.
Hope your issue resolved.
Regards,
Tejas P