Sage 300 Web Screens getting hanged while posting transactions

Hi,

Sage 300 Web Screens getting hanged while posting transactions and some times it is taking more than 30 minutes and still not able to process the transactions and remains on posting transactions.

Secondly, when tried to post from another workstation it is working fine. the customer is using VPN connectivity to the server. the Sage is locally installed on workstation machines with ODBC connection to the server.