Hi MeiJing
Here is a support article with some tips on that error: https://customer.precisely.com/s/article/Troubleshooting-Steps-SAP-IS-Server-SAP-GUI-time-Out-errors-4406578206363?language=en_US
There are other support articles, as well - you can search at support.precisely.com.
If it doesn't help, I suggest you open a support ticket, so that someone can help you.
Best Regards,
Sigrid
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