Java program waits 30 seconds in SELW status

Hello All,

We have an AS/400 Java program that binds to a TCP port and waits for data
to come through.  When running on our AS/400, when the data is received, the
program immediately executes the next lines of code, processes the data, and
returns to wait on that port.  However, on a customer's AS/400, the program
goes into a SELW status after it receives the data and waits there (using no
CPU) for 30 seconds before processing the data successfully.

Can anyone suggest why the two machines would act so differently?  Both are
V4R5, using Toolbox 4.5 Mod 0.3, and JDK 1.1.8.  Our older model 40S does
not exhibit this behavior while the customer's 270 does.

Thanks in advance for any suggestions!

Kendall Coolidge