What is the appropriate authentication type for continuously connected apps?

I recently implemented a wireless solution using 1240AGs, 4425 controllers and WLC.

I?m testing intermec CK31 handhelds connected to an oracle telnet based WMS.

I have WPA2+AES and PEAP authentication enabled.

When the handhelds roam from one AP to the next, it appears to be re-authenticating. This causes the connection and IP to drop and re-establish just slow enough to cause problems with maintaining a session the oracle WMS.

I can see the units re-authenticating in the ACS logs.

Any help or discussion would be appreciated.