Issue: Dropping Connections in Data Mode - Prometheus External Modem

Symptom:

The external 288 modems loses it's online connection at random intervals. After being online anywhere from 30 seconds to over one hour, the modem hangs up the phone line with no warning.

Resolution:

There are several explanations for this particular symptom. The possible causes include:

1.Incorrect init string

2.Wrong modem cable

3.Noisy phone lines

4.ISP hanging up due to inactivity timeout

5.Modem failure. Needs to be sent in for repair

The steps for troubleshooting this problem follow: 1.Verify init string and configuration.

AT&F&C1&D0 \Q3 INIT STRING TO USE

CTS & RTS (DTR) FLOW CONTROL SETTING

57600 BPS PORT SPEED SETTING
2.Use the cable that came with the modem
3.Lower port speed setting to 19200 or 9600 to test. If the symptom goes away, problem may be due to noisy phone lines. Contact your local exchange to have lines checked.

If symptom continues at the end of these steps, then the likely cause of the symptom is the modem. Contact Prometheus for a repair authorization number.

Try this link for more info on Proetheus http://www.prometheusproducts.com/FAQ.HTM