Troubleshooting Guide

3-5

Intermittent disconnects, high error rates, or excessive retransmissions

Perform a remote digital loop test as described in the AccessBuilder 7000 AT Command Reference.

Modem establishes and disconnects a call

You may have a poor telephone line connection. Disconnect and dial again.

The remote modem may have encountered an error correction disconnect, where the modem is configured to establish a call using error correction. If the modem cannot negotiate error correction, then a disconnect occurs.

The remote modem may be in a forced error correction mode (disconnect if there is no error control). Reconfigure your modem to V.42/MNP or buffer correction and try again.

Perform a local analogue loop test.

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3Com 980/000048/001 manual Perform a local analogue loop test