142 Rockwell Automation Publication 1783-UM003G-EN-P - December 2012
Chapter 5 Troubleshoot the Switch
Device Manager Web Interface Issues
Issue Resolution
Device Manager Web interface does not display If you cannot display the Device Manager Web interface from your computer or laptop, make sure that
you entered the correct switch IP address in the browser.
If you entered the correct switch IP address in the browser, make sure that the switch and your
computer or laptop are in the same network or subnetwork. For example:
·If your switch IP address is 172.20.20.85 and your computer or laptop IP address is 172.20.20.84,
both devices are in the same network.
·If your switch IP address is 172.20.20.85 and your computer or laptop IP address is 10.0.0.2, the
devices are in different networks and cannot directly communicate without a router. You must
either change the switch IP address or change the computer or laptop IP address.
·If the issue persists, follow the procedure in the Access Direct Managed Mode
section on page
144, and then update the switch network settings on the device manager Express Setup window.
·If the issue still persists, follow the procedure in the Recover the Switch Firmware and Restore
Factory Defaults section on page 147.
Device Manager Web interface is not operating
properly
If the Device Manager Web interface does not operate properly (for instance, the device manager is
not responding), follow the procedure in the Access Direct Managed Mode section on page 144, and
then update the switch network settings on the Device Manager Web interface Express Setup
window.
If the issue persists, follow the procedure in the Recover the Switch Firmware and Restore Factory
Defaults section on page 147.
Device Manager Web interface is not accessible
through the network
If you cannot access the device manager remotely from a Web browser, follow the procedure in the
Access Direct Managed Mode section on page 144.
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