Hello...
Something is inconsistent here. Possible workarounds I would try include:
Workaround 1. In "Network Connections", uncheck "Show icon in notification area when connected" and click OK. Then re-check "Show icon in notification area when connected" and click OK.
Workaround 2. In "Network Connections", disable and then re-enable the network adapter in question.
Workaround 3. Reboot the computer if it has not yet been rebooted since losing the icon.
Workaround 4. Uninstall and re-install the network adapter.
Uninstall: Device Manager -> Network Adapter -> Uninstall
Re-install: Control Panel -> Add Hardware
Did any of these help?
-----Steve Jackson
CEO/CSA
Software Corporation (Softcorp)
http://www.softcorp.us/probono
Advanced pro bono tools and utilities free for personal use