When you click the Add a network place link in the Common tasks pane, nothing may happen. To fix this problem, type these commands from Start, Run dialog:
regsvr32 /i netplwiz.dll
regsvr32 /i mshtml.dll
regsvr32 /i shell32.dll
Restart Windows and try adding a network place. You can also invoke the wizard manually by running this command: rundll32 netplwiz,AddNetPlaceRunDll