How to: Release / Renew an IP address in Windows 98
  1. On the Start menu, click Run…. In the Run dialog box, in the Open: text box, enter winipcfg .
  2. Click OK.
  3. In the IP Configuration dialog box, under Ethernet Adapter Information, click the Ethernet Adapter arrow, and then click your Ethernet adapter.
  4. To release the IP address, click Release.
  5. To renew the IP address, click Renew.
  6. Click OK.