My Airport Express is about three years old. On occasion my iMac will not connect with my DSL server when I awaken my Mac. The only way I've found to reconnect, is unplugging my Airport Express to disconnect it from my server, and then plugging it back in. After the light turns from amber to green I'm reconnected. Does this happen to others, or do I need to either purchase another Airport Express or attach my iMac to my DSL via Ethernet? Thanks.