I just purchased Two Droid Phones. They are great except there was a problem with the WiFi connections. I'm using a Linksys WRT54G Router with a Linksys WRE54G Range Extender. Most of the time the WiFi would not connect to my home network or it would constantly loose the connection. No problem with public domains. I spent several hours examining both the wireless router and the Range Extender. I finally found the problem which was the Range Extender. I unplugged it and both phones immediately connected. The issue was an IP conflict. I re-assigned the last three numbers of the Range Finder's IP to one which was NOT being used on the network by any other hardware. I use MAC address filtering on the router and made sure the number on the Extender was included on the Mac list. I hope this is helpful to others on the site because it has been a pain in the **** for me. Update: After a day of perfect WiFi connection with the Droids, they stopped connecting. I further tested all the computers, laptops, etc on my network and found the problem. It is the WRE54G Range Extender. I unplugged it and the Droid Phones work fine. The downside is that the signal is not as strong as I would like it to be at the other end of my house. My entire network has worked flawlessly for the last several years and continues to do so. My only problem has been with the Droid connections through the Range Extender.The Range extender has been configured properly with both lights blue and stable on top and my laptops in wirless settings can access through this device since it is only a repeater of the signal from the Linksys router. I am not sure how to resolve this since I have plugged the Extender back in from time to time and the same result: When plugged in=NO connection via the Droids When unplugged=immediate connection and no problems. Go Figure!!! Last Update: Reconfigured the Range Extender again, worked briefly but then the Droids continued to either NOT connect or disconnect after a few minutes. I have since again removed the extender. Another note: The droid connects to the WRT54G but is somewhat inconsistent now. My conclusion is that the Droid needs a firmware update and the problem is with the phones and not with the networks. Update: August 31, 2010. After updating to 2.2 on my Motorola Droid, I can NOW connect to my home Wifi including the extender without any problem. It has been running for several days now without any problems.