On my XP laptop, I had difficulties with a VPN, so I disabled some of my network connections, particularly those for Deterministic Network Enhancer. Ever since, I cannot access wireless networks or use my Verizon VZAccess device. I keep getting messages that the wireless device cannot be detected, or "Make sure your wireless switch is turned on". The wireless device is Broadcom 802.11g Network Adaptor, and the properties say everything is working. The updat routine says I have the latest driver.