I've been using a G4 mini running 10.4.11 for web surfing, email, and document scanning for about 4 years with few issues. Recently, though, it loses its wired ethernet connection when I wake it from sleep. No ethernet device appears in Network Preferences/Network Status, and Network Utility shows the ethernet connection as "inactive". If I disconnect the ethernet cable for a few seconds and then reconnect it, the ethernet connection reappears in Network Preferences, goes "active" in Network Utility, and functions normally. Once ethernet reappears, I can wiggle, tug, and disconnect/reconnect the cable and maintain the connection. The cable works normally with another computer. So it doesn't seem to be a hardware connection issue. The network has 2 other wired computers attached with no issues (an old homemade PC and a Mac Pro) and several other devices via both wired and wireless connections. So I don't think it is a router or dhcp issue. I don't recall installing any new software, although I install all Apple updates (including iTunes) when they become available. Any thoughts what could be causing this behavior, and how to correct it? Thanks in advance for the assistance.