It won't stay on Ethernet!
One of the most frustrating problems in setting up your network can be the AppleTalk control panel telling you that it can't switch to Ethernet because it's "not available." If this happens to you, try to resist the urge to whack the Mac's screen and yell "Not available? It's right there!" This problem typically occurs on Macs with built-in Ethernet, especially when using a
Setting up a crossover network?
It's often challenging to use a crossover cable on Macs that come with built-in Ethernet (like Power Macs and Quadras), because they were designed with an Ethernet
Check the connections
Make sure you're attached to a network and the network adapters are functioning properly. Note that your Mac handles LocalTalk and Ethernet differently: you can switch to LocalTalk without a network actually present, but built-in Ethernet won't work unless a network is hooked to the Ethernet port. On Ethernet hubs, there is an activity indicator (usually a red or green light) on each port. When information is passing through that port, the light illuminates. If there isn't any activity on the port your Mac is hooked to, that indicates there's a problem somewhere in the connection or in the port. Try plugging your Mac into a different port; if the problem goes away, you've found a bad port. Also try a different piece of cable, for the same reason.
Check the cables
One of the most common causes of network problems is a cable gone bad. A bad cable is not just one that has internal wires showing or that got chewed on by the dog, though. Internally, most cables actually contain several wires; one bad wire can make the whole cable non-functional, or (even worse) partially functional. So how do you know if you have a bad cable? Typically, you can try swapping it with another, since the odds of getting two new-yet-bad cables is small. To be absolutely sure, you can have a computer tech check the internal connections.
Are you using the right cable?
When you're setting up a network, it's possible to end up with a different cable in the mix than you'd intended, with the end result that the network doesn't work. The most common example is in an
Still not working?
Problem still not solved? Questions linger? If so, please send mail and I'll do my best to help out. I try to answer all mail with 24 hours, although it can take longer if the answer requires some research.
Contents of Three Macs & a Printer are ©1996-1999 Matthew Glidden (except for the bits that aren't).
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[This page was last updated on 3/7/99; 2:06:27 PM.]