Slow Ethernet

[zappedagain]

This may be off topic but I thought I'd start here...

I have a computer (iMac G5) with a 100-T port. When I plug it into a 100-T router my download speed drops to 0.05 Mbps. By plugging it into a 10-T switch I can increase the download speed to over 5 Mbps like the rest of the computers on the network. It appears operating at 100-T causes too many retries.

I have isolated it down to the computer (not the cabling between the computer and the router).

Do you think this is a bad transceiver IC or did something get misconfigured? I haven't seen any info on this on the Apple site.

 

[itsmoked]

Try a diff cable since that is easy to do. Use the shortest one you can find as that could give a qualitative answer to the flaky hardware question.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[zappedagain]

I tried that already and no luck. I expect the RJ45 connector is mounted to the motherboard inside the computer so I may be stuck with motherboard replacement.

 

[Noway2]

Make sure that the duplex settings are compatible. The last place I worked at had a problem where if the duplex and speed were set to auto on one PC it would slow the entire chain down. They had a bit todo about going around and checking everyone's computer to make sure they were set correctly (forced 100mbit and full duplex).