[SGI Challenge S] ec0: ethernet cable problem

dorper

New member
Feb 22, 2021
2
0
1
I recently bought a SGI Challenge S and have been trying to install IRIX on it. However, I have been unable to connect it over Ethernet. I am able to connect the cable and the light on the rj45 jack on the router goes on indicating that it has been plugged in and connected at 10mbps. The ACT light also blinks as do all the other ports when activity occurs over the network. However, when I try to do any network operation (e.g. installing system software from network) it just prints out ec0: ethernet cable problem four times before failing saying that it could not connect to server. I have also tried connecting the cable directly to my computer and like before the light goes on and the computer recognizes being connected at 10mbps. However, it still will not work and still prints out ec0: ethernet cable problem four times before failing. Is there anyway to get the network working?
 

Elf

Storybook
Feb 4, 2019
412
109
43
For first troubleshooting steps, I would try different cables as well as cleaning the contacts on the RJ-45 jack the cable plugs into. With machines this old oxidation is likely.

It may not be either of those things, but better to get them out of the way first!
 
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dorper

New member
Feb 22, 2021
2
0
1
For first troubleshooting steps, I would try different cables as well as cleaning the contacts on the RJ-45 jack the cable plugs into. With machines this old oxidation is likely.

It may not be either of those things, but better to get them out of the way first!
Just wiped the contacts with 91% isopropyl alcohol, no corrosion was on the swab. Looking at the RJ-45 jack it does not look corroded at all. I have tried 2 three 8-wire Cat5 cables, none of them worked. Because the Challenge S is so old (10BASE-T) could it be that the pinout of the RJ45 is different? The error message is the same no matter if the cable is plugged in or not plugged in.
 

weblacky

Member
Jan 13, 2020
55
13
8
Seattle, WA
Just to make sure, lots of MODERN home stuff doesn't actually accept 10Mb ethernet anymore (won't negotiate). So the home router thing (unless it's older, it may actually not do 10Mb..after all who has it, right? Many manuals indicate this by NOT saying 1000/100/10. Or just saying 100/1000. If your documentation doesn't say 10, it won't support 10. This is a relatively new thing...but I've seen it. If you have something (like a switch) from the early 2000's that will work. They started to do this around 2010+

For the PC, if you used gigabit, it should have auto-crossed over. If you used a 10/100 card on an old PC, you need to ethernet cross-over cable (or crossover adapter).

To make sure it's working, the BEST way is to get an older desktop switch and use that as your media interface to a home router or the like.
 
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