Older computer on TC network shuts down, fixed with different router

Question

I offer this as a solution to a problem with many possible reasons. It seems the router part of my Time Capsule was causing me problems. Using an old LinkSys router and making the Time Capsule be just a hard drive seems to have fixed my problem.
The situation is this: have been using a home network for three years with two wireless newer laptops and an older G4 machine as my base station with wired connections to printer, scanner, Time Capsule, and external hard drives, etc. One main use of all this is to archive photos from my laptop to an external hard drive connected to the G4 machine. A few months ago, it seemed that the G4 would die from a kernal panic whenever I tried to transfer 2 gigabytes or more of photo files. The G4 has an upgraded chip so it can run Leopard 10.5 but otherwise is the same old machine with a bus speed of 133 mHz, etc. Also, the hard drives could have problems, or repeated communication problems could have corrupted some software.
I finally decided to do a clean re-install of Leopard and that seemed to fix the problem for a while, but lately the G4 simply shut itself down with what seemed like little provocation. After careful diagnosis (and some time passing during which time whatever the disease is could have gotten worse), I narrowed the issue to one simple Finder task.
When using the laptop (wirelessly) to browse folders on one of the external hard drives wired to the G4, it would start to show me the files, but hang up, freeze and shut down if I probed folders (of 25 to 50 large jpeg files) too quickly. However, if I went to the G4 console and performed the same browse of folders, there was no problem, so I couldn't blame the G4 itself or the hard drives.
I suspect the Time Capsule router side is somehow not making allowances for the age and speed difference of the two machines on the network, or else is otherwise simply sick. Anyway, using an old LinkSys wireless router with the G4 and, with the help of hints and instructions here, keeping the Time Capsule as a hard drive only so my Time Machine backups can continue, seems to have solved my problem.
Once again, I can browse my archive hard drives to my heart's content and send several gigabytes worth of photo image files from the wireless laptop to the external hard drives served by the G4 and have no problem doing it. I am sure the official answer would have been to take the old G4 behind the barn and shoot it as it is now about 10 years old, but it is doing just fine as a base station server and it looks like it has a few more years yet to go.
I hope this helps someone with a similar problem.

Answer 1

Video: Nvidia Geforce 9600M GT
If you have a recent nVidia driver installed, you might want to check to see if you have either of these two modules loaded - check in the nVidia console:
PhysX, or 3D Stereovision. If you have them, definitely disable 3D Stereo, and test. If no improvement, disble PhysX and test.
Also, try adjusting your Hardware Acceleration. If Max, set to Min and test. If Min, set to Max and test. If either helps, try incrementing up, or down, until it no longer helps.
Last, check your OpenGL settings. If ON, turn OFF. If OFF, turn ON.
It appears that you have a laptop. Is that correct?
Good luck,
Hunt