I've done gobs of searches & research & experimentation, with no luck. All D-Link equipment.
I had a basic 2-computer lan that worked fine with a DI-604 router, desktop with the basic DFE-530TX+ and a laptop with a DFE-690TX (wired). With the laptop, I had internet and communication with my desktop (lan). No troubles.
I decided to go wireless. DI-524 router, DWL-G630 for the laptop's adapter. The laptop links to the router perfectly, good consistent signal strength, and I get internet access with apparently perfect reliability. (It's good enough that I can't tell the difference between wireless & wired, as far as performance is concerned).
However, the lan refuses to work. I've tried everything I can think of, every setting, and every 'tip' I've found on usenet. Even updated the router's firmware. No change.
If I replace the wireless adapter with the wired one, the lan works fine. That would seem to identify the adapter as the problem, but perhaps that's too simple an approach.
This is driving me to despair, and I wonder how much spontaneous violence LAN problems can incite! Any ideas?