Why would mac disconnect from a wireless printer used for years?

The printer used is a Brother, and the reports show that the WLAN is ok and the network configuration is all set up. restarted printer and computer. Deleted printer and tried to add it again and Mac won't do anything. connection with the printer is lost.

Hi,
I'm not sure about the cause of your problem and I'm no expert, but since you only seem to have trouble when you awake the mini, let me give you a few ideas...
On the D-Link Home/DHCP: what is the lease time of the DHCP server? If it is short, try setting to 1 week. Maybe your lease expires while your mini is in sleep mode and then your mini can't get a new IP since it is already "connected"?
On the D-Link Advanced/Performance: what Preamble Type is selected? Short Preamble has given me trouble in the past, so try changing it to Long Preamble, which seems to work better with Macs.
My Mini is connected to a D-Link DI-624 and it has always worked like a charm, but I don't put my computer to sleep for long periods of time (couple hours at most), so I never experienced that problem.
Good luck!
Guylaine
Mac mini Intel Core Duo 1.66 GHz 512MB DDR2 SDRAM   Mac OS X (10.4.8)   G4 Digital Audio Mac OS 9.2.2, iPod nano 1GB, iPod nano 4GB

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