DIR-655, Hardware Version A4, Firmware Version 1.31NA, Shareport v1.10.
PC1, D-Link DWA-552 Extreme "N" Wireless PCI Adapter, Windows XP Pro sp3
PC2, D-Link DWA-542 RangeBooster "N" Wireless PCI Adapter, Windows XP Pro sp3
PC3, Onboard Realtek Wired NIC, Windows XP sp3
Printer Brother HL-1230 series laser printer connected by printer to USB port adapter cable.
All three PC do the same thing after a couple of hours.
Auto connect doesn't work and if I try it manually it goes you are connected then goes back to being available one sec after. If I reboot the PC it doesn't even connect at all I immediately get a pop up error connecting window. If I reboot the router it works fine for a while but eventually I can't connect again.
I have since un-installed the Shareport utility but now I have another problem. Previously I was using a DI-704P as the print server for the laser printer. It's DHCP server is disabled and its connection LAN to LAN to the DIR-655. It worked fine on all PCs but now it doesn't. I installed the print server software, set the port up and printed a test page OK from all PCs. Now after a couple of hours I can't print to the printer. Nothing happens, it doesn't power up. If I double click the printer icon it shows the print job but the status column in blank. Rebooting the PC and both routers won't fix it. I have to delete the printer and re-install it only to have it not work again latter on.

Shareport has done something to windows that is not un-done when you un-install it. I thinkI amgoing to try a system restore on one of the PC's if I can remember when I installed Shareport.