I recently installed a Sonnet PCIe USB/Firewire expansion card in my MacPRo 2008 8-core. Since then I cannot print wirelessly to my Canon MP980. If I remove the card, printing is back to normal. I have tried different slots with no change. Sonnet tech has no clue. I have other printers that are connected directly through USB that are not affected.
NEW: I replaced the Sonnet card with a different brand - now works fine. Problem solved but still no clue as to why the conflict.
NEW: I replaced the Sonnet card with a different brand - now works fine. Problem solved but still no clue as to why the conflict.