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<blockquote data-quote="chappers" data-source="post: 1584024" data-attributes="member: 77473">I get this problem sometimes with an Epson wireless printer. It generally&nbsp; happens when a printer software update is released.&nbsp; It can also happen if the printer is not used for some time. I suspect the hub disconnects it to free up bandwidth. Two things to try. First the old &quot;Help Desk&quot; option. Turn the printer off and then back on again. This may renew the network presence. May not work but it is quick and easy.Next option, which is the one I found works, is to got to System Preferences. Choose the printer option. Highlight the offending printer and remove it. Close Sys Prefs.&nbsp; count to 10. Open Sys Prefs and again go to the printer option. Click on the + tab to add a printer. It should find your Canon.&nbsp; Confirm you want to add this printer and it should install it for you. Don't be surprised if you get a message that permissions are wrong. Let the Mac repair these permissions. This is what sometimes happens to me. It seems that the permissions are different to those that the have been established, even if you run the repair permissions options in Disk Utility. If this works then watch out for Printer Software updates, as this usually puts things back to default and nothing worksGood Luck</blockquote>

[QUOTE="chappers, post: 1584024, member: 77473"] I get this problem sometimes with an Epson wireless printer. It generally happens when a printer software update is released. It can also happen if the printer is not used for some time. I suspect the hub disconnects it to free up bandwidth. Two things to try. First the old "Help Desk" option. Turn the printer off and then back on again. This may renew the network presence. May not work but it is quick and easy. Next option, which is the one I found works, is to got to System Preferences. Choose the printer option. Highlight the offending printer and remove it. Close Sys Prefs. count to 10. Open Sys Prefs and again go to the printer option. Click on the + tab to add a printer. It should find your Canon. Confirm you want to add this printer and it should install it for you. Don't be surprised if you get a message that permissions are wrong. Let the Mac repair these permissions. This is what sometimes happens to me. It seems that the permissions are different to those that the have been established, even if you run the repair permissions options in Disk Utility. If this works then watch out for Printer Software updates, as this usually puts things back to default and nothing works Good Luck [/QUOTE]

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