https://community.usa.canon.com/t5/Printer-Software-Networking/Re-Turn-Enable-bi-directional-support-on-in-the-printer-s/m-p/123449#M4054 <P>MX 340 printer, wireless connection, 32 bit, and cannot get either of my computers to respond since updating to 8.1. &nbsp;One of them actually already has the box checked for enabling bidirectional support and still isn't working. &nbsp;I've uninstalled and re-installed the printers, updated the drivers, contacted HP (who've referred me back to Canon for support). &nbsp;Help! &nbsp;&nbsp;</P> Tue, 04 Nov 2014 16:42:57 GMT SMPurdy 2014-11-04T16:42:57Z https://community.usa.canon.com/t5/Printer-Software-Networking/Re-Turn-Enable-bi-directional-support-on-in-the-printer-s/m-p/123449#M4054 <P>MX 340 printer, wireless connection, 32 bit, and cannot get either of my computers to respond since updating to 8.1. &nbsp;One of them actually already has the box checked for enabling bidirectional support and still isn't working. &nbsp;I've uninstalled and re-installed the printers, updated the drivers, contacted HP (who've referred me back to Canon for support). &nbsp;Help! &nbsp;&nbsp;</P> Tue, 04 Nov 2014 16:42:57 GMT https://community.usa.canon.com/t5/Printer-Software-Networking/Re-Turn-Enable-bi-directional-support-on-in-the-printer-s/m-p/123449#M4054 SMPurdy 2014-11-04T16:42:57Z