Re: HP Laserjet m602 firmware upgrade successful_connecting ethernet cable locks up printer

One thing to try is to turn off all power management. There could be a defect in an ethernet wake packet causing hangs on the printer.

There's also a new version of FW posted that addressed several hangs in the system.

http://h20565.www2.hp.com/portal/site/hpsc/template.PAGE/public/psi/swdDetails/?sp4ts.oid=5036604&spf_p.tpst=swdMain&spf_p.prp_swdMain=wsrp-navigationalState%3Didx%253D%257CswItem%253Dlj_114170_3%257CswEnvOID%253D4063%257CitemLocale%253D%257CswLang%253D%257Cmode%253D%257Caction%253DdriverDocument&javax.portlet.begCacheTok=com.vignette.cachetoken&javax.portlet.endCacheTok=com.vignette.cachetoken