I use HP Click to print out my CAD projects on the Plotter DesignJet T2600dr. I have noticed that, if especially I print a big data document, my connection to the Internet is lost. I still got a correct IP address, I can ping gateway, but have no Internet (e.g. ping to 220.127.116.11 doesn't work). Before I had an older HP Plotter Designjet T2300 and I didn't use HP Click and the issue didn't happen. It only happens in combination DesignJet T2600dr+HP Click+Big file. I really have no idea what can make a coincidence with Windows Network. Only a reboot of the PC helps to bring back networking. I would like to notice that standard A3/A4 printer works fine.