I have a TL-WN821N V3 installed on my windows 8 32 bit PC. TP-LINK tech has sent me the steps below. And it does work. 1. Make sure the PC is connected to the internet such as wired connected to the...

Set it up as bridge.

The model No. of your router is TL-WR842ND, right? then you upgrade its firmware to that of the TL-WDR4300. I'm afraid this router has been damaged.

Have no idea. Contacting the tp-link guys would be a better choice.

Try to add the TCP/IP port on your computer and see whether you can print or not. Since your printer is not listed, you may not print successfully. Good luck!

Reset it and see how it goes. You should have "Disable security" and "WEP" on the same page.