Hi, you can setup the router as an Access Point. Here is the instruction: http://www.tp-link.com/us/faq-1384.html

If you just want to extend the wifi range, it's suggest to use Wi-Fi Extender, normally the extenders have no compatibility issue with routers. The speed from the extender may remain same or become...

Aha......the router says Model: Archer C1200, not Archer C5. Archer C1200 doesn't support WDS.

Yes, you need connect a modem to the router's WAN port, and run Quick Setup on the router's setup apge. If no internet access, better to call TP-Link support, it's more convenient to setup on the...

Hi Sven, What ports do you have on UPNP list? Did you check the issue with XBOX support? You can check with them to see if the UPNP opened all the ports you need. You may have a try with DMZ for your...

Do you mean the function like this: http://www.tp-link.com/en/faq-383.html ? I don't see many people need the function for DSL modem online.