Can't get my TP-Link Access point working

[fissidens]

I just moved and setup my internet. My cable modem is working, but when I hook up my access point to the modem and connect try to connect wirelessly with my computer I just get the message "No Internet Connection".

What should I do to troubleshoot this?

My access point is a TL-WA801ND

 

[RealBeast]

It usually works better if you manually configure the device that will be your access point. Are you connecting it to an LAN port of your router and using the AP power cable on it or using PoE?

To configure it manually, connect a computer to its Ethernet port, set the computer temporarily to an address in the default range of the AP and then type the AP default address into the attached computer browser. Insure that the settings are what you want -- particularly the IP address of the AP, which must be in the network range of the router but outside the router DHCP assignment range (or you can get conflicts). Then simply reattach the Ethernet cable to the AP and it should function invisibly to your devices, as they will get their IP addresses from the router (and remember to set your computer used to manage the AP back to automatically obtain IP when done setting the device).