I installed OpenWRT my TP-Link TL-WR841N, yet I have nothing to do with it other than setting it as access point only mode:
- All settings default
- Plug a cable from one of its LAN port to my main router's LAN port (or switch)
- Disable DHCP server for LAN interface using LuCI web interface
- Config the wireless parameters as needed
Today I tried SSH to my access point to install some packages, and a simple update command failed:
root@OpenWrt:~# opkg update
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/base/Packages.gz.
wget: bad address 'downloads.openwrt.org'
Downloading http://downloads.openwrt.org/chaos_calmer/15.05.1/ar71xx/generic/packages/base/Packages.sig.
wget: bad address 'downloads.openwrt.org'
Signature check failed.
Remove wrong Signature file.
It seems my access point has no Internet connection by itself:
root@OpenWrt:~# nslookup google.com
Server: 127.0.0.1
Address 1: 127.0.0.1 localhostnslookup: can't resolve 'google.com': Name or service not known
All clients connected to it can access the Internet normally. What is the cause of this problem and how can I solve it?