Led Status - TP-Link TL-WN821N - NT WIRELESS N USB ADAPTERATHEROS2T2R 2.4GHZ 802.11G B ND RTL User Manual

1.3 LED Status

LED Indications
Status Green
Activity Green
Status Green
Activity Green
Status Green
Activity Green
Status
The adapter is trying to scan a networking
Flashing Alternately
connection.
The adapter is already connected but is not
Intermittently
transmitting or receiving data.
Flashing The adapter is transmitting or receiving data.
TL-WN821N Wireless N USB Adapter
Working Status
3