Troubleshooting the TP-Link Network Adapter
Case 1 Slow speed
Follow the steps in the following the FAQ found here
Case 2 Unstable connection
Step 1
Check Wi-Fi signal strength. If the signal is weak, try moving the computer closer to your router if possible.
Step 2
If your product is a dual band adapter you will want to check if the issue is on both bands or just one.
Step 3
Log into your router and change the channel and channel width to avoid possible interference.
Step 4
Update driver of the adapter.
Step 5
Contact TP-Link support with the results of the above testing. We may ask additional questions to narrow the issue down.
Case 3 Cannot find wireless network
A. can't find a specific SSID
Change SSID/wireless network name and channel of your router (contact the router support if you don’t know how to do it).
B. can't find any SSID
Step 1
Enable your computer's wireless service.
Step 2
For Windows,
Enable WLAN AutoConfig (Windows only)
Step 3
Uninstall anti-virus software and disable firewall if any.
Step 4
Update driver of the adapter.
Step 5
Contact TP-Link support with the results of the above testing. We may ask additional questions to narrow the issue down.
Case 4 Can't connect to Wi-Fi
Step 1
Make sure your router is working. Use other device like laptop or mobile phone to connect Wi-Fi and check the internet connection.
Step 2
Check Wi-Fi signal strength. Move the computer closer to your router or adjust wireless settings like channel and channel width on your router. Please contact your router's support to assist you.
Step 3
Update driver of the adapter.
Step 4
Contact TP-Link support with the results of the above testing. We may ask additional questions to narrow the issue down.