it could had blown
Check if you can reset it to default, and reload the
firmware and set it up again

Thanks for your response. I did that in both devices with no luck. I did a reset via the button in the device and via software. Also I restored the firmware.


Something I didn't mention. I brought the remote device to my house I put it in front of the local device and they did a connection with no problems. It seems to be an issue when the AP needs big power to create tu tunnel in long distances.
I changed the POE and the power supply but it didn't work. I think that one of the devices is broken but I would appreciate any other advise. Thanks!

Anything lately blocking the PTP (the link) foliage grows daily
If that's not the case buy a new one they are really cheap

Ive got two of these. Tried all the firmware available on both of them. I can get one of them to work as a client bridge with an airport express, a WRT350N and a WRT54GL. But I cant get it to work with another WRT160NL as the access point. I can get the two to wirelessly connect to each other but unable to ping each other or anything beyond.

Hello. I'm in same situation. I tried to configure 2 TL-WA7150N as AP and Client mode. All works fine but only if each AP have WEP security. As we know, the WEP is not secure so I tried to change it to WPA-PSK/WPA2-PSK but without success. I tried several configurations of security e.g.:
AP1:

Operation Mode:
Standard AP
Wireless settings:
Operation mode: Access Point
SSID: AP1
Region: Slovak Republic
Transmit power: 8dbm
Channel: Auto
Mode: 11NA HT40
Max TX rate: 150Mbps
Enable Wireless Radio: true
Enable SSID broadcast: false
Enable DFS: true


AP2

Operation Mode:
Standard AP
Wireless settings:
Operation mode: Client
MAC of AP: MAC_OF_AP1
Region: Slovak Republic
Transmit power: 8dbm
Enable Wireless Radio: true Enable DFS: true

When Security both of APs is WEP all works fine. When I changed security to WPA-PSK/WPA2-PSK both AP2 could not connect to AP1. I tried change setting to bridge with AP but after few days the APs lost connection and could not after reboot.

Each AP has same firmware:
Firmware Version: 3.12.6 Build 130427 Rel.69746n
Hardware Version: WA7510N v1 00000000

I tried everything but it is impossible to connect AP1 and AP2 with better security. Could you please point me to the correct settings?

Ok. I found the problem. I had configured AP1 with hidden SSID and AP2 had connection to AP1 by MAC not SSID. When I changed these settings all works fine but I don't understand, why all works fine with WEP security but not with WPA-PSK/WPA2-PSK. Why AP1 could not have hidden SSID when secutiry is set to WPA-PSK?