you may go to Amazon or local computer store to have a look. Not familiar with practical situation in your country~

Repeater requires the same wireless channel and security type with root router(TL-WA701ND). Try to update firmware of the devices and reconfigure it.~

If you use client mode, you can only access internet from TL-WA901ND by a cable. does your PS3 support wired connection?

since you have already installed public driver from Realtek webstie and the wireless adapter is plug-and-play product, it seems there is no any other settings we can do about adapter. You may still...

Checked TP-LINK website~ TL-WN350G is a discontinued product. Guessing they won't keep an eye on it again~ anyway, it's just my personal opinion. You'd better email to support@tp-link.com.

the antenna of TL-WA5210G is Directional Antenna, so it's not proper to configure repeater mode. The effect is not so good if it's not Omni-directional antenna. you need to open port for your camera...