Add the methods to disable power saving mode on wireless adapter for reference. There are two methods, disabling it on wireless adapter's properties or TP-LINK configuration utility . 1.the first...

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

Met the same problem before and it's very annoying. Tried many methods by myself but no success. Contacted TP-LINK support by email and they also suggested disabling power saving mode on the apdater....

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...