Range extending, a.k.a. wireless bridge, comes with huge bag of problems. It's due to lack of standardization, so it's not really vendor specific, but it means that problems are likely when using equipment from different vendors. You can read more about problems in
wireless station modes manual page. A side note: wifiwave2 driver doesn't support 4-address-mode (yet), so there lies another possibility for things to fail.
In short: unless things align almost miraculously, the setup is not going to work.