To no avail. Tonight I made some headway in the fact that after a factory reset I setup
wireless > basic settings > wireless mode > client
put in my ssid of my Linksys then goto
wireless > wireless security
and enter my WPA2 Personal details I tried setting to AES+TKIP like the Linksys is set to but this doesn't work for some reason so set to AES and low and behold I was able to ping the outside world but nothing internally.
Now at the moment the the DLINKS got a WAN ip and when changing wireless mode to 'repeater birdge' it says wan disabled in the top right corner. I've tried all the settings as per the guides but can't seem to get it to work in repeater mode, as i've had it working in client mode I must be half way there ha.
I have set up many 615d connecting as repeater bridge to ddwrt and non ddwrt routers and it never fails
I always make sure the wifi channel is set on the repeater bridge router to match the main router wifi settings .. I would start with wep encryption first and once it is connecting and you have a link change over to wpa2 aea. Also set it as router in advance routing page