Range Ext wont work with Apple devices

Yes, did factory reset after installed old firmware.   So some more troubleshooting:   I occaisionally do get a webpage when using Apple products now, but most pages do not load.   I have the extender connected to my Uverse internet. But I also have an Apple Airporter device so I synced the extender to that unit with the same results.   If the extender is basically just a repeater, then I figured the Apple Airport device would work, but it doesnt.  I get the same results.  I wonder if the extender is scrambling the IP or someother part of the address?

Thank you!