AirPort Express unable to extend a wireless network
I have an AirPort Express that's about two years old. I've been using it to extend a wireless network in our house and it's worked fine. I recently switched to a new modem/router and have been unable get AirPort Express to extend the wireless network (2.4GHz) created by the new modem/router.
I can get the AirPort Express to successfully join the new network, but when I edit the settings to change it to extend the network, the update fails and I get a flashing amber light and the error message that the AirPort Express was unable to extend the network. Signal strength, by the way is "Excellent."
I have tried several times to reset the AirPort Express to factory settings and start from scratch, but get the same result: AirPort joins the network, but does not extend it.
Any suggestions to correct this would be much appreciated.