iPod touch can't get IP address from Airport Express I've got the following setup:


DSL modem connected via Ethernet to an Airport Express
A second Airport Express extending the first
Both Airports Express are the current model, running version 7.6.4 of their software.


Between the two I have nine working wireless client devices, mostly Macs and iOS devices.

However my 5th-gen iPod touch can't get an IP address. It connects to the wireless network, but keeps a self-assigned IP address. I can see this address both on the iPod touch and in Airport Utility (on a Mac). So I know it's connecting, but for some reason it can't get an address.

I've tried:


Rebooting the iPod touch
Resetting network settings on the iPod touch
Resetting all settings on the iPod touch
Upgrading the iPod touch from iOS 8.0.2 to iOS 8.1


No change. I could do a full wipe/restore on the iPod touch, but with everything above already failing, I'm skeptical it would help.
As often happens the solution was just to reboot all the things. In this case it eventually turned out that the DSL modem (which is also the router) was the culprit.