Airport Express v7.5.2 firmware won't accept manual IP address

Steve,

You can edit your post but only for a few minutes after you posted it.
After that time period, you cannot edit it.

I actually like this feature as it stops some people from completely erasing old posts if they happen to get irritated at Apple or other members. It's a safety feature.

Doesn't look like I had the same problem but...

I was having a **** of a time updating the firmware on my express to 7.5.2. Kept getting an error of express not getting a valid connection error code 6721. Problem wass that I was updating Airport Utility and the Express, or maybe it was just one update. I had tried disabling my firwall, along with adaware and avast just to make sure nothing was getting block, bascially as a last resort. I found your page which made me wonder if it was a router issue. So I started from the ground up and reset eveything (from start to finish, internet modem, router, airport express, no computer reboot)and only left the router and the airport express, along with the computer connected nothing else. I know you have 3 and I'm only working with one, but I've got to say thanks because it fixed my problem as I have and have always had my Airport Express using a static IP. It could have just reset some connections to help link the router with the airport express thus allowing me to finally fully connect to it with my computer. The funny thing is that Airport Utility was always green lighted with the Airport Express even though it said I didn't have a valid connection.

So sorry for the lenghthy explaintion but I have to say thanks, an just wanted to let you know that though not the same problem this may work for you. Worth a shot...Maybe try updating to 7.5.2. Reset your router, than try to plug in your addresses, reset the router again and see what you get..hopefully it sticks for ya.

I have two AE's on my network. Both have fixed IP addresses. I also updated the firmware. I am afraid to report that both of mine work fine. (One is the g version and the other the n version).

Do you have anything connected to the ethernet port as a client. If so that should probably be disconnected when trying to manually set the IP address.

I am confused.

Apple abbreviations are:
AE = Airport Extreme
AX = Airport Express

Which one are you trying to configure?

I am having the identical problem with my AE. No matter what I try the v7.5.2 firmware will not retain a manually configured IP address. After the restart you end up with what looks like a "self configured" IP address. The problem isn't just with the displayed address in the AirPort Utility. The AE also doesn't reply to pings or allow it's configuration to be read.

The only workaround I have found is to revert to the V7.4.2 firmware, which works as expected.

you are not alone. Same here with two Airport Express. It only occurs when set to "Join an existing network" and IP is set manually. When you set it to "Create a network", or if you use DHCP, it works fine.

Clearly a bug, I submitted it on the Airport Express feedback page.

Btw the 169. IP address range is used for self assigned IPs, that means if a device doesn't have an IP assigned manually or by DHCP, it will assign itself one of these IPs.

I am having exactly the same problem with my Airport Express 'N'. I upgraded the firmware and now it simply ignores whatever manual IP address I specify. This is most frustrating. Can some kind soul tell me how I can revert the firmware back to a version that works. Many thanks, James

Doh! What a numpty. Thank you for that 🙂

Had the same issue - updated firmware lead to out of range IP address, and the AX would not accept my fixed IP address.

Kept the updated firmware, but set the AX to use DHCP and the issue has been solved for now.

Clearly a bug - I'll revert to fixed IP when a new (and corrected) firmware is released - but at least I can stream my music again for now...