Q: I'd like to change my channel on my old airport express

Hi 

I sounds like you already know how to change the settings on your Airport Express, but you are running into issues with saving those changes. Let's see if we can get those sorted out.

At that point, you might want to restart your Airport by removing it from power for a few seconds and then power it back on to then try those steps again. If that does not work, then the next thing to do would be reset your Airport and set it up again to save those changes. Take a look at the article below for more details on resetting an Airport base station. 

Resetting an AirPort base station FAQ
https://support.apple.com/en-us/HT201945

Have a good day

Hey Jan,

Glad to hear that it worked out for you. It was no problem with the assist. If you have any further questions or need help, feel free to post a new question and we will get to you as soon as possible.

Thanks for using Apple Support Communities. 

Take it easy