@NumberingRavens

It did not happen to me. Make sure you choose the WAN/LAN1 option on the page.

I'm using ER605

  @Somnus 

Thank you for checking the er605. I'm choosing the correct WAN page, I even tried it on the main WAN page and it's doing the same thing. I'll see if there's a way to post a short screen recording. 

I was able to screen record while remoted into the computer from my phone to show the behavior I'm experiencing. However I don't seem to be able to upload it. I'm not able to change the Mac address from detail to custom either. Anything I change on the wan or wan/lan1 page revert back after clicking apply even though it says it was successful. Anyone have any insight into why this is happening or how I can upload the short recording? 

Dave

  @NumberingRavens 

I feel like it's the web browser issue...

What will happen if you login the controller vie omada cloud website?

Try clean the web browser cache and use incognito mode.

  @Somnus 

So... It was a me problem. I was clicking on the Apply button at the top of the page. This apply button is only for which port(s) will be used for WAN the apply button at the bottom of the page is for the rest of the settings. When making changes below the top apply button but selecting the top apply button those changes get reverted.