EA9500

I'm the author of the thread, the Linksys EA9500 is way more common than the EA9400 but are nearly identical, the only difference is the EA9500 using a BCM4366C0, while the EA9400 uses a BCM4366B1, other than that, both routers are so similar that you can run the EA9500 build of OpenWRT on the EA940

I know this probably sounds really stupid, but I managed to get Claude to make a working freshtomato port, it boots, but running "nvram commit" crashes the router, and the Wi-Fi radios don't work yet. The image I used is at https://github.com/SomeTechyGuy/freshtomato-arm-EA9500/actions/runs/25607309

The spinning admin page on your EA9500 while it still functions as an AP suggests a firmware or interface issue; a factory reset is generally safe but will erase settings, so try clearing browser cache, using another browser, or accessing via Linksys Cloud Manager before resetting.