@woozle Did a factory reset, and it didn't seem to help. However, I don't think it's a problem with the router at this point. With both PCs connected to the router wired, I was able to ping from...

@woozle The Windows PC does have it identified as a private network, so theoretically it should be responding to pings. I've never used the security camera (a Tapo C645D) on another network, this is...

I have three devices connected to my router -- a wired PC, a wireless PC connected at 2.4GHz, and a security camera connected at 5GHz (same standard SSID, not using the Guest or IoT settings). My...