I'm having a similar issue - my AppleTV often can't find the server (which is a Synology NAS). HomeKit is no longer an option on eero. AppleTV and NAS are both hardwired.
Here is some troubleshooting:
Additionally, if you are running Channels DVR Server with Docker, ensure you are using host networking.
If your Channels app can not discover your Channels DVR Server, try manually connecting to it via its IP address.
Same issue here. Channels is not discoverable on my AppleTV or Android phone remotely.
admin interface says
" Could not establish remote connection. See Troubleshooting for more detail"
Troubleshooting has one error under:
Remote Access
Could not connect to xxx.u.channelsdvr.net. Check if the port is mapped.
I just forwarded the port and switched to manual to test, same error.
This is down for everyone. The DNS resolution for the custom domains is not completing.
We're looking into this.
Please update your Channels system status page as having an outage, and not "Operational", to spare users the same hour of troubleshooting I just went through.
Is it related to Cloudflare being down recently or something?
If I've understood correctly, this guide basically says that the subdomain IP has to be the same across clients and server. Eero (to my knowledge) doesn't really allow you to decide what subdomain your clients are on. My server and multiple Channels clients are spread across three subdomains.
subdomains are DNS domains Subdomain - Wikipedia
Are you thinking of IP subnets ? Subnet - Wikipedia
Like 192.168.1.xxx, 192.168.100.xxx, 192.168.200.xxx