All HDhomerun(s) Stopped Working

[fidget]

When I got home from work tonight, I discovered that my SageTV software could no longer see my HDhomeruns on the network. I’ve rebooted them and the server PC and still no luck. Oddly, even though the HDHomerun Setup app can’t see the boxes either, the HDHomerun TV app can play live TV just fine.

Has anyone seen this before? I’ve updated the software and that hasn’t fixed anything.

[EnterNoEscape]

My first assumption would be that this is a firewall related issue.

[fidget]

That was my first thought, but it was working the night before and I hadn’t connected to it for awhile (it sits in an IT closet). I have looked at the firewall settings and nothing stands out. The strangest part is that the HDHomeRun streaming app can search and find the tuners just fine.

I may have to use this as a reason to do a clean Win 10 install on the new SSD.

[davidk21770]

Happened to me so long ago I don't remember how I found and fixed it, but are you sure something else hasn't grabbed the device?

[fidget]

I don't think so. In the past, I was able to run the setup app while SageTV was recording programs and it still detected all of the devices and tuners. After installing the software on my MBP's Windows partition, it was able to see all of the devices. I suppose that I could uninstall and then reinstall the software on the SageTV server.

[fidget]

Welp, that didn't work, so it looks like a reinstall of the OS is in the works for me.

[fidget]

I found the source of the problem. Since I have a hard coded IP address for my server (it makes it easier for my Mac to find it), I had my subnet mask set to 255.255.255.0. When the HDHomeRun Setup application looks for the tuners, it performs a UDP broadcast over the local subnet (198.164.0.255). Something changed on the DHCP service on my local network (I got a new cable modem which caused me to switch me eeros from bridge to DHCP mode) and the subnet now being used is 255.255.0.0. Evidently, this causes my SageTV server to not see the responses from the HDHomeRuns. Changing the subnet mask for my server fixed the problem.

I don't know what caused the subnet mask to change, since I have been using this network configuration for over a week, but it did.

Is there someplace where debugging information like this can be put on the board do that debugging aids like this are easier to find?

p.s., The reason the viewing app worked is because it did a global broadcast (255.255.255.255) and not a subnet broadcast.