Windows 10: Unable to fine HDHomeRun tuner on local network.

Help and support for HDHomeRun DVR and HDHomeRun software for Windows 10, Mac, Android, XBox, etc.
fst
Posts: 4
Joined: Sun Mar 04, 2018 4:37 pm

Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby fst » Sun Mar 04, 2018 5:12 pm

I have a HDHomeRun CONNECT Quatro (Version 20180110) running fine on my home network.

My phones, and tablets can all connect to it fine over Wifi with no problems.

My laptop (running Windows 10 Pro 1709 16220.248), however, is not able to connect via the app using the same Wifi. It works fine wired, but not on Wifi.

When I run the Windows app on Wifi, I get the error "Unable to fine HDHomeRun tuner on local network."

If I browse the http://my.hdhomerun.com/ page with the laptop on Wifi, it sees the tuner and the scanned channels.

Also, Windows Firewall is disabled on the laptop.

Help. Thanks in advance.

riopato
Posts: 1
Joined: Sun Mar 04, 2018 9:56 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby riopato » Sun Mar 04, 2018 10:01 pm

Check your network settings. Build 1709 messes up the sharing and discovery functions because Microsoft is getting rid of homegroup feature.

jasonl
Silicondust
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Joined: Sun Oct 28, 2007 9:23 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby jasonl » Mon Mar 05, 2018 12:02 pm

Are you using a static IP or DHCP on it?

Is it connected to the exact same SSID as the working devices? Or are the working ones on one network (e.g. 2.4) while the laptop is on another (e.g. 5)?

Any repeaters/mesh network/multiple APs/etc. in use?

fst
Posts: 4
Joined: Sun Mar 04, 2018 4:37 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby fst » Mon Mar 05, 2018 2:36 pm

Exact same network. Same SSID, 2.4 Ghz connection.

I will take a look at the homegroup suggestion.

Btw, does anyone know exactly how the Windows app finds devices? Is it doing a UDP broadcast? I'd be interested to know more.

I looked at the exchange via TCPView, but didn't see much interesting.

fst
Posts: 4
Joined: Sun Mar 04, 2018 4:37 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby fst » Mon Mar 05, 2018 3:06 pm

Forgot to mention, DHCP with a reservation.

Don't think it's a homegroup issue. The connection is public and network discovery is turned on.

NYPlayer
Posts: 2628
Joined: Fri Apr 17, 2009 11:45 am

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby NYPlayer » Mon Mar 05, 2018 5:33 pm

Forgot to mention, DHCP with a reservation.

Don't think it's a homegroup issue. The connection is public and network discovery is turned on.
Why are you using Public instead of Private ?

jasonl
Silicondust
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Joined: Sun Oct 28, 2007 9:23 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby jasonl » Tue Mar 06, 2018 3:40 pm

The Windows app sends a UDP broadcast to the subnet and gets a unicast response back from the HDHomeRun. The usual culprits are software firewalls blocking the unicast response (usually third-party ones like Norton), the subnets being mismatched, or the router/AP not passing broadcast traffic between wired and wireless.

fst
Posts: 4
Joined: Sun Mar 04, 2018 4:37 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby fst » Fri Mar 09, 2018 12:58 pm

Does the Android app use a different method of discovery? I ask because my tablets and phones can discovery the tuner (after a few tries) but Windows and Mac cannot. Just curious.

Also, it there any documentation how the tuner discovery works? Is it a UDP broadcast that is looking for a specific MAC prefix?

Thanks in advance.

jasonl
Silicondust
Posts: 11756
Joined: Sun Oct 28, 2007 9:23 pm

Re: Windows 10: Unable to fine HDHomeRun tuner on local network.

Postby jasonl » Fri Mar 09, 2018 3:11 pm

The Android app will also do an SSDP discovery if the broadcast doesn't return anything.

The broadcast goes out to the subnet broadcast address. So if you're using 192.168.1.* with a 255.255.255.0 subnet mask, it goes out to 192.168.1.255 on port 65001/udp. This should get forwarded to all devices on that network, both wired and wireless. If you're familiar with Wireshark, you should be able to start a Wireshark capture on a wired PC on the network, then open the app on the wireless laptop, you should see the discovery requests in the captured data (use a filter of udp.dstport==65001).


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