Qautro Broastcast storm?

[badbob001]

Recently my local network is facing issues like lost connectivity and dropped ping packets. Also my wifi access points show high cpu usage. When I unplug my quatro from the network, the issues immediately goes away. Tried this a few times. Has my quatro become defective and causing a broadcast storm?

It's a Connect Quatro (HDHR5-4US).

[Cabal]

Do you have a computer/device on the same network segment that could run tcpdump or Wireshark? I'd be curious what all the traffic is.

[nickk]

Quick thing would be to install Wireshark (free from https://www.wireshark.org/ ). The install process will install pcap on Windows. Ok to skip installing USB support.

Run a packet capture and see if there is a flood of packets.

[badbob001]

Used wireshark and saw that my firetv cube and hdhomerun were blasting each other with MDNS (multicast dns) messages. It looks like the firetv sent the first query. No idea why only these two devices are behaving this way to each other suddenly.

I didn't see a way to disable mdns on either device. Power cycled the firetv but eventually the storm returns. It seems I have to decide which baby to keep...

[nickk]

1) There was a known bug like this in Android/Fire TV a few years ago - make sure your device is running the latest system updates.

2) We actually did a big upgrade of the MDNS handling recently - recommend installing the latest beta firmware by using the beta Windows or Mac installer here:
viewtopic.php?t=20613

[pshanew]

Used wireshark and saw that my firetv cube and hdhomerun were blasting each other with MDNS (multicast dns) messages. It looks like the firetv sent the first query. No idea why only these two devices are behaving this way to each other suddenly.

I didn't see a way to disable mdns on either device. Power cycled the firetv but eventually the storm returns. It seems I have to decide which baby to keep...

Have you installed any new apps on the Fire TV recently (or changed any UPnP/DLNA settings)? Such as a DLNA client, or anything else which uses SSDP for device discovery? DLNA uses SSDP for device discovery, which itself uses mDNS. (I'm using "uses" loosely here; the relationship between the protocols is a little more nuanced) And it can be a fairly chatty protocol. For example, for every discover request from a client, the HDHR will respond with 3 (I believe) replies: One for its ATSC 1.0 "side," one for its ATSC 3.0 side, and one for well, I don't know.

[badbob001]

Have you installed any new apps on the Fire TV recently (or changed any UPnP/DLNA settings)? Such as a DLNA client, or anything else which uses SSDP for device discovery? DLNA uses SSDP for device discovery, which itself uses mDNS. (I'm using "uses" loosely here; the relationship between the protocols is a little more nuanced) And it can be a fairly chatty protocol. For example, for every discover request from a client, the HDHR will respond with 3 (I believe) replies: One for its ATSC 1.0 "side," one for its ATSC 3.0 side, and one for well, I don't know.

I haven't installed any new apps on the firetv. The only thing amazon-related recently was on a mac, where I enable the backup of photos via the amazon photos app. I have a lot of photos so that is still in progress, but there are very few mdns packets from the mac. Photos are viewable from any amazon device with a screen (firetv, echo show, etc) so maybe something peer-to-peer related.

I do see the firetv making a mdns query for the same thing consistently (something like B12345C67890.local), but I can't figure out who that is. Maybe it's a MATTER thing. I do have iot stuff with zigbee but not MATTER.

[badbob001]

1) There was a known bug like this in Android/Fire TV a few years ago - make sure your device is running the latest system updates.

2) We actually did a big upgrade of the MDNS handling recently - recommend installing the latest beta firmware by using the beta Windows or Mac installer here:
viewtopic.php?t=20613

The beta firmware seems to have done the trick! I also just got a HDFX-4K just in case and when I plugged it in, down went the network. So I'll need apply the beta firmware to that as well.