3 ms·

My only unsolved networking mystery was that my computer would experience high packet loss when a Roku in the other room was streaming Netflix. My PC and the r

My only unsolved networking mystery was that my computer would experience high packet loss when a Roku in the other room was streaming Netflix. My PC and the roku device were both wired to two different ports on a router (iirc an Edgerouter X running openwrt at the time). This didn't repro when the roku streamed other services (hulu/youtube tested), only netflix. This also didn't repro if the roku was connected over wireless (connecting to an AP wired to a different port). Just opening netflix also didn't repro, the roku had to be actively streaming a netflix video. I never ended up solving it, I just worked around it by making the roku connect over wireless. It did take me forever to figure out the problem though. For a long time I'd be in one room getting frustrated with my computer while someone was innocently watching netflix in the other room.

jorl17 8mo ago
QoS?
- NoPicklez 8mo ago
  Does sound like a QoS thing, but I would think QoS still applies over WiFi so I'm not sure
  - bentcorner 8mo ago
    Good guess! I did enable some QoS algorithm in openwrt so it's certainly possible. But yeah it doesn't make sense that wifi traffic was non-impacting. But it's something I didn't try turning off.
    - NoPicklez 8mo ago
      When you're desperate you'll troubleshooting anything hey
pak9rabid 8mo ago
Here's a fun one that I still haven't figured out: I recently purchased a Banana Pi 4 with the 802.11be Wi-Fi 7 module to be used as an access point. It generally works well as an AP and I'm getting full speeds. However, for some reason whenever I try to communicate directly with the router/firewall (separate device on the same network) through this AP, it will intermittently drop 3/4 packets. It only happens when communicating with the router/firewall device, and only over the wlan interface on the bpi-r4. I have a similar AP setup on another embedded system (PCEngines APU2) and this has never been an issue. I suspect there's some sort of bug with the internal 4-port switch of the bpi-r4 not playing well with the wlan interface when they're all bridged together, but digging through the logs hasn't revealed anything obvious. It's driving me nuts!

jorl17 8mo ago

QoS?

NoPicklez 8mo ago
Does sound like a QoS thing, but I would think QoS still applies over WiFi so I'm not sure
- bentcorner 8mo ago
  Good guess! I did enable some QoS algorithm in openwrt so it's certainly possible. But yeah it doesn't make sense that wifi traffic was non-impacting. But it's something I didn't try turning off.
  - NoPicklez 8mo ago
    When you're desperate you'll troubleshooting anything hey

pak9rabid 8mo ago

Here's a fun one that I still haven't figured out: I recently purchased a Banana Pi 4 with the 802.11be Wi-Fi 7 module to be used as an access point. It generally works well as an AP and I'm getting full speeds. However, for some reason whenever I try to communicate directly with the router/firewall (separate device on the same network) through this AP, it will intermittently drop 3/4 packets. It only happens when communicating with the router/firewall device, and only over the wlan interface on the bpi-r4. I have a similar AP setup on another embedded system (PCEngines APU2) and this has never been an issue. I suspect there's some sort of bug with the internal 4-port switch of the bpi-r4 not playing well with the wlan interface when they're all bridged together, but digging through the logs hasn't revealed anything obvious. It's driving me nuts!