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Linksys Priority By Device Solved Plex Crashing My Network

Hi all! So I noticed a few weeks ago that my home network would “crash” occasionally whenever I would try to stream content via Plex on my local network. My client is a 2nd Gen AppleTV 4K.


One behavior was: After starting playback, the content would load, but shortly after my server and home network would go offline. All devices would loose connection until my router came back online. The routers would not “reboot” per se, at least according to the status LEDs, but they completely lost connection.


Another behavior was: Playback would start fine, but usually after a few minutes, playback would stutter and a “your connection to the server is not fast enough” message would appear. Sometimes it would stabilize, other times it would just lag and crash the network again.


Server: 2018 Mac mini running Plex Media Server v.

Router: 2x Linksys Velop MX4200


Anyway, the solution seems to have been to ENABLE “Priority By Device” in my Linksys Smart Wifi App. Assigning my server to the priority list seems to have completely stabilized my network. I watched Oppenheimer (4K @ ~45Mbps), an episode of Bobs Burgers, and am currently watching South Park while typing this. The network appears completely stable.


tldr: If you have a Linksys router and your network is crashing when watching Plex, add your server to the “Priority By Device” list in your Linksys Smart Wifi App.

Laptop: 2019 16" MacBook Pro i7, 512GB, 5300M 4GB, 16GB DDR4 | Phone: iPhone 13 Pro Max 128GB | Wearables: Apple Watch SE | Car: 2007 Ford Taurus SE | CPU: R7 5700X | Mobo: ASRock B450M Pro4 | RAM: 32GB 3200 | GPU: ASRock RX 5700 8GB | Case: Apple PowerMac G5 | OS: Win 11 | Storage: 1TB Crucial P3 NVME SSD, 1TB PNY CS900, & 4TB WD Blue HDD | PSU: Be Quiet! Pure Power 11 600W | Display: LG 27GL83A-B 1440p @ 144Hz, Dell S2719DGF 1440p @144Hz | Cooling: Wraith Prism | Keyboard: G610 Orion Cherry MX Brown | Mouse: G305 | Audio: Audio Technica ATH-M50X & Blue Snowball | Server: 2018 Core i3 Mac mini, 128GB SSD, Intel UHD 630, 16GB DDR4 | Storage: OWC Mercury Elite Pro Quad (6TB WD Blue HDD, 12TB Seagate Barracuda, 1TB Crucial SSD, 2TB Seagate Barracuda HDD)
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