Solving playback issues

[Kelliah83]

Yesterday my xfinity app , Netflix app and peacock app all stopped working saying that the Roku is not connected to the internet . I restarted , unplugged and did a multitude of things to try and restart but still it won’t work and it is on all 4 of the Roku TVs I own . My internet has been checked it is fine I can run apps off of our Xbox but I can not get any of the Roku apps to work . Very frustrating .

[makaiguy]

There are a couple of network connection problems recently being reported that have been caused by updates to routers. These have primarily been reported with routers supplied by internet providers, especially those supplied by Comcast/xFinity and Cox, but it's possible they could also occur with other services or user-owned routers that have received updates.

• ROKU LOCATES NETWORK, REPORTS CONNECTION QUALITY, BUT CANNOT CONNECT
  Some router updates have changed the router's security setting from b/g/n to just g/n, causing some Roku models to lose their ability to connect to the network. The solution is to set the router's configuration back to using b/g/n security.
   
• ROKU CANNOT FIND LOCAL WIFI NETWORK
  Some routers (reported from Xfinity and Cox, but there may be others) have had their 2.4 GHz wifi band turned off, leaving only the 5 GHz band operational. Devices with single band wifi radios, notably Roku Express and Premiere models (but not Express 4K models) as well as many other single band devices can not even see the 5 GHz band. The solution is to reconfigure the router and turn the 2.4 GHz band back on.
  
  If this problem was not caused by a router update deactivating the 2.4 GHz band, often a restart of the router (even if other devices are still connecting) followed by a restart of the Roku will allow the connection to be reestablished. Depending on your Roku model and Roku version number you'll find the System restart option under either Settings > System or Settings > System > Power.

If you need to make configuration changes on equipment supplied by your internet provider but you have no access to its settings, you may need to request your internet provider to make the changes for you.