Msgroomes23
Default Settings for routers should also be considered when troubleshooting. Try using these recommended/default setting and then tweak as necessary.
2.4 GHZ BAND
1. Radio is On/Enabled
2. SSID (network name) is On/Broadcasting
3. Network Mode/Protocol is set to b/g/n or b/g/n(Mixed Mode)
4. Bandwidth/Channel Width is set to 20mhz
5. Wireless Channel is set between 1 and 11 (preferably 1, 6 , or 11). Channels 12 and 13 are disabled through Roku Software, so manually setting a Channel will help mitigate issues caused by Auto Setting.
5.0 GHZ BAND
1. Radio is On/Enabled
2. SSID (network name) is On/Broadcasting
3. Network Mode/Protocol is set to N/AC
4. Bandwidth/Channel Width is set to 20mhz or 20/40 mhz
5. Wireless Channel is set between 36-48 (low frequency band) or 149-161 (high frequency band). Roku cannot see or use channels 52-140 (DFS Channels) which an Auto Setting may be choosing. If your router allows you to Disable DFS Channels, then an Auto Setting may be used after successful troubleshooting.
Restart both your Router and Roku devices(s) after making the above changes.
Post back with an update or if you need more help. Include your Roku model number, router model number and ISP. (internet service provider).