Symptoms
- Video pauses to load every few minutes
- Picture quality drops to low resolution automatically
- Spinning wheel appears repeatedly during playback
- Buffering happens on one device but not others
Likely causes
- CommonInternet speed too slow for the video qualityHD and 4K streaming need sustained speeds; a slow plan or congested network can't keep up.
- CommonWi-Fi signal weak at the streaming deviceDistance from the router or wall interference reduces usable bandwidth.
- CommonToo many devices using bandwidth at onceDownloads, video calls, or other streams on the network compete for the same connection.
- PossibleRouter or modem needs a restartNetworking equipment can slow down after long uptime.
- Less commonStreaming service server issueThe service itself may be experiencing high demand or an outage.
What to do
- Run an internet speed test on a device near the streaming box and compare it to your plan's advertised speed.
- Pause other downloads, video calls, or streams on the network and try again.
- Move the streaming device closer to the router or switch to a wired Ethernet connection if possible.
- Restart the modem and router by unplugging both for 30 seconds.
- Lower the streaming app's video quality setting manually if it has one.
- Restart the streaming device itself to clear any local buffering issues.
- Check the streaming service's status page for reported outages.
Tools and parts
Ethernet adapter for streaming deviceSearch: “Ethernet adapter for Roku Fire TV Chromecast”
When to call a pro
If speed tests show you're paying for speed you're not getting consistently, contact your internet provider about line quality.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.