Guide
Fix Netplay Buffering: Smooth Playback Settings
Stop buffering: network tests, quality settings, cache clearing and the v10.0 engine upgrade. Ranked by what works.

The spinning wheel is the worst part of any stream. These are the fixes that actually stop buffering in the Netplay APK, ranked by how often they work.
Start with the network
Run one stream on Wi-Fi and one on mobile data. If one works and the other stutters, the app is fine and the network is the bottleneck. On weak Wi-Fi, moving closer to the router or restarting it fixes more cases than any setting.
Lower the stream quality
The player adapts quality automatically, but on a struggling connection the manual setting wins. Drop to 720p or 480p in the player. On a phone screen the difference is small; the difference between playing and buffering is huge.
Clear the cache
A bloated cache can choke the player. Clear it from Android Settings under Apps and Storage. This does not touch your downloads, and it fixes the cases where only some titles buffer. Our not-working checklist covers the rest of the failure modes.
Update to v10.0
The video engine in v10.0 recovers from network drops more gracefully than older builds. If you are on an older version, installing v10.0 over it is a free upgrade with no downside.
Close background apps
On phones with 3-4 GB of RAM, background apps compete for memory and the player starves. Close the heavy ones before a long stream.
Quick Answers
Why does Netplay keep buffering?
Usually the connection. Test one stream on Wi-Fi and one on mobile data to find out which side is at fault.
Which quality should I use on slow internet?
Drop to 720p or 480p in the player. On a phone screen it still looks good and it streams on weak connections.
Does clearing cache fix buffering?
It helps when only some titles buffer, which points to a bloated cache rather than the network.