Error code
PlayStation NP-37667-9
PLAYSTATIONNP-37667-9
Game/Platform Error· An error code shown by a game or gaming platform/launcher.
What it means
The Share Play connection was lost because the network connection became unstable..
How to fix it
- Use a wired LAN connection instead of Wi-Fi.
- Move the PS4 and router closer together.
- Wait for other high-bandwidth devices to finish using the network.
- Test Internet Connection via Settings > Network.
Not affiliated with PlayStation. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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