# X_SOCKET_LIMIT

## Means

one principal holds too many sockets on this node

## Typical cause

the actor, or the anonymous client network, already holds the maximum number of open sync sockets on this node

## Fix

`defineConfig({ realtime: { maxSocketsPerActor: 32 } })` — in app.config.ts — or close other tabs

[Realtime](/error-codes#realtime)