# Why does it prompt "Could not reach server (timeout)" during syncing?

![image](https://docs.d5render.com/~gitbook/image?url=https%3A%2F%2F3611830798-files.gitbook.io%2F%7E%2Ffiles%2Fv0%2Fb%2Fgitbook-x-prod.appspot.com%2Fo%2Fspaces%252F-MjbN1iGmN_HBnj_fyU9%252Fuploads%252FkcoV1BehYlm3ac7O3EA2%252Fimage.png%3Falt%3Dmedia%26token%3D1c024fb5-809d-412f-adc6-1f3cde2be47c&width=768&dpr=3&quality=100&sign=52554819&sv=2)

This error is usually caused by **port** conflicts. 

Suggestion: Please restart the device and connect with D5 again.