client.request has no response

[Eddie-91]

1 client.connect()
2 if not client.isconnected():
3 print('UnrealCV server is not running. Run the game downloaded from http://unrealcv.github.io first.')

4 res = client.request('vget /unrealcv/status')
when run to code "res = client.request('vget /unrealcv/status')", there is no response. sometimes, reboot system will work, but sometimes not

• Operating System:
• UE4 Version:4.16
• UnrealCV Version:
• Client (python3):
• Problem Description: