My Cloud Mirror speed drop to 0 KB/S after a few seconds

My Cloud OS 3 Personal & Network Attached Storage My Cloud Mirror
1

I am using Mt Cloud Mirror on an offline person network.
Tried connecting via wifi and wired LAN both
OS= windows 10

after few seconds speed drops to 0 kb/s
then after some time copies some files and then back to 0 kb/s for long times