Video stops when using HTTP streaming from browser

Dear Support team

We want to continue streaming video from web browser using http streaming, but the video stops midway through.

We use this command.

・http://<ID:password>@<IPadress>/media/<cameraID>.mp4?pos=2021-04-07T13:00:00.000

Is there any way to improve it?
Browser settings, coding methods, client PC specs, etc.

The test environment is as follows:

・client.CPU/RAM/Networking　state

CPU: 3%
Memory: 21%
Network: 1%

・NxWitness version of mediaserver you are using?

NxWitness Server：5.1.3.38363
NxWitness Client ：5.1.3.38363