When I use new version of Chrome to login VM3200, I couldn't see the preview, but using IE is ok.

How can I solve the problem?

Type the url below first.

chrome://flags/#reduced-referrer-granularity

Change the setting "Reduce default 'referer' header granularity" to Disabled.  Then you could see the preview on VM3200 GUI.

Also, please upgrade the streaming board firmware and VM3200 firmware together to make sure there is no new and old firmware to cause the incompatibility.