Recording Server live and play back,Milestone Smart Client view and plugin using SDK view different ?Smart Client is ok, but SDK is no ?

Sample SDK Playbackwpfuser(2018R2) can not view playback, but can view live view.

And Sample SDK ImageViewerClient(2021R1) can not view live and playback, only know ip-cam list, you can choose, but no video show.

but Milestone Smart Client Can live and play back, and SDK all no live and play back.

firewall port ?

SDK port and Smart Client port different ?

1. 20210805_A.png

Milestone Smart Client Can live and play back

Milestone Smart Client plugin SDK Can live and play back

2. 20210805_B.png

Milestone Smart Client Can live and play back

Milestone Smart Client plugin SDK Can live and can not play back

3. 20210805_C.png

I google find that Recording Server Port, it that be related ?

​4. 20210805_D.png

​this is Smart Client plugin SDK**(Playbackwpfuser)** view live

5. 20210805_E.png

​this is Smart Client plugin SDK(Playbackwpfuser) play back,

only no change view, can not let view continue,

bottom tool bar keep go on, but view not.

The ImageViewerClient sample - https://doc.developer.milestonesys.com/html/index.html?base=samples/componentsamples/imageviewerclient/readme.html&tree=tree_2.html is a standalone sample, not a plugin and your screenshot D and E don’t look like the sample. Can you please tell me which sample you are using?

Regarding the port number, Smart Client and SDK are the same.

Can you please test if unmodified ImageViewerClient sample works on the same machine as Smart Client? Also, please check MIP log ([C:\ProgramData\Milestone\MIPSDK).](file:C:/ProgramData/Milestone/MIPSDK).)