Hi dears,
I bought the DS--K1T671 for access control, and i find ISAPI for communicate with terminal,
and Hikvision R&D team gave some PDF have information of ISAPI,
but I have problem with every thing in the docs.
for example,

they gave me this, and i tried it simply
but it occured this

every things has same response 'invalid Operation' I'm gonna mad...
of course I research ISAPI at this forum, and many people recommend 'http://user
assword@<IP>/ISAPI/Streaming/channels/101 or 102/picture'
and i tried it,

also same.
How can i solve this problem? has someone used this product named DS--K1T671?
Thanks!
I bought the DS--K1T671 for access control, and i find ISAPI for communicate with terminal,
and Hikvision R&D team gave some PDF have information of ISAPI,
but I have problem with every thing in the docs.
for example,

they gave me this, and i tried it simply
but it occured this

every things has same response 'invalid Operation' I'm gonna mad...
of course I research ISAPI at this forum, and many people recommend 'http://user

and i tried it,

also same.
How can i solve this problem? has someone used this product named DS--K1T671?
Thanks!