Dear peeps,

When i try to update our zenworks 2017 appliance , i go to online update .
I get this error " ServiceException: Type '' was not assignable to '' and did not have a custom field serializer. For security purposes, this type will not be deserialize."
this error i get in firefox.

In internet explorer i dont get that error and i can click on register , i choose online.
after put in the needed info it starts a registrator and after a while it get back but nothing changed and i can put in the info

any help?

greetings Wilfred