Sync Gateway no longer sync widht the client, error "406 Response is multipart"

Question

What exactly does the error message "406 Response is multipart" and how can I solve the error?

Answer 1

406 NOT ACCEPTABLE

The target resource does not have a current representation that would be acceptable to the user agent, according to the proactive negotiation header fields received in the request1, and the server is unwilling to supply a default representation.

The server SHOULD generate a payload containing a list of available representation characteristics and corresponding resource identifiers from which the user or user agent can choose the one most appropriate. A user agent MAY automatically select the most appropriate choice from that list. However, this specification does not define any standard for such automatic selection

Source: https://httpstatuses.com/406

Answer 2

This error occurred when I login width the same user from different devices, which damages the user, after this SyncGateway does not synchronize with the user.