"Error: Client Not Ready To Read At State reconnecting" when try Huawei Sun2000

Hi. I'm trying to conect to my Huawei Sun 2000 by modbus TCP and when I deploy a Modbus Read module and configurated a client with ID 0 appears that error: "Error: Client Not Ready To Read At State reconnecting"

I installed the last version but reading a post tells that the version that fix that problem is the 12. I've downgraded to that version but this error continues.

Any ideas? Thanks for all.

pd.- that's my first post in this forum. Tnx to all.

Please stick to one post to avoid any confusion with people responding.