Wordpress and SFTP

I undertand you are trying to ugrade Wordpress but as I am unfamilar with the process so perhaps you could give a little more detail of the steps you are taking. It would also potentially be useful to know the client software you are using to conect via SFTP (etc) and upload a screenshot of the "form" you are speaking of.

Personally I usually do all my work on TKL appliances remotely using a combination of Web browser, Filezilla (cross platform SFTP client) and Terminal/PuTTY (SHH in Linux terminal works well, PuTTY under Windows).

I know the tools you use, but I want the management of the site to be as simple as possible because I am only the developer and others thats is unfamiliar with web, ftp, ssh... should be able to manage the site.

In this case it is an update/upgrade within worpress, this form do not always come up on every wp installation.

I did create a new install and this form do not show up, but glad if you have some sort of an idea? :)

They are similar but different:

SFTP = SSH FTP

FTPS = FTP over SSL

Glad you got it sorted, not sure how you'll go if you reencounter this issue.

I read the article and the following comments. It is not easy to pick out he right answer here.

The OP did not work for me, although after trying so many alternatives, it is hard to tell whether I have made a mess three times over that cannot be fixed.

Try this article 

http://www.chrisabernethy.com/why-wordpress-asks-connection-info/

Namely:

/var/www/wordpress/wp-content

Also there is a tweak to do to the config file too (to make sure it doesn't ask - in some scenarios it will still ask...). In wp-config.php add:

define('FS_METHOD', 'direct');

Note: it must be added before the line:

/* That's all, stop editing! Happy blogging. */