Can not access KM docs by Webdav Protocol ( MS Web Folders, Portal Drive)

Question

Dear Community
I need help on access to KM by Web folder on WinXP. When I try to acces by WebDav URL,  i am getting an error like:
Could not open <webdav url adress> as a Web Folder.
We are recently updated to sps19.
That's what i have implemented... could you tell me if is anything wrong or missing,plese?:
ACL is updated with user and roles permissions.
System administration - Portal permissions - security zones-sap.com-Netweaver.KMC-low_safety-com.sap.km.cm has assigned read permissions for everyuser.
WebDav Protocol is enabled.
On URL Generator Service, Host is the right one and  Content Access Path + Viewer are /irj/go/km/docs.
On Standard user role, KM document iview, authentication scheme now is set to uidpwdlogon, but i had tried with default, basicauthethication but nothing successfully.
Parto of Authschemes.xml definition is:
     <authschemes>
        <!--  authschemes, the name of the node is used -->
        <authscheme name="uidpwdlogon">
            <!-- multiple login modules can be defined -->
            <authentication-template>
              ticket
            </authentication-template>
            <priority>20</priority>
            <!-- the frontendtype TARGET_FORWARD = 0, TARGET_REDIRECT = 1, TARGET_JAVAIVIEW = 2 -->
            <frontendtype>2</frontendtype>
            <!-- target object -->
            <frontendtarget>com.sap.portal.runtime.logon.certlogon</frontendtarget>
        </authscheme>
    <authscheme-refs>
        <authscheme-ref name="default">
            <authscheme>uidpwdlogon</authscheme>
        </authscheme-ref>
Do you know how can i resolve this issue?
Thanks in advance
Scottie

Answer 1

Solved
1.- The host in the URL gen service should be a FQDN including the port number
2.- Apply OSS notes:
Note 1243347 - portal User Agents
Note 1084683 - WebDAV clients do not work (eg PDR, MS Webfolder,MS clients)
Thanks anyway!