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Windows 10 WebDAV fails to connect over Internet with Network or DNS errors RRS feed

  • Question

  • There are lots of discussions on many forums about issues with the webclient and failure to connect to WebDAV services which are on the Internet (such as a hosting provider).

    I have spent 3 days trying each and every solution and still cannot connect to the WebDAV service.  Windows will intermittently connect, but 90% of the time will bring up a message "Windows can not access \\example.com@SSL@2078\DAVWWWroot check the spelling of the name..."

    The same service is reachable from Windows 10 x62 in a web browser which I type https://example.com:2078
    The same service is reachable from a client on my smartphone using: \\example.com@SSL@2078\DAVWWWroot
    The same service is reachable from a client on a ubuntu box using: \\example.com@SSL@2078\DAVWWWroot
    The service can not be reached from windows then using \\example.com@SSL@2078\DAVWWWroot

    1. Tried all other means to connect such as net use - did not work!
    net use U: \\example.com@SSL@2078\DavWWWRoot mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com@SSL\DavWWWRoot      mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com@2078\DavWWWRoot     mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com\DavWWWRoot          mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com@SSL@2078\           mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com@SSL\                mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com@2078\               mypassword /USER:myuser /PERSISTENT:YES
    net use U: \\example.com\                    mypassword /USER:myuser /PERSISTENT:YES

    2. Setting WebClient parameters for Basic Authentication to either 1 or 2 - - did not work!
    REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters" /V "BasicAuthLevel" /T REG_DWORD /D "00000001" /F 
    REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters" /V "BasicAuthLevel" /T REG_DWORD /D "00000002" /F 

    3. Limiting the SSL Cryptographic Mechanism (as by default Windows still can use SSLv3 and other outdated protocols) - did not work!
    REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Cryptography\Configuration\SSL\00010002" /V "Functions" /T REG_SZ /D "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P521,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA_P256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P521,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P384,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA_P256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384_P384,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA_P521,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA_P384,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA_P256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA_P521,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA_P384,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA_P256,TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,TLS_DHE_DSS_WITH_AES_256_CBC_SHA,TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,TLS_DHE_DSS_WITH_AES_128_CBC_SHA,TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_RC4_128_SHA,TLS_RSA_WITH_3DES_EDE_CBC_SHA"

    4. Tried creating entries in the local hosts file c:/Windows/System32/drivers/etc/hosts - did not work!
    123.1.1.1 example.com

    5. Tried setting the webclient AuthForwardServerList - did not work!
    REG ADD "HKLM\SYSTEM\CurrentControlSet\Services\WebClient\Parameters" /V "AuthForwardServerList" /T REG_SZ /D "https://example.com"

    6. Tried setting the Network provider order, so that the webDAV client was second - did not work!
    REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\NetworkProvider\Order"  /V "ProviderOrder" /D "LanmanWorkstation,webclient,cbfs6,vmhgfs,RDPNP"
    REG ADD "HKLM\SYSTEMCurrentControlSet\Control\NetworkProvider\HwOrder" /V "ProviderOrder" /D "LanmanWorkstation,webclient,cbfs6,vmhgfs,RDPNP"

    Saturday, November 16, 2019 5:40 PM

All replies


  • Hi ,

    This is a quick note to let you know that I am currently performing research on this issue and will get back to you as soon as possible. I appreciate your patience.
    If you have any updates during this process, please feel free to let me know.

    Best Regards,

    Candy


    Please remember to mark the replies as an answers if they help.
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    Monday, November 18, 2019 9:49 AM