Error '8007052e'

error '8007052e'
/xpage_submit.asp, line 347

I seem to get this error when i type the file server name i.e. \\serverx\uploadfile\
Ive writen a code that creates and writes the information as a .doc on the fly, it works locally but when i try it on a browser it throws the error above ? does any one have any idea how i can get around or resolve this, ive been having trouble for two weeks.

I have given a lot of permissions but still cant seem to locate the problem, i have change NTLM(local security policy) nothing.. please help
Code
'********************************************************************************
' To create the file and send the email with attachments
'********************************************************************************
if Request.ServerVariables("server_name") = "spx.website.co.uk" then

UploadFolder = "\\serverx\uploadfile

fromID = strEmil
toID = ""
ccmails = ""
BCCID = "email@website.co.uk"


fromID = strEmil
toID = "email@website.co.uk"
BCCID = "email@website.co.uk"
if ((TotalR - TotalC) >=20000) then
'ccmails = "email2@website.co.uk," & strEmil
else
ccmails = "email2@website.co.uk" & strEmil
end if
end if


CurDate = replace(Replace(Replace(now(), "/", ""), ":", "")," ","")
FileNameStr = UploadFolder & "SPXchanges_" & CurDate & ".doc"


set FSO = server.CreateObject("Scripting.FileSystemObject")
set mytempfile = FSO.CreateTextFile(FileNameStr, True)

What's the error description text and what's line 347?