Ok,not sure what is happening but it seems something is broken with your ASP.NET installation since not even ping is working.
Could you please try the following from an elevated command prompt:
1) notepad %windir%\ServiceProfiles\localservice\appdata\local\temp\wmsvc\apphost.config
Please paste the content of <site> and the <ipSecurity> elements
2) netsh http show sslcert
Please paste the content of the one for 8172 (or whatever port you've configured)
3) netsh http show urlacl
Please paste the content of the one for 8172
4) If possible, please install the Debugging tools for Windows:
32 bit: http://www.microsoft.com/whdc/devtools/debugging/installx86.mspx
64 bit:http://www.microsoft.com/whdc/devtools/debugging/install64bit.mspx
Then run the following commands:
a) Attach WINDBG to the WMSvc.exe:
windbg -pn wmsvc.exe
b) Load the SOS.dll and set a breakpoint if a managed exception happens
.loadby sos mscorwks
sxe clr
c) then Go...
g
d) Finnaly if it breaks down which will eventually happen when you try to connect just print the exception and the callstack and send it to us:
!pe
!clrstack