I use an application from Ebro (Winlog.web) and, since last week when I restarted the laptop, when I tried tu run the application I received the message: "Unable to connect; Firefox can't establish a connection to the server at 127.0.0.1.;  The site could be temporarily unavailable or too busy. Try again in a few moments.;     If you are unable to load any pages, check your computer's network connection.;    If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web." The applicatin worked fine before. I have Windows7.

Hosts file seems to be intact:

"# Copyright (c) 1993-2009 Microsoft Corp.

This is a sample HOSTS file used by Microsoft TCP/IP for Windows.

This file contains the mappings of IP addresses to host names. Each

entry should be kept on an individual line. The IP address should

be placed in the first column followed by the corresponding host name.

The IP address and the host name should be separated by at least one

space.

Additionally, comments (such as these) may be inserted on individual

lines or following the machine name denoted by a '#' symbol.

For example:

#      102.54.94.97     rhino.acme.com          # source server

#       38.25.63.10     x.acme.com              # x client host

localhost name resolution is handled within DNS itself.

#    127.0.0.1       localhost

#    ::1             localhost

   "

Mace

For some reason that site is recognized as local to your machine (ip 127.0.0.0 is on your machine).  Have you changed your hosts file?  Does that application make changes to anything on your machine?

Mace

I suspect the sensor in in your local network and may reoute a certain port locally.

Just to see what is happening go to C:\windows\system32\drivers\etc.  In that folder is a file called "hosts".  Open that with notepad and look for any lines that do not have a pound sign "#" before it.  See snip

Check your HOSTS file to see if there is an entry causing this.

I changed nothing. I just restarted the computer in order to complete some automatic updates. The application has to read data from wireless temperature sensor through an wireless interface connected to my computer through a internet connection.