I've just started to see this myself... I have Contribute CS4, and when I try and create a site connection, I can't verify my location..

I've even tried just putting in c:\temp and it doesn't like it. I can navigate just fine to the drive location using the CHOOSE option, and it just won't verify it... Is there a fix for this?

I have a similar issue,  setting up a website on a VPS. I am unable to get Contribute CS4 to connect via FTP.   I have ran through the check list ,found in the support section, of ftp commands that Contribute uses and manually tested them, all were working fine.  I downloaded an ran ftp server checker, all sections were marked as successful.  I even verified my FTP was on the compatiable ftp list and was able to connect to it with a ftp client. Contribute still refuses to connect even with root access.  Has anyone ran into this problem and found a solution yet?

I found a .htacess file in the main directory with this in it:

RewriteEngine on

RewriteBase /

RewriteRule (.*).htm$ /$1.php

I removed the file and I can now connect fine.

Thanks, Virginia; your solution worked for me. 

Hey folks...I know this thread is a bit old, but I was seeing the same issue and resolved it using a different approach.  It seems that the “Contribute cannot verify your connection information” error is Contribute's "go to" error when anything bad happens.  Thanks for the in-depth error message, Adobe.  In my case, this was happening during the middle of a server migration.  The issue was that Contribute basically asks for 3 pieces of information to get you started:

                1. The web URL for you site (which should look like http://www.contributeisterrible.com

                2. The method you wish to use to connect (Network, FTP, SFTP)

                3. The path to your website (on a network, this might look like \\mywebserver.contibuteisterrible.com\wwwroot , whereas on an FTP/SFTP sever, you'd specify the name or IP of the SFTP/FTP server and provide a valid username and password)

Here's the kicker...Contribute seems to care FAR TOO MUCH about the IP addresses returned during this process.  So, in my case (IP addresses have been changed to protect the innocent and all that good stuff), my website was still living on 192.168.10.100, but the site files I wanted to start editing were living on 192.168.10.150.  Contribute won't allow this.

To see if this is your problem when trying to set up a connection, do the following:

                1. Open a command prompt and ping your website's URL and see what IP is returned (in my example, that would be "ping www.contributeisterrible.com")

                2. In the same command prompt, ping the server holding your files and see what IP is returned (in my example, that would be "ping mywebserver.contributeisterrible.com")

                3. The IP's returned from steps 1 and 2 must be the same...if they aren't, Contribute won't connect to the site

                4. If you're trying to set up an "FTP/SFTP" connection, you'll need to know the name of the server holding your web files...this may or may not be the same as the name of your FTP/SFTP server (in most cases, it isn't since many places separate FTP/SFTP away from web content and web application servers)

If for some legitimate reason the IP's are different (for example, you have a webserver with multiple NIC's or IP's, or you're in the middle of a server migration, or you just want to test something, or DNS is configured such that the web URL returns a different IP than the server name), you can rectify the difference by tweaking your HOSTS file (in Win7, it's at C:\Windows\System32\Drivers\etc).  Just add entries similar to the following:

1. 192.168.10.100  www.contributeisterrible.com
2. 192.168.10.100  mywebserver.contributeisterrible.com

This will force your computer to see both the server share and the site URL at the same IP address and resolve the issue.

If this doesn't fix ya, well...sorry