Dreamweaver CS6 FTP issues

I am a computer lab manager at a major university and we are experiencing connection issues within Dreamweaver. I am unable to establish an ftp connection in Dreamweaver in our normal lab environment. The error message is: " An FTP error occurred - cannot make connection to host. The network connection is unavailable. Please verify and try the action again."

The impacted lab computers are running Windows 7 and the Mac labs do not experience this problem. The ftp log within Adobe does not contain any information.
 
I am pretty sure this is related to one of the policies applied through the GPO since I can connect with virtually any other ftp client such as Filezilla, CuteFTP, and so on; and Dreamweaver works when I do not apply the GPO by logging in with a local account instead of a domain account. This also leads me to believe it is not a permissions issue either since the local accounts do not have any additional permissions.
 
My question is "What Windows group policy setting prevents Dreamweaver from establishing a connection but allows other applications to connect easily?" I have gone through the policies and have seen nothing that even comes close to being obvious or not so obvious.I don't think it is related to the firewall settings since the same firewall rules are aplied with or without the group policy being applied.
 
Any ideas? I really need to correct this by eliminating or modifying the specific policy. Trying to find it by the process of elimination is not a reasonable solution.
 
Thanks in advance for any help you can provide. I have searched through the Adobe forums and other support sites with no success.
jdvandyAsked:
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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
Hi,

You will need o check the GPO for any firewall configuration for port 21

Deploying Windows Firewall Settings With Group Policy

http://technet.microsoft.com/en-us/library/bb490626.aspx

Also you can run "rsop.msc" at the command prompt on the affected machine to collect the policies in operation

http://support.microsoft.com/kb/323276

Is there any log in the event viewer for this error?

Regards
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Jason C. LevineNo oneCommented:
Dreamweaver's internal FTP client is absolutely horrible and frequently chokes and dies when met with the slightest resistance from security policy.  

When you go to Site | Advanced | FTP Log and attempt to connect, what does DW return?
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jdvandyAuthor Commented:
Thanks giveandtake for the response.

You will need o check the GPO for any firewall configuration for port 21

Deploying Windows Firewall Settings With Group Policy

http://technet.microsoft.com/en-us/library/bb490626.aspx

Also you can run "rsop.msc" at the command prompt on the affected machine to collect the policies in operation

http://support.microsoft.com/kb/323276

Is there any log in the event viewer for this error?

I have checked the GPO for firewall settings with no success. Also, a GPO setting for port 21 would have a negative impact on other ftp clients which continue to work without issue while the GPO is in effect.

The ftp log in Dreamweaver remains silent and the Windows event log has not yielded any helpful information either.
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jdvandyAuthor Commented:
Thanks jason1178 for the response.

Dreamweaver's internal FTP client is absolutely horrible and frequently chokes and dies when met with the slightest resistance from security policy.  

When you go to Site | Advanced | FTP Log and attempt to connect, what does DW return?

The ftp log within Dreamweaver remains blank before, during, and after the error. This may be a result of Dreamweaver not trying to establish the connection since the error says "The network connection is unavailable." However, I can start a different application side-by-side with Dreamweaver and establish an ftp connection without issue.

I agree that the ftp client in Dreamweaver is horrible and the Adobe support forums are filled with recommendations to abandon in it in favor of any other ftp client. And while that would be a suitable alternative on a personal level, it is not acceptable to the faculty member.
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Jason C. LevineNo oneCommented:
Can you ask that dreamweaver.exe be added to the exceptions list?
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jdvandyAuthor Commented:
Can you ask that dreamweaver.exe be added to the exceptions list?

I have added Dreamweaver.exe to the exception list. It has not had any impact on the error or the ability to connect while under the GPO.
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Davis McCarnOwnerCommented:
Everything in your post says it is a permissions issue and an easy test would be to check the FTP log when using one of the local accounts.
The Dreamweaver log folder is somewhere in Appdata which is a protected folder in 7 and domain users, by default, will be denied all kinds of access.
If what I said bears out, create a group named Dreamweaver, add everybody who needs it to that group, and grant that group full access to the Appdata\<Local, LocalLow, or Roaming>\Adobe folder.
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jdvandyAuthor Commented:
Thank you for your response Davis McCarn but I do not believe this is a permission based problem. I was able to make the connection when using a domain account without the GPO applied without modifying an folder permissions.
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Davis McCarnOwnerCommented:
And they were a standard user account?
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jdvandyAuthor Commented:
Thanks to everyone who tried to help. I eventually rebuilt the entire group policy for the impacted lab computers and the problem disappeared. I still do not know the exact policy that prevented connection through Adobe but I am closing this question.
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jdvandyAuthor Commented:
No one was able to provide a solution that actually fixed the problem.
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