User Profile Connector not populating AD containers

Hi,

Having timeout when trying to populate containers from AD.

Here's the log from event viewer that appears after 6 minutes:

Event code: 3001 
Event message: The request has been aborted. 
Event time: 5/18/2014 9:30:21 AM 
Event time (UTC): 5/18/2014 6:30:21 AM 
Event ID: 89b7b8125870479b80c9f5e303dc934d 
Event sequence: 211 
Event occurrence: 3 
Event detail code: 0 

Application information: 
    Application domain: /LM/W3SVC/963232686/ROOT-3-130448646668689523 
    Trust level: Full 
    Application Virtual Path: / 
    Application Path: C:\inetpub\wwwroot\wss\VirtualDirectories\*****\ 
    Machine name: ***** 

Process information: 
    Process ID: 8916 
    Process name: w3wp.exe 
    Account name: *****\*****

Exception information: 
    Exception type: HttpException 
    Exception message: Request timed out.

Request information: 
    Request URL: http://centraadmin:xxxxx/_layouts/15/EditDSServer.aspx?ApplicationID={GUID}
    Request path: /_layouts/15/EditDSServer.aspx 
    User host address: xxx.xxx.xxx.xxx 
    User: *****\***** 
    Is authenticated: True 
    Authentication Type: NTLM 
    Thread account name: *****\***** 

Thread information: 
    Thread ID: 103 
    Thread account name: *****\***** 
    Is impersonating: False 
    Stack trace: 

Custom event details:

I've seen some related posts so I've already increased:

<httpRuntime executionTimeout= "3600 ">

UPA proxy ImportConnAsyncTimeout = 1800

UPA proxy LdapConnectionTimeout = 1800

UPA FIMWebClientTimeOut = 1800000

389 opened between SharePoint and DC

I tried to get also from dedicated DC

I can configure Sync directly from FIM Manager and I can see every OU in there.

Any ideas?

Thanks