Follow this steps to turn on diagnostic logging for remote network connections in order to troubleshoot difficulties in connecting to the networks by exposing more details of the traffic than are provided in the user interface. Those steps applies to Windows Server 2008, Windows Server 2008 R2 and Windows Server 7.
Step 1: Login Windows as user with membership in the local Administrators group, or equivalent.
Step 2: Open Network Settings window or Internet Connection window using following method: Open Run dialog box by pressing Windows logo key + R key together, then type
ncpa.cpl in it and click OK.
Step 3: Press ALT to display the menu bar.
Step 4: On the Advanced menu, click Remote Access Preferences.
Step 5: On the Diagnostics tab, select the Enable logging check box to enable logging for all remote access connections. After making one or more attempts to connect to the remote network, return to this dialog box, and then click Generate report.
Step 6: To clear logs created during previous connection attempts, click Clear Log.
Step 7: To generate a report, click Generate Report.
Step 8: To view the diagnostic report, click View report.
Step 9: To save the report to a file, click Save report to this file, and specify the location and the name of the file you want to create. Specify the location by typing it or by clicking Browse, and then browsing to the location you want.
Step 10: To send the report to an e-mail address, click Send report to this e-mail address, and then type the e-mail address to which you want to send the report.
Step 11: To quickly generate a more concise report, select the Generate summary report check box. Click OK to generate the report you requested.
Reference: Microsoft: Enable connection logging