Query on System.DirectoryServices.ActiveDirectory Csharp

Hi,

I am using Domain object in System.DirectoryServices.ActiveDirectory namespace. When ever I query domain details using Domain.GetCurrentDomain or Domain.GetDomain, it establishes connection with domain controller. This connection can be seen with "netstat -ano|findstr 389" command.

Code:

Domain dom = Domain.GetCurrentDomain();

My question is, how to close the connection ? The only way I can close the connection is to dispose the Domain object. Since I have cached the Domain object in my code I don't want dispose it. The problem it raises is, 'ESTABLISHED' state remains for some time later it changes to 'CLOSE_WAIT'.

netstat -ano | findstr 389
  TCP    10.241.93.168:51291    154.1.124.156:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:51297    154.1.124.154:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:51302    154.1.124.158:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:51320    154.1.124.155:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:51323    154.1.124.153:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:51332    154.1.124.157:389      CLOSE_WAIT      8028
  TCP    10.241.93.168:53399    148.86.153.162:389     CLOSE_WAIT      8028
  TCP    10.241.93.168:53436    139.172.150.15:389     CLOSE_WAIT      8028

For security reason I need to eliminate this stale connection. Do let me know if you have any suggestions.

Thanks,Santhosh