C# Active Directory Invoke “ChangePassword” cannot contact domain -

our custom application built on asp.net c# uses active directory classes working fine change password of active directory users, stopped working below updates installed on server

https://support.microsoft.com/en-us/kb/3167679

https://support.microsoft.com/en-us/kb/3177108

now our password manager application not able change password. un-installed updated, , started working fine. have support microsoft not willing assist on 1 treat coding issue. me seems active directory issue working earlier. application thows below exception invoke changepassword function:

the system cannot contact domain controller service authentication request. please try again later. (exception hresult: 0x800704f1)

userentry.invoke("changepassword", new object[] { currentpassword, newpassword }); //this line gives error

i looked @ internet, , seems many people/company having issue after ms update.

could please let me know if there other way around issue without un-installing updates?

is microsoft planning release different path or security update overcome scenario?

any highly appreciated.