How to fix the issue with the slow authentication

Slow logon times can be quite difficult for both end users and administrators. Users may encounter slow logon delays for a number of reasons, but those that occur most often are Network bandwidth issue, Wrong Site mapping, DC resource performance issue, profile loading, long GPO and script processing, user print queue creating, and virtualization system storage. There are better options to make the logon process more effective and quicker for end users than the workarounds that IT administrators may find for some of these problems.

Improve Network bandwidth

Enterprise networks need enough bandwidth to serve mission-critical programmed and corporate goals. However, a number of things may prevent the effective utilization of that bandwidth.
The maximum capacity of a network connection to transfer data across a link is measured as network bandwidth. However, speed does not refer to bandwidth. The speed at which data is transmitted is described by the term throughput. Network bandwidth also cause the slow user logon. Check the network usage graph to see if the network link is using more bandwidth than it is supposed to.

Correct AD Site mapping

Please map the user’s subnets to the closest AD site to prevent slow authentication for the user. Additionally, keep in mind that unattended subnets in AD infrastructure will receive authentication from any domain controller in your domain rather than the closest and local domain controller.

Improve DC resource performance

DC resource performance issue also cause the slow login issue. If DC resources highly utilized by processes, can impact on user authentication request and respond slowly, or isn’t responding at all to client service requests for authentication or directory lookups.

Performance tuning Active Directory is focused on two goals:

• Active Directory is optimally configured to service the load in the most efficient manner possible
• Workloads submitted to Active Directory should be as efficient as possible

This requires proper attention to three separate areas:

• Proper capacity planning – ensuring sufficient hardware is in place to support existing load
• Server side tuning – configuring domain controllers to handle the load as efficiently as possible
• Active Directory client/application tuning – ensuring that clients and applications are using Active Directory in an optimal fashion

Profile loading

Overstuffed roaming profiles are one of the primary causes of slow logon times. Roaming profiles are the most popular profile type since they keep customized settings while being consistent between servers and individual sessions.

We can improve the sign-in experience over slow links by configuring the user profiles as follows:

• Use the Limit profile size policy to restrict the size of the profile.
• Redirect user folders to locations outside the profile (for example, save user files in a OneDrive for Business folder).
• Use the Exclude directories in roaming profile to selectively exclude folders.

Reduce long GPO and script processing

Your logon time will increase if you have a lot of group policies that carry out complicated settings or operations (such software limitations).

Minimize linking Because there may be a chance deleting the original one with seeing who else are using this GPO.Minimizing linking for simplicity.

Disable unused part of a group policy object-Group Policy has two components- Computer and User configurations. Only settings that are Not configured, then avoid processing those settings by disabling the unused configuration.

So, that’s all in this blog. I will meet you soon with next stuff. Have a nice day!!!

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