In case you don’t know, when you visit a website that uses HTTPS, it also offers an SSL certificate to the browser in order to verify the website’s identity. Although it may contain lots of things inside it, one of them is the URL of the website. So if the certificate does not match the URL to what you entered, you will most likely get the “Server’s certificate does not match, ERR CERT COMMON NAME INVALID” error which indicates that the connection is not private and the site may try to steal your data but worry not, as this post will guide you in resolving this issue.
To fix the ERR_CERT_COMMON_NAME_INVALID error, here are some suggestions that might help.
If you own the website where you’re getting the error, then you might have to check if the website’s certificate is installed properly and configured on the server as it could be the reason why you’re suddenly getting the error.
You can also try to cross-check the Windows Hosts file to find out if the website you are trying to open has been blocked, because if it is, then it’s no wonder why you’re getting the ERR_CERT_COMMON_NAME_INVALID error. There are instances when some third-party application modifies the file and adds some websites to the blocklists. So if the website is indeed blocked, you need to remove it from the list.
You might want to change your DNS to Google Public DNS as it could also help you in fixing the ERR_CERT_COMMON_NAME_INVALID error in Chrome. To do so, follow the steps below.
In case you don’t know, there is actually a built-in malware scanner and cleanup tool in Chrome that helps you get rid of any unwanted ads, pop-ups, and even malware, as well as unusual startup pages, toolbars, and other things that could affect the performance of the browser. In addition, this built-in tool in Chrome might also help in fixing the ERR_CERT_COMMON_NAME_INVALID error.
Resetting Chrome can also help you get rid of the error. Resetting Chrome means restoring its default settings, disabling all the extensions, add-ons, and themes. Aside from that, the content settings will be reset as well and the cookies, cache, and site data will also be deleted. To reset Chrome, here’s what you have to do:

The greatest lag and server crashes are pinpointed to game-creating events. When a player creates a new online game, the server needs to pull a lot of details from the database and make a game, due to some legacy code present this process takes some time and it is demanding a bit on the server-side, and although code was optimized to cater to more modern approach some legacy code still remains.
Another thing that was spotted to affect performance itself is player behavior, to be more specific, modern gamer behavior. Where players find good builds and runs on the internet and then go to farm-specific areas or bosses for loot or experience points, which in return boils down to making plenty and short runs that are made by creating games and after run eliminating them. Now pair that with the previous statement about legacy server and database code and you can add 1 and 1 and see how this might be an issue.
A lot of short games over legacy code are placing games in a state it was not designed for back in 2001 and therefore we have issues. Sadly solutions without completely rewriting the whole code are not very promising and they include rate limiting, which will prevent players to create many games in succession in a short period of time and maybe even login queues to drop a load on servers.
Blizzard reached to people in the whole company, even old diablo 2 developers to ask for advice and they say that they are working on solutions so they could lift limitations and have everything running fine.
Error Causes
In its most basic essence, Error Code 0xc00000fd appears when a program can not be initiated. It can occur when a file or program is corrupted, incompatible with the current version of the operating system, or out of date.
This error code occurs primarily in Windows but is also present in previous editions of the operating system. The symptoms of this error and the resolution methods for each of these systems are essentially resolved in the same way.
Common symptoms include:
There are several different things that Windows 10 users can do to try to fix the appearance of Error Code 0xc00000fd on their machine. Some of these methods are fairly simple for the average user, while others may require advanced knowledge and comfort with diving into the deeper tools and settings of the Windows operating system. If you have difficulty in implementing the methods below, contact a qualified Windows repair technician to assist you in the resolution of the error code.
Error CausesError Code 0xc00000fd can arise when program files are not recognized properly by the operating system, when the operating system is no longer compatible with the program being run, when files are missing or corrupted, or when the program has been changed in a substantial way. Each of these causes requires a different method of resolution.
“This app wants to access your pictures” or “This app wants to access your account info”both of which are followed by two buttons that will ask you to Allow or Deny the action. You can always click on any of the given options. This will determine the permission of the application. Users in Windows 10 are given the option to either allow or deny applications in accessing their account information like name, picture and other account information. Thus, in this post, you will be guided on how you can change the Privacy settings of these apps to allow or deny them permission to access not just your account info but for all users, as well as specific apps in Windows 10. The user account information is part of the Privacy data in Windows 10 that you can control easily using the Settings app. In fact, you can revoke or grant access permission for your account information, all the users and specific applications to do that, follow each one of the instructions provided below carefully.
“This policy setting allows you to control whether a domain user can sign in using a convenience PIN. If you enable this policy setting, a domain user can set up and sign in with a convenience PIN. If you disable or don’t configure this policy setting, a domain user can’t set up and use a convenience PIN. Note: The user’s domain password will be cached in the system vault when using this feature. To configure Windows Hello for Business, use the Administrative Template policies under Windows Hello for Business.”