In Safari, the error will show as “Safari Can’t Open the Page. ERR_CONNECTION_TIMED_OUT error in Edge Safari took too long to respond.” In Edge, however, it does also contain the “ERR_CONNECTION_TIMED_OUT” error. In Microsoft Edge, the error will show as “Hmmm… can’t reach this page. ERR_CONNECTION_TIMED_OUT error in Firefox Microsoft Edge In Mozilla Firefox the error will show as “The connection has timed out.” The server at is taking too long to respond. “ERR_NETWORK_CHANGED” and “ERR_CONNECTION_REFUSED” are two very closely related errors that can usually be solved with the same troubleshooting steps below.Īnother common error code that appears under ‘This site can’t be reached’ is the DNS_PROBE_FINISHED_NXDOMAIN, which is a DNS error that essentially means the domain that was requested doesn’t exist.īelow are a few examples of how the error might present itself in different browsers. But most of them have the same or similar meaning. took too long to respond.” ERR_CONNECTION_TIMED_OUT error in Chromeĭue to all the different web browsers, operating systems, and servers, the error can present itself in a number of different ways. In Google Chrome you might see this as “This site can’t be reached. After which it will return an “ERR_CONNECTION_TIMED_OUT” error, indicating a communication problem. When you visit a website and it doesn’t load, your browser will try for around 30 seconds or so until it terminates the connection. It’s particularly common on shared hosting where your memory limit is restricted. However, that’s not always the case.Īccording to the WordPress support documentation, a connection timed out error appears when your website is trying to do more than your server can manage. I haven't had any time to check this in detail, but I guess it was "only" some issues with cached credentials.What is the ERR_CONNECTION_TIMED_OUT Error?Īn ERR_CONNECTION_TIMED_OUT error typically means there is something wrong with your local network connection. I guess the issue was not related to Windows Updates or to Cisco ISE, but just a bad configuration in our group policy. The Mschap v2 authentication worked without an issue. I did some tests with a non-domain joined client and when setting the authentication manually, everything was working fine. This led us to believe that the client was not sending the information at all, but I guess the client was just sending invalid user credentials due to caching and ISE masked them as "Username". The issue was only related to the user authentication and kicked in as soon as a user logged on to the client.ĭue to another option in Cisco ISE, invalid credentials were shown in the live logs as "Username" or "Username\Username". The computer authentication with Mschap v2 was still working fine. But at some point, the cached user credentials were not valid anymore and the Mschap v2 authentication stopped working for these users. It looks like Windows cached some of the user credentials (which worked fine for a couple of days or weeks). It looks like the issue we encountered came from a Windows option named "Enable single sign on for this network" on the authentication tab on the network adapter that was enabled in our group policy. I was wondering if anyone else experienced some issues with user authentication lately.Ĭould this issue be related to a new Windows update? The Policy Sets and Active Directory connection are still looking fine. We haven't done any changes regarding 802.1x and we haven't done any updates on Cisco ISE. As soon as the user logged out, the client authenticated successfully. The client response was empty, so either the client refused to communicate with ISE or the authentication was never send by the client.Ĭomputer authentication still works fine. As soon as the user logged in, the client tried to authenticate with the username and failed. The Windows 10 Clients (21H1) are connected to the lan with computer authentication. This morning, all of a suddon, alot of users have been unable to authenticate with Cisco ISE 2.7. Mschapv2 User auth was working fine in our environment for the last 4 weeks (We implemented this recently). Is anyone else experiencing issues with PEAP(Mschapv2) User authentication?
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