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How to Fix Cisco Anyconnect ‘Connection attempt failed’ on Windows 10
Some Windows users are reportedly getting the ‘Connection attempt failed‘ error when running the Cisco AnyConnect application in the hopes of establishing a virtual private network (VPN). This issue is reported to occur with Windows 8.1 and Windows 10.
Connection Attempt Failed with Cisco AnyConnect
As it turns out, this particular issue can occur due to several different common scenarios. Here’s a list of potential culprits that might be triggering this error code:
Now that you know every potential scenario that might be responsible for the apparition of the ‘Connection attempt failed‘ error, here’s a list of verified methods that other users have successfully deployed in order to bypass the error message:
1. Install every Pending Windows Update
As it turns out, one of the most common instances that might trigger this problem is a security update (3023607) that ends up affecting the default behavior regarding the TLS protocol renegotiation and fallback behavior.
According to some affected users, the issue was finally resolved after they run the Microsoft Update utility and installed every security and cumulative update including March cumulative security update for Internet Explorer (MS15-018) and Vulnerability in SChannel could allow security feature bypass: March 10, 2015 (MS15-031).
If you’re not certain that you have every available Windows update installed on your computer, follow the instructions below:
2. Run Cisco AnyConnect in Compatibility Mode (Windows 10 only)
If installing every pending update didn’t do the trick for you or you’re encountering the issue on Windows 10, chances are you’re dealing with an incompatibility issue. This most commonly occurs due to a Critical Windows 10 Update (3023607) that changes some details in regards to the SSL/TLS API in a way that breaks the Cisco AnyConnect app.
If you face this issue on Windows 10, the easiest way to fix it is to force the main executable (the one you use to launch Cisco AnyConnect) to run in Compatibility Mode with Windows 8.
In case you find yourself in this particular scenario, follow the instructions below to force the vpnui.exe executable to run in compatibility mode with Windows 8:
If you already tried forcing the vpnui.exe executable to run in compatibility mode with Windows 8 and you’re still seeing the same Connection attempt failed error, move down to the next potential fix below.
3. Uninstalling & hide the KB 3034682 update
If the first 2 methods did not work for you or were not applicable, the last resort would be to simply uninstall the problematic update that is causing the update on Windows 10 (3034682).
However, keep in mind that unless you take some steps to hide the problematic update, it will eventually find your way onto your computer and cause the same issue all over again after several system restarts.
But you can prevent this from occurring by using the Microsoft Show or Hide troubleshooter to hide the problematic update after you uninstall the KB 3034682 update.
If you’re looking for specific instructions on how to do this, follow the instructions below:
If the same issue is still occurring even after you went through the trouble of uninstalling and hiding the problematic update, move down to the next potential fix below.
4. Disabling Hyper-V (Windows 10)
As it turns out, it turns out that you can also expect to encounter this error due to a conflict between Cisco AnyConnect and the main Hyper-V service that’s enabled by default on Windows 10.
Several affected users that were also encountering this problem have reported that they finally managed to fix the ‘Connection attempt failed’ error by temporarily disabling Hyper-V and all associated services before rebooting the computer and using Cisco AnyConnect.
If you suspect this scenario might be applicable to your current situation, follow the instructions below to disable Hyper-V from the Windows Features menu:
5. Disable Network Connection sharing
If none of the methods above have worked for you, and you are currently sharing a network connection via the Microsoft Hosted Network Virtual Adapter, you might be able to resolve the ‘Connection attempt failed‘ error by disabling the shared network connection.
If this scenario is applicable to your particular scenario, several affected users have managed to fix this issue by accessing the Network Connections tab and modifying the default Sharing configuration so that network connection sharing is not allowed.
If you’re looking for specific step-by-step instructions on how to do this, follow the instructions below:
In case the same kind of problem is still occurring, move down to the next potential fix below.
6. Disable IE’S Ability to Work Offline via Registry Editor
If none of the methods above have proven to be effective in your case, it’s also possible to face this problem to the fact that Internet Explorer is configured to ‘work in offline mode’. IE’s Offline mode is notoriously known to conflict with a lot of VPN facilitators such as the Cisco AnyConnect software.
This would not be a problem if Microsoft didn’t remove the option to change this default behavior and made it so that the option now defaults to online.
Since there’s no longer an option to make this modification from the GUI menu, you’ll have to resort to a Registry modification.
Follow the instructions below to disable Internet Explorer’s ability to work in Offline Mode via Registry Editor:
Исправление AnyConnect не смог установить соединение с указанным безопасным шлюзом
Обновление: Перестаньте получать сообщения об ошибках и замедляйте работу своей системы с помощью нашего инструмента оптимизации. Получите это сейчас на эту ссылку
Сообщение об ошибке «AnyConnect не смог установить соединение с указанным безопасным шлюзом» появляется, когда пользователи пытаются подключиться к VPN с помощью клиента AnyConnect. Эта проблема возникает из-за того, что клиент AnyConnect VPN CISCO не может подключиться к удаленному серверу и блокировки происходят. Сегодня мы обсудим приведенное выше сообщение об ошибке, в том числе причины появления сообщения об ошибке и различные решения, которые вы можете применить для его устранения.
Как исправить AnyConnect не смог подключиться к указанной ошибке Secure Gateway:
Проверьте, работает ли ICS (Internet Connection Sharing).
Также убедитесь, что служба ICS не работает.
Ноябрьское обновление 2021:
Обновить настройки реестра
Другой, как вы говорите, меняет реестр, но это очень медленный процесс. Под Windows 8 Pro откройте regedit с командой execute и:
1) Перейдите в [HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ vpnva].
2) Измените значение в поле DisplayName на «Cisco AnyConnect VPN Virtual Miniport Adapter для Windows x64».
3) Попробуйте установить соединение.
Проверьте проблему в среде чистой загрузки.
CCNA, веб-разработчик, ПК для устранения неполадок
Я компьютерный энтузиаст и практикующий ИТ-специалист. У меня за плечами многолетний опыт работы в области компьютерного программирования, устранения неисправностей и ремонта оборудования. Я специализируюсь на веб-разработке и дизайне баз данных. У меня также есть сертификат CCNA для проектирования сетей и устранения неполадок.
connection attempt has failed anyconnect
[11/11/2013 1:55:55 PM] Ready to connect. [11/11/2013 1:57:05 PM] Contacting —.—.—.— [11/11/2013 1:57:07 PM] Please enter your username and password. [11/11/2013 1:57:08 PM] User credentials entered. [11/11/2013 1:57:08 PM] Establishing VPN session. [11/11/2013 1:57:09 PM] Checking for profile updates. [11/11/2013 1:57:09 PM] Checking for product updates. [11/11/2013 1:57:10 PM] Checking for customization updates. [11/11/2013 1:57:10 PM] Performing any required updates. [11/11/2013 1:57:15 PM] Establishing VPN session. [11/11/2013 1:57:15 PM] Establishing VPN — Initiating connection. [11/11/2013 1:57:16 PM] Disconnect in progress, please wait. [11/11/2013 1:57:29 PM] Connection attempt has failed. [11/11/2013 1:59:31 PM] Ready to connect.
Я попытался отключить брандмауэр и антивирус. Я не думал, что это будет иметь значение, поскольку мой ноутбук использует тот же брандмауэр и антивирус, и мне не нужно было его отключать. Мой ноутбук использует Windows 7 Home 64-bit, а мой компьютер с ошибкой использует 64-разрядную версию Windows 7 Ultimate.
6 ответов
Решением для меня было отключить общий доступ к подключению Интернета (ICS).
Чтобы устранить эту проблему:
Я вижу, что отключение ICS не работало для OP, но это работало для меня и многих других, по мнению различных форумов, кажется.
ответ Натана на этой странице не работал для меня, потому что флажки Allow other network users[. ] были очищены для всех все равно.
Я отключил ICS таким образом:
KB ID 0001279В DtdВ 31/01/17
Problem
We had a firewall fail at work this week, as part of the rebuild the latest OS was put on it, version 9.7(1). I thought no more about it until I tried to VPN in and got this;
I used my Windows 10 VM and that connected fine, only my MacBook could not connect, this VPN tunnel is a big deal I need it to get onto client’s networks. I tried my other VPN connections and every one was fine, only the recently rebuilt one didn’t work? Ive seen OSX throw a wobbly with AnyConnect in the past so I did a complete uninstall, В deleted the opt/cisco folder and put on the latest version (4.4.00243 at time of writing) no change.
Connection attempt has failed due to server communication errors. Please retry the connection
A look in the client message history showed me this..
No valid certificates available for authentication.
I checked my certificates, and the certificate on the firewall both they, (and the certificate chain,) were fine.
Debugging AnyConnect gave NO OUTPUT at all, but debugging SSL showed me this;
Try Googling that and getting a result! In fact that’s probably what brought you here.
Solution
If you change a Cisco OS and things like this stop working normally it’s because they’ve dropped support for something that’s got a security hole in it. In the wake of the Poodle Exploit I assumed it was an SSL/TLS problem, but that wasn’t it.
I was in the right ball park though, and a bit of lateral thinking and SSL cipher problems I’ve had with ASDM, made me think, what if it’s SHA that’s been dropped because everyone is dropping SHA1 cause it’s the hashing algorithm of Satan?
Well as soon as I added a SHA1 ciphers back in, everything started working again!
Disclaimer: SHA1 is bad, where practical all cert ciphers should be at least SHA256
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Hi all, I’m very new in AnyConnect and I’m doing something wrong.
If I navigate to https://myIP I can successfully log into the portal, download and install the AnyConnect Client and also CONNECT to the VPN.
But if I disconnect to the VPN, and try to login again through the try icon, I get a «connection attempt has failed».
So the only way I have to connect again is to navigate another time to the web portal and then, after login again, the VPN connection is successfully done.
Thanks for your help!
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Glad you worked it out. Please consider marking as answered and rating helpful post so this can be useful to others who may run into the same issues.
If this posts answers your question or is helpful, please consider rating it and/or marking as answered.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Are you using a Router or ASA has the VPN gateway? If you are using an ASA, check your DAP policy under Configuration, Network (Client) Access, Dynamic Access Policies. If there are policies there, chose the profile that is mapped to the tunnel you are connecting too and then go to «Access Method». Ensure «Web Portal» isn’t checked. If you want to be able use the portal and the client, you need to change it to one of the «Both» choices. If there is no DAP, we’ll have to dig a little deeper.
If this posts answers your question or is helpful, please consider rating it and/or marking as answered.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Hello Christopher, thanks for your answer.
I’m using an ASA, and in DAP I only have the DfltAccess, and I changed the Access Method from Unchanged to Both, but I have the same problem.
Now I have a question (sorry if it is obvious), using the portal, I provide the login/passwd, but using only the client it doesn’t ask me for credentials, it only shows the certificate error (cause it is self-signed), and when I accept it, the connection fails.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
When you go to login through the AC client, what is in the «Connect To:» box? It may be an issue regarding the AC profile that gets downloaded after successfully logging in and downloading the client via web portal.
**Please remember to rate helpful posts as well as mark the question as ‘answered’ once your issue is resolved. This will help others to find your solution faster.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Hi, in the connect To box there is the public IP of the ASA, so I think it might be correct. Then appears an Untrusted VPN Certificate warning, and after clicking «Connect Anyway» it shows the error.
I have the anyconnect-win-3.1.04063-k9.pkg client software, should I try a lower version?
Maybe I’ll try to create the certificate through a Windows Server CA and then import to ASA and to the client, so see if it solves the issue.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
First try this. Open the AnyConnect Client, go to the Preferrences tab, and make sure the box that says «Block Untrusted Servers» is NOT checked.
If this posts answers your question or is helpful, please consider rating it and/or marking as answered.
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Hi Christopher, that was the first I have to do in order to be able to connect when I connect to the VPN (through the web) for the first time. So I can confirm it is unchecked.
Thanks for the advice
» means nesting-related): — Failed at: @displayUserCertifications user_id [in template «custom.author-acclaim-certifications» at line 4, column 9] ——>
Do you have access to ASDM or a syslog server? It would be best if you could grab the exact error message in the logs when you try to connect.
Also, if you are using ASDM — make sure you have «Enable Cisco AnyConnect VPN Client Access on the intefaces in the table below» checked. Assuming you are using the «outside» interface, check that one and enable DTLS. Then click «Device Certificate» and make sure you have the correct certificate chosen for the SSL connection (probably the ASAs self signed certificate».
Make sure «Bypass interface access lists for inbound VPN sessions» is checked as well.
If this posts answers your question or is helpful, please cons />
Fix Cisco AnyConnect error Connection attempt failed
Some users of Windows 10 who use the Cisco AnyConnect tool on a regular basis, have come across an error that is called, Connection attempt failed. This usually happens when you’re attempting to run a virtual private network (VPN) but worry not because there are ways to solve it. It can also due to a network or PC issue and you are asked to verify internet connectivity and try again.
Cisco AnyConnect error Connection attempt failed
Let us discuss this from a more detailed perspective.
1] Open Cisco AnyConnect via Compatibility Mode
To do this, you must first source the primary executable file. Not everyone knows how to get this done, so if you fall under that category, then you will want to open the File Explorer and navigate to the following location:
After accessing the folder, please right-click on vpnui.exe, then select Properties.
From there, go to Compatibility > Compatibility mode. Finally, check the box where it says, Run this program in compatibility mode for.
Select Windows 8 or Windows 7 from the list, then hit Apply > OK.
Restart your computer, then attempt to run Cisco AnyConnect once more to see if the Connection attempt failed error still makes an appearance.
2] Disable Microsoft Hyper V in Windows 10
One other way to solve the Connection attempt failure is to turn off Hyper V in Windows 10. There are three easy steps to take in order to disable Hyper V.
As you will see from the article, there are multiple ways to disable Hyper V, so use the method that works best for you.
3] Turn off Internet Connection sharing
If the options above fail, then your next step is to disable Internet Connection Sharing from within Windows 10. It’s quite easy, and you will learn all you need to know once you’ve read every word.
Date: June 3, 2021 Tags: Network
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Vamien McKalin possesses the awesome power of walking on water like a boss. He’s also a person who enjoys writing about technology, comics, video games, and anything related to the geek world.
Исправление: AnyConnect не смог установить соединение с указанным безопасным шлюзом.
Сообщение об ошибке « AnyConnect не смог установить соединение с указанным безопасным шлюзом » появляется, когда пользователи пытаются подключиться к VPN с помощью клиента AnyConnect. Эта проблема возникает из-за того, что VPN-клиент AnyConnect не может успешно выполнить процесс соединения с удаленным сервером, и на его пути есть некоторые блокировки. Сегодня мы рассмотрим указанное сообщение об ошибке, включая причины появления сообщения об ошибке и различные решения, которые вы можете реализовать, чтобы избавиться от ошибки.
Что вызывает сообщение об ошибке «AnyConnect не смог установить соединение с указанным безопасным шлюзом»?
Чтобы обойти сообщение об ошибке, вы можете следовать приведенным ниже решениям, но обязательно перезагрузите компьютер и приложение, прежде чем переходить к другим исправлениям.
Решение 1. Отключение антивируса
Перво-наперво. В большинстве случаев проблема возникает из-за блокировки антивируса, что является распространенным сценарием. Следовательно, в таком случае вы должны попытаться отключить любой сторонний антивирус, который вы установили в своей системе, а затем попытаться подключиться к VPN с помощью AnyConnect. Надеюсь, это решит проблему.
Решение 2. Остановите службу подключения к Интернету
Время от времени служба ICS работает, что вызывает проблемы для клиента AnyConnect при подключении к VPN. Вам нужно будет отключить его, чтобы решить проблему. Вот как отключить службу:
Решение 3. Отключите общий доступ к подключению к Интернету (ICS)
Было несколько случаев, когда, если в Windows был включен ICS, пользователи сталкивались с этой проблемой. Чтобы отключить ICS, следуйте приведенным ниже инструкциям:
Если ваша проблема была вызвана включением ICS, это должно было исправить ее.
Решение 4. Выберите параметр Подключиться к текущей сети в AnyConnect VPN.
Иногда клиентский VPN Any Connect колеблется между разными сетями, поэтому вам нужно выбрать вариант подключения только к текущей сети. Это может решить проблему для вас. Вот как это сделать:
Решение 5. Попробуйте другое подключение
Иногда используемое вами интернет-соединение может иметь некоторые ограничения или может работать неправильно, что является причиной проблемы. В таком сценарии вам придется использовать альтернативное соединение, такое как Wi-Fi или мобильная точка доступа, чтобы узнать, можете ли вы подключиться к VPN.