ISL Online Outage History

Started Oct 21, 2026, 03:30 PM UTC· resolved Oct 21, 2026, 03:30 PM UTC

1. resolved Oct 22, 2026, 08:11 AM UTC

   Update on the recent PHP vulnerabilities You may have seen news about two newly disclosed critical vulnerabilities in PHP (CVE-2026-109618 and CVE-2026-109619). Here's an update on how they relate to ISL Online. The ISL Online product is not affected. ISL Light, ISL AlwaysOn and the ISL Online servers that carry remote-support sessions do not use PHP. All services are running normally, with no interruption. ISL Online website: PHP is used only on our public website and licensing web servers, which handle the website, the account portal and the shop. Before a fix was available, we locked down the firewalls on those servers so that only Cloudflare and our own infrastructure can reach them. As soon as the security update for our server platform was released, we applied it to all of these servers within an hour. The website stayed available throughout. No action is needed on your end. Your sessions, devices and settings are not affected, and you don't need to update anything.

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Started Aug 28, 2026, 09:14 AM UTC· resolved Aug 31, 2026, 06:15 AM UTC

1. identified Aug 28, 2026, 09:14 AM UTC

   We have identified the root cause of the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions. This is caused by a recent update to how our ISL applications interact with the Windows Secure Attention Sequence (SAS) API. The interaction stops working when SAS is enabled, but the application allowed to generate SAS is set to None in the system policy. This issue only affects the latest version, 5.0.2551.150 (https://help.islonline.com/20067/502551147). As a workaround, affected users can either use the previous version of the ISL applications, or enable SAS generation on the remote computer by setting the policy to either "Ease of Access applications" or "Services and Ease of Access applications". Our team is working to develop and implement a solution as quickly as possible. We apologize for any inconvenience this may cause and will continue to provide updates on our progress.

2. monitoring Aug 28, 2026, 01:22 PM UTC

   We have implemented a solution to the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions. A fix is included in ISL AlwaysOn, ISL Light, and ISL Light Client version 5.0.2551.156 for Desktop, now available for hosted service users in all countries except Japan. We recommend updating to this version as soon as possible: https://help.islonline.com/20067/502551147 Our team is continuing to closely monitor the situation. We apologize for any inconvenience this may have caused and will continue to provide updates on the situation.

3. resolved Aug 31, 2026, 06:15 AM UTC

   We have resolved the issue affecting some ISL Online Cloud users with the Ctrl+Alt+Del shortcut not working during remote sessions. The fix is included in ISL AlwaysOn, ISL Light, and ISL Light Client version 5.0.2551.156 for Desktop. The service is fully operational, and our team is continuing to monitor the situation to ensure that there are no further issues. We apologize for any inconvenience this may have caused and appreciate your patience during this time.

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Started Aug 16, 2026, 04:06 PM UTC· resolved Aug 16, 2026, 04:06 PM UTC

1. resolved Aug 16, 2026, 04:06 PM UTC

   We have resolved the issue affecting ISL Online Cloud users with the delivery of two-factor authentication (2FA) login tokens by email, which prevented affected users from logging in. The issue was caused by a temporary email delivery problem at our email delivery provider and has since been resolved. The service is fully operational, and our team is continuing to monitor the situation to ensure that there are no further issues. We apologize for any inconvenience this may have caused and appreciate your patience during this time.

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Started Mar 09, 2026, 10:26 AM UTC· resolved Mar 09, 2026, 12:46 PM UTC

1. investigating Mar 09, 2026, 10:26 AM UTC

   We are currently investigating an issue where support emails sent to ISL Online are not being received. As a result, we are temporarily unable to offer support via email until this issue is resolved. Our team is actively looking into the root cause. In the meantime, we encourage customers who require assistance to reach out via our live chat: https://www.islonline.com

2. monitoring Mar 09, 2026, 10:59 AM UTC

   We have identified the root cause of the issue preventing support emails from being received and have applied a fix. We will continue to monitor the situation to ensure everything remains stable.

3. resolved Mar 09, 2026, 12:46 PM UTC

   This incident has been resolved.

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Started Nov 18, 2025, 12:10 PM UTC· resolved Nov 18, 2025, 04:43 PM UTC

1. identified Nov 18, 2025, 12:10 PM UTC

   We have identified an issue with ISL Online web pages not being available and have identified the root cause to be an issue with Cloudflare. We will continue monitoring the status of the issue and provide updates as soon as we receive them - we invite you to follow the Cloudflare status page for further information - https://www.cloudflarestatus.com/incidents/8gmgl950y3h7

2. identified Nov 18, 2025, 12:12 PM UTC

   We are continuing to work on a fix for this issue.

3. identified Nov 18, 2025, 04:41 PM UTC

   We are continuing to work on a fix for this issue.

4. resolved Nov 18, 2025, 04:43 PM UTC

   This incident has been resolved.

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Started Aug 26, 2025, 04:17 PM UTC· resolved Aug 28, 2025, 06:50 AM UTC

1. investigating Aug 26, 2025, 04:17 PM UTC

   We are currently investigating an issue affecting isl.gov.si users attempting to access help pages hosted at SlimFAQ. We apologize for any inconvenience this may cause. Our team is actively investigating the issue and working towards a resolution.

2. resolved Aug 28, 2025, 06:50 AM UTC

   The issue affecting isl.gov.si users attempting to access help pages hosted at SlimFAQ has been resolved. The service is fully operational, and our team is continuing to monitor the situation to ensure that there are no further issues. We apologize for any inconvenience this may have caused and appreciate your patience during this time.

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Started Apr 25, 2025, 07:39 AM UTC· resolved Apr 25, 2025, 11:07 AM UTC

1. investigating Apr 25, 2025, 07:39 AM UTC

   We are currently investigating an issue affecting ISL Online cloud users from SI,DE,CH,GB using ISL Light version 4.4.2447.71 where starting an on-demand session causes ISL Light to crash. We apologize for any inconvenience this may cause. Our team is actively investigating the issue and working towards a resolution.

2. identified Apr 25, 2025, 07:44 AM UTC

   We have identified the root cause of the issue impacting ISL Online cloud users from SI, DE, CH, GB using ISL Light version 4.4.2447.71. This version has been made unavailable for download. Users who have already downloaded it should re-download ISL Light using the following link to get the previous stable version (4.4.2447.55), which does not experience the crash: https://www.islonline.net/start/ISLLight We apologize for any inconvenience this may cause and will continue to provide updates on our progress.

3. resolved Apr 25, 2025, 11:07 AM UTC

   We have removed the problematic ISL Light version 4.4.2447.71 from our ISL Online cloud service. Users will be offered previous stable version 4.4.2447.55 when downloading ISL Light. A fix will be prepared for the root cause which caused the crash in ISL Light 4.4.2447.71 and a new version of ISL Light will be released. We apologize for any inconvenience this may have caused.

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Started Feb 04, 2025, 12:44 PM UTC· resolved Feb 10, 2025, 01:57 PM UTC

1. investigating Feb 04, 2025, 12:44 PM UTC

   We are currently investigating an issue affecting ISL Online users when escalating sessions to administrative mode on remote Windows devices. We apologize for any inconvenience this may cause. Our team is actively investigating the issue and working towards a resolution.

2. identified Feb 04, 2025, 12:45 PM UTC

   We have identified the root cause of the issue affecting ISL Online users when escalating sessions to administrative mode on remote Windows devices. Our team is working to develop and implement a solution as quickly as possible. We apologize for any inconvenience this may cause and will continue to provide updates on our progress.

3. monitoring Feb 04, 2025, 12:47 PM UTC

   The issue with administrative mode escalation has been identified to be caused by Microsoft Defender. Disabling Microsoft Defender or adding appropriate exclusions on the remote device removes the problematic delay. Our team is actively working with Microsoft in order to get the false positive detections removed and the delay in administrative mode escalation removed. We apologize for any inconvenience this may have caused and will continue to provide updates on the situation.

4. monitoring Feb 06, 2025, 08:18 AM UTC

   The issue with administrative mode escalation has been identified to be caused by Microsoft Defender. Disabling Microsoft Defender or adding appropriate exclusions on the remote device removes the problematic delay. As a temporary solution, we recommend that users advise their clients to utilize ISL Light's join mode when entering a session via a session code. Alternatively, clients can use the link below, which downloads ISL Light and launches it directly in join mode: https://www.islonline.net/download/ISLLight?cmdline=--connect%20%22%22 Our team is actively working with Microsoft in order to get the false positive detections removed and the delay in administrative mode escalation removed. We apologize for any inconvenience this may have caused and will continue to provide updates on the situation.

5. monitoring Feb 06, 2025, 10:30 AM UTC

   We are continuing to monitor for any further issues.

6. monitoring Feb 08, 2025, 06:46 PM UTC

   We have released a beta version of the ISL Light Client, which addresses the Windows Defender delay issue. Please direct your clients to use the following link to join your ISL Light sessions: https://www.islonline.net/start/isllightclient?branch=any&stable_since=2025-02-08 We are actively working on a new official release that will include this fix. Thank you for your patience and understanding.

7. monitoring Feb 10, 2025, 08:51 AM UTC

   The official release of the ISL Light Client, which includes the fix for the Windows Defender delay issue, is now available for server license users as well as cloud license users in SI, DE, CH, and GB. We are currently preparing the release for cloud users in other regions and will make it available shortly. We recommend instructing your clients to download the latest version of the ISL Light Client from our downloads page - https://www.islonline.net/start/ISLLightClient Please note that if your clients join a session via the join page or a link generated through ISL Light, the latest version will already be automatically used. Server license users should perform an update of their ISL Conference Proxy server to download the latest programs, including the newly released ISL Light Client. If you experience any issues, we kindly ask you to report them to our support team at [email protected]. Thank you for your continued support.

8. resolved Feb 10, 2025, 01:57 PM UTC

   The official release of the ISL Light Client, which includes the fix for the Windows Defender delay issue, is now available for all users except Japan. We recommend instructing your clients to download the latest version of the ISL Light Client from our downloads page - https://www.islonline.net/start/ISLLightClient Please note that if your clients join a session via the join page or a link generated through ISL Light, the latest version will already be automatically used. Server license users should perform an update of their ISL Conference Proxy server to download the latest programs, including the newly released ISL Light Client. If you experience any issues, we kindly ask you to report them to our support team at [email protected]. Thank you for your continued support.

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