Skyhigh Client Proxy Known Issues

Environment

Skyhigh Client Proxy (SCP) - all versions

Summary

Recent updates to this article

Date	Update
October 26, 2023	Added SCP 4.8.0 release details.
August 18, 2023	Added SCP 4.6.3 and 4.7.1 release details.
July 5, 2023	Added SCP 4.7.0 release details.
June 12, 2023	Minor formatting changes; no content updates.
May 19, 2023	Added SCP 4.6.1 Hotfix release details.
March 31, 2023	Updated the following: Added SCP 4.6.0 release details in the "Product Release Information" section Updated MCP-5184 in the "Non-critical Known Issues" section

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For a list of SCP known issues applicable in ePolicy Orchestrator (ePO) Cloud, see KB79063 - ePolicy Orchestrator Cloud and Cloud Point Product Known Issues.

Contents:
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Product Release Information

SCP Version	General Availability (GA) Release Date	Release Notes
SCP 4.8.x
SCP 4.8.0	October 26, 2023	Release Notes
SCP 4.7.x
SCP 4.7.1	August 17, 2023	Release Notes
SCP 4.7.0	July 4, 2023	Release Notes
SCP 4.6.x
SCP 4.6.3	August 17, 2023	Release Notes
SCP 4.6.1	May 18, 2023	Release Notes
SCP 4.6.0	March 29, 2023	Release Notes
SCP 4.5.x
SCP 4.5.2	January 27, 2023	Release Notes
SCP 4.5.1	November 30, 2022	Release Notes
SCP 4.5.0	October 14, 2022	Release Notes
SCP 4.4.x
SCP 4.4.2	September 16, 2022	Release Notes
SCP 4.4.1	June 15, 2022	Release Notes
SCP 4.4.0	May 31, 2022	Release Notes
SCP 4.3.x
SCP 4.3.2 (Hotfix 1)	macOS — April 14, 2022	-
SCP 4.3.1 (Hotfix 1)	Windows — March 24, 2022	-
SCP 4.3.0¹	macOS — December 14, 2021 Windows — November 22, 2021	Release Notes
SCP 4.1.x
SCP 4.1.5 (Hotfix 1)	September 29, 2021	-
SCP 4.1.4 (Hotfix 1)	July 19, 2021	-
SCP 4.1.2 (Hotfix 1)	May 5, 2021	-
SCP 4.1.1 (Hotfix 1)	April 21, 2021	-
SCP 4.1.0	April 14, 2021	-
SCP 4.0.x
SCP 4.0.1 (Hotfix 1)	February 7, 2022	-
SCP 4.0.0	January 12, 2020	-
SCP 3.2.x
SCP 3.2.2 (Hotfix 1)	February 7, 2022	-
SCP 3.2.0	August 30, 2020	-

¹	A feature release only. No issues were resolved in this release.

Issue resolutions in updates and major releases are cumulative; Technical Support recommends that you install the latest version. To find the most recent release for your product, go to the Product Downloads site.

Critical Known Issues

Reference Number	Related Article	Found Version	Fixed Version	Issue Description
		4.5.x		Issue: SCP 4.5.x for Windows isn't compatible with ENS Major Version 10.7.0.1192.5 - Sep-2021 Release (Update 9). Solution: Update to the ENS 10.7.0.5264.1 - Nov 2022 release (Update 13) or a later version.
MCP-5232	KB96203	4.3.x, 4.4.x, 4.5.0	4.5.1	Issue: When you install, uninstall, or update SCP versions 4.3.x, 4.4.x, or 4.5.0, you may experience disconnections during the installation or update process. This also affects existing VPN connections. Cause: These disconnections are due to the NTK driver installation, which is part of the mentioned SCP version and can last for 1–10 seconds. Solution: Fixed 4.5.1. NOTE: The SCP version without an NTK driver won't support Private Access (ZTNA).
		4.4.1	4.4.2	Issue: Policy update via ePO doesn't occur when McAfee Agent 5.6.2 is installed. Solution: Upgrade the client proxy to version 4.4.2 or update Mcafee Agent to Trellix Agent 5.7.7 or later.
MCP-4963		4.4.1	4.4.2	Issue: [Windows only] Unable to launch bypass and uninstall protection Windows. Solution: Upgrade to version 4.4.2.
MCP-4769	KB95292	4.1.5, 4.3.0	4.3.2 (Hotfix 1)	Issue: You might observe the issue below on some macOS Monterey systems that have SCP installed: Degraded performance when browsing the internet. Inability to access the internet. You see this issue on systems after you upgrade the operating system to macOS 12.1, 12.2 (Monterey). Solution: Upgrade to 4.3.2 (Hotfix 1).
TSWS-6321	-		4.3.1	Issue: [Windows only] A system crash (blue screen) occurs while running SCP in the presence of Windows Defender after enabling the Secure Channel option.
MCP-4173	-	4.1.0	4.1.1	Issue: Windows clients can't log on after a logoff; this issue also affects RDP logon. Workaround: Disable Enable Access Protection in client proxy settings.
MCP-3930	-	4.0.0	4.1.0	Issue: Domain-based redirection and bypass might not work as expected after you upgrade to SCP 4.0. Workaround: Reboot the endpoint after you upgrade.
MCP-2996 MCP 3423	-	3.1.0	3.2.0	Issue: The SCP policy revision number shows as Null. The policy revision number isn't updated in ePolicy Orchestrator (ePO) cloud and SCP. The ePO-updated policy can't be revoked and devices can't connect to ePO. Solution: Fixed in SCP 3.2.0. Upgrade your on-premises ePO extension from SCP 3.1 to SCP 3.2.

Non-critical Known Issues

Reference Number	Related Article	Found Version	Fixed Version	Issue Description
MCP-5651		4.6.1		Issue: When the DNS query or reply spans over multiple packets, the Client Proxy bypass or alternate redirection might not work as expected.
MCP-5184 MCP-5185	-	4.5.0	4.6.0	Issue: The PA Status in the About Skyhigh Client Proxy window displays Not Connected when you use port 443 for the Secure Channel. Resolution: Upgrade to version 4.6.0.
MCP-4137	-	4.0.0	4.4.0	Issue: The policy modified date is incorrect (01/01/70) for UCE policies on macOS.
TSWS-5804	-	-	4.3.1	Issue: SCP fails while running the Automatic Policy Download feature through the Secure Channel. (Windows only)
MCP-4528	-	-	4.1.5	Issue: SCP stops redirecting when Wi-Fi is changed to Ethernet. (Windows only)
MCP-4658	-	-	4.1.5	Issue: The SCP auto-policy download fails in the secure channel after updating a high availability proxy on the Cloud proxies.
MCP-4496	-	-	4.1.5 4.1.4 4.1.3	Issue: Because of the proxy polling issue, SCP fails to reach proxy servers to redirect traffic. (Windows only)
MCP-4242	-	-	4.1.2	Issue: SCP installation fails on a Spanish operating system. (Windows only).
MCP-3592	-	3.x	4.0.0	Issue: The alternate proxy server status isn't displayed in the About Skyhigh Client Proxy dialog window. (Windows only)
MCP-3493	-	3.x	4.0.0	Issue: SCP redirection fails. Resolution: The Trellix Agent updates the SCP policy every 60 minutes from the ePO server.
MCP-2843	-	3.1.0	3.2.0	Issue: SCP performs polling for an alternate proxy at 10-second intervals, if the Main proxy auto-proxy switchover is disabled. Workaround: Enable the Main proxy switch-over option in the policy.
Non-critical Known Issues (Investigating)
-		3.2.0	-	Issue: In ePO Cloud, Endpoint Security for Mac 10.6.9 or 10.6.10 and SCP 3.2.0.267 can't co-exist on the same system. With this combination, the Common policy for ENSM 10.6.x no longer works. As a result, the following critical policies, which are common across products, are disrupted: Client Interface Mode Password for Uninstallation Self-Protection
MCP-2438		3.0.0	-	Issue: In ePO - SaaS, the Policy catalog for SCP isn't visible to users created by ePO administrators. Workaround: The Tenant Administrator and other Administrative users can view and access SCP policies using the SCP Administration page.

Related Information

The products listed below have reached End of Life (EOL):

For EOL details, see KB88951 - End of Life for Skyhigh Client Proxy 3.x and earlier.

SCP Version	Release Date	EOL Date
SCP 3.1.x (EOL)
SCP 3.1.0	April 21, 2020	January 28, 2022
SCP 3.0.x (EOL)
SCP 3.0.1	January 14, 2020	August 31, 2021
SCP 3.0	November 20, 2019	August 31, 2021

Knowledge Center

Skyhigh Client Proxy Known Issues

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Skyhigh Client Proxy Known Issues

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