Zscaler outages and problems
In the past 24 hours, 8 user reports came in for Zscaler. Counting only the 15-minute windows with a spike big enough to count as an outage, that comes to 100.00% uptime for the day.
The busiest 15-minute window had 1 report, about 24 hours ago. That stays below our outage threshold, so it doesn't count as downtime.
What people can report about Zscaler
People who report a problem with Zscaler to the outage-report feed behind this page can tag what is affected. These are the categories they can pick; the feed shows no counts per category:
- Login
- App
- Connecting to VPN
Zscaler reports around the world
In the last 24 hours, 25 problem reports about Zscaler came in from 6 countries. Right now reports are at the usual level in every country.
- Outage now
- Problems now
- Normal
| Country | Now | Last hour | 24 hours |
|---|---|---|---|
| The US numbers above | Normal | 0 | 20 |
| Portugal | Normal | 0 | 1 |
| Canada | Normal | 0 | 1 |
| The Netherlands | Normal | 0 | 1 |
| Peru | Normal | 0 | 1 |
| Sweden | Normal | 0 | 1 |
| Brazil | Normal | 0 | 0 |
| Australia | Normal | 0 | 0 |
| Azerbaijan | Normal | 0 | 0 |
| Bahrain | Normal | 0 | 0 |
| Bangladesh | Normal | 0 | 0 |
| Bulgaria | Normal | 0 | 0 |
Each country's status compares its reports with the usual level there. 54 more countries had 0 reports in the last 24 hours. Map outlines: Natural Earth.
Zscaler problem spikes, last 30 days
Since 8 October, Zscaler had no outage spikes or periods of elevated reports.
- Sat 3 Oct: no data
- Sun 4 Oct: no data
- Mon 5 Oct: no data
- Tue 6 Oct: no data
- Wed 7 Oct: no data
- Thu 8 Oct: 1 report
- Fri 9 Oct: 0 reports
- Sat 10 Oct: 0 reports
- Sun 11 Oct: 0 reports
- Mon 12 Oct: 0 reports
- Tue 13 Oct: 0 reports
- Wed 14 Oct: 0 reports
- Thu 15 Oct: 0 reports
- Fri 16 Oct: 0 reports
- Sat 17 Oct: 0 reports
- Sun 18 Oct: 0 reports
- Mon 19 Oct: 1 report
- Tue 20 Oct: 0 reports
- Wed 21 Oct: no data
- Thu 22 Oct: 0 reports
- Fri 23 Oct: 1 report
- Sat 24 Oct: 0 reports
- Sun 25 Oct: 0 reports
- Mon 26 Oct: 0 reports
- Tue 27 Oct: 0 reports
- Wed 28 Oct: 3 reports
- Thu 29 Oct: 25 reports
- Fri 30 Oct: 20 reports
- Sat 31 Oct: 8 reports
- Sun 1 Nov: no data
By country
Each square is one day in the countries with the most reports: red when reports stayed at outage level for half an hour or more, amber when they stayed above the usual level for an hour or more, grey otherwise.
- Mexico60
- The US51
- Australia3
- The UK3
- India3
- Germany2
- Spain2
- Japan2
Country history starts on 28 October 2026. Days run from midnight to midnight, Central European time.
A spike is a sharp rise in problem reports from users, kept exactly as this page showed it at the time. This history starts on 8 October 2026. Monthly reports for all services
How to fix Zscaler not working
Zscaler is up on our end, so if it won't work for you, the problem is most likely on your side. Work through these in order:
Your browser tries to reach zscaler.com over your own connection, right now. Nothing is sent to us or stored.
Check the Client Connector status
Open Zscaler Client Connector from the Start menu on Windows or the Applications folder on macOS. Read the status line. A Disconnected status needs Connect; if it says Connected and pages still fail, sign out and back in before you touch network settings.
Sign out and sign back in
Use Sign Out in the Client Connector menu, then sign in with your work account; this clears a stale SSO session that can leave the app stuck during sign-in or looping back to the login page. Close the old browser tab first, since a cached SAML response can repeat the same loop.
Restart the app and device
Reboot the laptop or phone. Start Zscaler Client Connector before you open a browser or a VPN client; a stale network filter or DNS cache can keep traffic from reaching the service after a Wi-Fi or wired network change. On Windows, open Task Manager, find Zscaler Client Connector under Background processes, choose End task, then launch it from the Start menu.
Reinstall Client Connector
Uninstall the app from Apps & features on Windows or Applications on macOS, then install the current package from your IT admin or the help centre. Do that last. A damaged network filter driver or an old app build is the usual reason a clean install fixes one device while the rest of the team stays online.
While Zscaler is down: what to use instead
- Mobile tether Tether when VPN stalls.
- Backup VPN client You can start your backup VPN when Client Connector hangs on connecting or blocks search and mail because it routes you past the policy check.
- Palo Alto Prisma Access Talk to IT about Palo Alto Prisma Access when you need a second path for private apps.
- Cloudflare One Route your public browsing over Cloudflare One while IT fixes Client Connector login loops.
Fix Zscaler on Windows, Mac, Android and iPhone
Zscaler on Windows
- Fix
- Open the Zscaler Client Connector from the system tray, click 'More', and select 'Restart Service' or 'Update Policy'. You can also try disabling and re-enabling the Zscaler network adapter in Windows Device Manager.
- Check
- Check the Zscaler Client Connector window to see if the status is 'Active' or shows a connection error. You can also visit the official Zscaler Trust portal to check for active cloud infrastructure outages.
ping zscaler.comTest whether Zscaler's servers replynslookup zscaler.comCheck that Zscaler's DNS resolvestracert zscaler.comTrace where the connection dropsipconfig /flushdnsClear the DNS cache, then reloadZscaler on Mac
- Fix
- Click the Zscaler icon in the macOS menu bar, open settings, and select 'Restart Service'. Ensure that the Zscaler system extension is allowed under macOS System Settings > Privacy & Security.
- Check
- Open the Zscaler Client Connector from the menu bar to verify if the status is 'Active' or if it is stuck on 'Connecting'. Check the Zscaler Trust status page to see if your assigned cloud node is experiencing an outage.
ping -c 4 zscaler.comTest whether Zscaler's servers replynslookup zscaler.comCheck that Zscaler's DNS resolvestraceroute zscaler.comTrace where the connection dropssudo dscacheutil -flushcache; sudo killall -HUP mDNSResponderFlush the macOS DNS cache, then reloadZscaler on Android
- Fix
- Open the Zscaler Client Connector app, tap the menu icon, and select 'Update Policy'. If connection issues persist, clear the Zscaler app cache in your Android settings or reinstall the app from the Google Play Store.
- Check
- Open the Zscaler app and verify if the connection status displays 'Active' or 'Service Unavailable'. You can also check the Zscaler Trust site to see if there is a wider service disruption.
Zscaler on iPhone and iPad
- Fix
- Open the Zscaler app and tap 'Update Policy', or toggle the VPN connection off and on in your iOS Settings. If it still fails, reinstall the Zscaler Client Connector app from the App Store.
- Check
- Launch the Zscaler Client Connector app on your iPhone or iPad and check if the home screen status is 'Active'. If it shows an error, check the Zscaler Trust portal to see if the cloud service is down.
What happens when Zscaler goes down
Zscaler is a cloud security service that routes internet and private app traffic through its own network, and large companies rely on it to keep remote staff and branch offices on policy. An outage interrupts the path between a user and the web or internal tools, so work stops even when the local internet connection is fine.
The first sign is often the Client Connector sitting in a connecting or disconnected state, which leaves browsers unable to load pages that normally pass through the secure web gateway. Private apps behind Zscaler Private Access can drop at the same time, so file shares and internal dashboards return timeouts instead of opening. Logins can loop or fail. Problems are often partial: one region or one set of apps fails while other traffic keeps working, and the status page shows whether reports are above the usual level.
Zscaler IP address, servers and network
Checking zscaler.com from our server…
Zscaler FAQ
Is Zscaler down right now?
Why does Zscaler Client Connector keep saying the service is unreachable?
Why does Zscaler block a website I need for work?
Why does Zscaler Client Connector keep signing me out on my Mac?
Why can't I reach an internal app through Zscaler Private Access?
Service updates from @zscaler
No posts about problems from @zscaler in the last 14 days. The latest is from .
How we track Zscaler
The status on this page comes from user-submitted problem reports for Zscaler, counted in 15-minute windows over the last 24 hours. Each window is compared with the normal level for Zscaler, so a few complaints on a quiet day don't trigger anything, but a sudden jump well above normal does.
When reports climb well above normal, the status here changes to partial outage or major outage and the chart moves with it. This is separate from Zscaler's official status page: user reports tend to show a problem early, while the official page confirms the cause. If the two disagree, check both.