How to check whether Push notifications are working for end-users

To confirm whether Push notifications are working for end-users, Duo administrators can send a test push from the Duo Admin Panel User properties page.

“Fetch” a Duo Push request: If you expected to receive an authentication request and one hasn’t shown up in Duo Mobile, try leaving and returning to the app, as this can “fetch” the notification. Closing or force quitting the app and reopening it will also fetch the notification. You may also try swiping down from the top of the screen to check the notification center to see if the push was delivered silently due to skipping notification permissions when you set up the app.

Check your connection: Further, you should verify that you are connected to a reliable WiFi or cellular connection, as a weak connection can delay a push or can cause you to not receive a push. Note that personal hotspots use a cellular connection. On iOS devices, notifications are sent from the Apple Push Notification service (APNs) to the registered device over mobile data or WiFi networks and are not associated with the phone number of the device.

Also, if you are accessing an application you haven’t used in a while, try opening the Duo Mobile app and then send another push request.

If you see a push after leaving and returning to the app:

If you are able to fetch an authentication successfully but still don’t receive push notifications, or if you see a message in Duo Mobile that says “Please open Duo Mobile and check for Duo Push requests manually”, here are the likely potential reasons for the issue:

1. Notifications not enabled
If you can approve a request by manually leaving and returning to the app and tapping the Approve button in the Duo Mobile app, but no push notifications are received, it is most likely because you selected not to receive notifications when installing the application. The following process will also resolve a bug in iOS 10 that may require push notifications to be toggled off and back on for applications.

The first time a push-enabled app registers for push notifications, iOS asks if you want to receive notifications for that app. Once you select an option, the option is not presented again unless the device is restored or the app has been uninstalled for at least a day.

To check if push notifications are enabled for Duo Mobile and re-enable them if needed, follow these steps:

  1. On the iPhone, open Settings.
  2. Scroll down and select Duo Mobile.
  3. Select Notifications.
  4. If the “Allow Notifications” option is already selected, deselect it and select it again. If it was not yet selected, select it. Verify that all other notification options are configured how you want them.
    Notification configuration options
  5. Fully close Duo Mobile by either swiping up on the screen or double-tapping the home button and then swiping up on the screen depending on your device model.
  6. Open Duo Mobile again.


2. Issues with Apple Push Notification Service (APNs)
Another reason push notifications may not be working is due to an issue connecting to Apple Push Notification Service (APNs). In their support articles Use notifications on your iPhone, iPad, and iPod touch and If your Apple devices aren’t getting Apple push notifications, Apple suggests disabling cellular data and testing pushes. This would help narrow down whether the carrier is having an issue with the APNs and finding the phone.

A weak connection can result in a delayed push, or not receiving a push at all.

  • You can force WiFi to test whether the issue is related to cellular data: Navigate to Settings > Cellular > Cellular Data Off, then connect to WiFi and attempt another authentication. Note: Personal HotSpots use cellular data.
  • You can force cellular to test whether the issue is related to your WiFi connection. Navigate to Settings > Wi-Fi and disable your WiFi connection. Navigate to Settings > Cellular to enable cellular data, then attempt another authentication.


Your wireless network must also allow the following ports for proper communication with Apple’s servers:

  • TCP port 5223 (used by devices to communicate to the APNs servers)
  • TCP port 2195 (used to send notifications to the APNs)
  • TCP port 2196 (used by the APNs feedback service)
  • TCP port 2197 (used to send notifications to the APNs)
  • TCP port 443 (used as a fallback on Wi-fi only, when devices are unable to communicate to APNs on port 5223)

3. Issues caused by Wi-Fi Assist and VPN usage
The Wi-Fi Assist feature, which is enabled by default and will automatically switch to cellular data when you have a poor Wi-Fi connection, can cause Duo Push issues if you are using a VPN on your iOS device. If you use a VPN on your device and get connection errors from Duo Mobile, you can disable Wi-Fi assist by doing the following:

Navigate to Settings > Cellular or Settings > Mobile Data. Then scroll down and tap the slider for Wi-Fi Assist.

If you don’t see a push after leaving and returning to the app:

This occurs because something has happened on the device that has caused the Duo account to be unlinked from our servers.

  • Make sure the system time is set automatically and that the timezone is correct on the phone via Settings > General > Date & Time.
  • If the previous suggestion didn’t appear to help, next we recommend reactivating the affected Duo Mobile account. Here’s how to do that:


Other installed applications on iOS:
We’ve received reports from customers that when PIA-VPN is installed on an iOS device, the device is unable to receive push notifications over WiFi. If you have PIA-VPN installed and need to use Push for authentications over WiFi, F-Secure Freedome is an alternative that has been confirmed to work with Push notifications regardless of cellular network settings. 

For help with Push issues on Apple Watch, see How do I troubleshoot Duo Push delivery issues on Apple Watch?

Additional Troubleshooting
If none of the above steps resolve your issue, and you receive an error message, please include all of the following information in an email to support@duosecurity.com:

  • The error message text.
  • A description of what happened right before the message appeared.
  • Debug information available via this process:
    1. Open Duo Mobile.
    2. Selectthe Menu button in the top left.
    3. Select Settings.
    4. Select Share Debug Info.
    5. Select Copy.
    6. Paste the copied text in the email.


Duo Push & Third-Party Accounts:
Please note that Duo Push is not supported for third-party accounts (e.g. Amazon, Instagram, Facebook, Slack, Dropbox, etc.). Third-party accounts require the use of Duo Mobile passcodes as a second factor when logging in. Learn more about third-party accounts in our end-user guide and in this Knowledge Base article.

How to unlock DUO account?

If your Duo account is locked, you can try the following steps to unlock it:

  1. Go to the Duo login page and enter your username and password as usual.
  2. If your account is locked, you should see a message that says “Your account is locked. Please contact your administrator.”
  3. Contact your Duo administrator and ask them to unlock your account. They can do this by logging into their Duo dashboard, navigating to the “Users” section, and selecting your account. From there, they can click on the “Actions” dropdown menu and choose “Unlock user.”
  4. Once your account is unlocked, you should be able to log in to Duo again as usual.

If you are the Duo administrator and your own account is locked, you can follow the same steps above, but instead of contacting another administrator, you can use another account with administrative privileges to unlock your account. If you do not have another administrative account, you can contact Duo customer support for assistance.

How to adjust garage door safety sensors

Adjusting garage door safety sensors involves a few simple steps:

  1. Identify the sensors: Look for the two sensors that are located on either side of the garage door, usually near the bottom of the track. One sensor will have a green light, and the other will have a red light.
  2. Check alignment: Ensure that the sensors are aligned properly by checking that the lights are solid and not blinking. If the lights are blinking, it means that the sensors are not aligned correctly.
  3. Adjust the sensors: Loosen the screws that hold the sensor in place, then gently move the sensor until it’s aligned with the other sensor. Tighten the screws back up once the sensor is in the correct position.
  4. Test the sensors: Close the garage door and check that it stops and reverses when an object is placed in the path of the door. If the door doesn’t reverse, repeat the alignment process until the sensors are properly aligned.
  5. Clean the sensors: Dirt and debris can interfere with the operation of the sensors. Use a clean cloth to wipe the sensors clean and remove any dirt or debris that may be blocking the sensors.
  6. Check the wiring: Make sure the wiring between the sensors and the garage door opener is secure and in good condition. Damaged wiring can cause the sensors to malfunction.

By following these steps, you can adjust the garage door safety sensors and ensure that they’re properly aligned for safe and reliable operation. If you’re not comfortable making these adjustments yourself, it’s always best to contact a professional garage door technician for assistance.

Garage door sense broke. can I just replace one sense?

If one of the safety sensors on your garage door is broken, it’s important to replace it as soon as possible to ensure the safe operation of your garage door. However, it’s not recommended to replace just one sensor.

The safety sensors on your garage door work as a pair and are designed to communicate with each other to ensure that the door doesn’t close if there is an obstruction in the path of the door. If one of the sensors is broken, it can’t communicate with the other sensor, and the safety feature will be disabled. This can lead to a potentially dangerous situation where the door could close on a person or object.

So, to ensure the safe operation of your garage door, it’s recommended that you replace both safety sensors as a pair. This will ensure that they can communicate with each other and properly detect any obstructions in the path of the door.

How to export group members in outlook?

To export group members in Outlook, follow these steps:

  1. Open Outlook and select the group for which you want to export members.
  2. Click on the “Group” tab in the ribbon at the top of the screen.
  3. In the “Members” section, click on the “View all” link to open the “Group Members” window.
  4. In the “Group Members” window, click on the “Export” button.
  5. Choose the location where you want to save the exported file and give it a name.
  6. Choose the file format you want to use for the export, such as Excel or CSV.
  7. Click “Export” to begin the export process.

Once the export is complete, you will have a file containing all the group members’ information that you can use for further analysis or sharing with others.

How to block junk email in office 365

To block junk email in Office 365, you can use the built-in spam filter. Here are the steps to enable it and customize its settings:

  1. Sign in to the Office 365 Admin Center using your admin credentials.
  2. In the Admin Center, click on Security.

3. Click on

If you don’t see Security & Compliance” section, in the navigation pane on the left side of the screen, choose More resources, and then, under Office 365 security & compliance center, choose Open.”

4. Click on Policies & rules.

5. Click on Treat policies.

6. In the Policies page, click on “Anti-spam” to access the anti-spam policies.

7. If there is no anti-spam policy, click on “Create policy” and then “Anti-spam policy” to create one.

In the policy settings, you can select the level of filtering that you want to use: No automatic filtering, Low, Moderate, High or Custom.

8. Once the policy is created, select it and click on “Edit policy” to customize its settings.

9. If you choose the Custom option, you can set the specific spam filter rules and actions.

10. You can also configure the spam confidence level (SCL) thresholds to control what actions are taken on messages that are marked as spam.

11. Click “Save” to save the changes.

Once you have enabled the spam filter and customized its settings, Office 365 will automatically move messages that it identifies as spam to the Junk Email folder. Users can review the messages in this folder and move any legitimate messages back to their Inbox. They can also mark any messages that were incorrectly identified as spam as “Not Junk” to help train the filter for future messages.

How to block junk emails in Outlook

To block junk email in Outlook, you can use the built-in junk email filter. Here are the steps to enable it and customize its settings:

  1. Open Outlook and make sure you are in Home menu. Click on the “Junk” dropdown menu in the ribbon menu.

or right click on one of junk emails in Junk Email. Then select Junk E-mail Options.

2. Click “Junk E-mail Options” to open the Junk E-mail Options dialog box.

3. In the “Options” tab, select the level of filtering that you want to use: No Automatic Filtering, Low, High, or Safe Lists Only.

4. If you choose to use the Safe Lists Only option, you can add safe senders and safe recipients to the lists. Emails from these addresses will never be treated as junk email.

5. In the “Blocked Senders” tab, you can add email addresses and domains to the blocked list. Emails from these addresses will always be treated as junk email and moved to the Junk Email folder.

6. In the “International” tab, you can specify the languages that you want to filter for junk email.

7. Click “OK” to save the changes.

Once you have enabled the junk email filter and customized its settings, Outlook will automatically move messages that it identifies as junk email to the Junk Email folder. You can review the messages in this folder and move any legitimate messages back to your Inbox. You can also mark any messages that were incorrectly identified as junk email as “Not Junk” to help train the filter for future messages.

After unlinking this pc, you still see the OneDrive in File Explorer

If you’ve already unlinked your PC from OneDrive but still see the OneDrive folder in File Explorer, you can remove it by following these steps:

  1. Open File Explorer and go to the “View” tab in the ribbon menu.
  2. Click on the “Options” button, which is located on the far right side of the ribbon menu.
  3. In the Folder Options window that appears, select the “View” tab.
  4. Scroll down and find the option “Hide protected operating system files (Recommended)” and make sure it is checked.
  5. Scroll up and find the option “Show hidden files, folders, and drives” and check it.
  6. Click “Apply” and then “OK” to save the changes.
  7. In File Explorer, navigate to the OneDrive folder.
  8. Right-click on the OneDrive folder and select “Properties.”
  9. In the Properties window, select the “General” tab.
  10. At the bottom of the General tab, check the box next to “Hidden.”
  11. Click “Apply” and then “OK” to save the changes.
  12. The OneDrive folder should now be hidden from File Explorer.

Note: If you ever need to access the OneDrive folder again, you can go back to the Folder Options window and uncheck the “Hidden files, folders, and drives” option.

How to remove OneDrive from file explorer

To remove OneDrive from File Explorer in Windows 10, you can follow these steps:

  1. Open File Explorer on your Windows 10 computer.
  2. Click on the “View” tab in the ribbon menu.
  3. In the “Show/hide” section of the ribbon menu, uncheck the box next to “Navigation pane” to hide the pane.
  4. Press the Windows key + R to open the Run dialog box.
  5. Type “regedit” in the Run dialog box and click “OK” to open the Registry Editor.
  6. In the Registry Editor, navigate to the following key: HKEY_CLASSES_ROOT\CLSID{018D5C66-4533-4307-9B53-224DE2ED1FE6}
  7. Right-click on the {018D5C66-4533-4307-9B53-224DE2ED1FE6} key and select “Export” to back up the key.
  8. Right-click on the {018D5C66-4533-4307-9B53-224DE2ED1FE6} key again and select “Delete” to remove it.
  9. Close the Registry Editor.
  10. Open File Explorer again, and OneDrive should no longer appear in the navigation pane.

Note: Modifying the Windows Registry can be risky and may cause system issues if done incorrectly. It’s recommended that you backup your registry before making any changes and proceed with caution.

How to change yahoo email user information

To change your Yahoo email user information, such as your name, phone number, or recovery email address, you can follow these steps:

  1. Go to the Yahoo homepage and sign in to your account.
  2. Click on your profile picture or name in the top-right corner of the screen.
  3. Click on “Account Info” from the dropdown menu.

4. You may be asked to enter your password again for security purposes.

5. Click on “Personal Info” on the left-hand side of the screen.

6. Click on Edit in the top right.

7. Update the information as needed.

8. Click on “Done” to save your changes.

Your Yahoo email user information should now be updated. Make sure to review your updated information to ensure it is correct and up-to-date.