This chapter covers metered network connections, a Windows feature that allows users to designate a network as limited in data usage. On the CompTIA A+ 220-1101 exam, this topic falls under Domain 2.0 (Networking), Objective 2.4: 'Given a scenario, configure a metered network connection.' While not a heavy focus area, expect 1-2 questions that test your understanding of when to use metered connections, how to configure them, and their effect on system behavior. Mastering this concept ensures you can manage data usage effectively in environments with capped data plans or cellular hotspots.
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A metered network connection is like a prepaid cell phone plan where you are charged per megabyte of data used. Imagine you have a smartphone with a prepaid plan that gives you 2 GB of data per month for $20. If you go over, you pay $10 per extra GB. On your phone, you can set a 'data saver' mode that restricts background apps from using data unless you explicitly allow them. This is exactly how Windows metered connections work: Windows treats the connection like a limited resource, pausing automatic updates, app downloads, and other background traffic to prevent unexpected charges. Just as your phone warns you when you approach your limit, Windows respects the metered setting to avoid consuming data without your consent. The key mechanism is that Windows does not block data entirely—it merely suspends non-critical background transfers. User-initiated actions like browsing or email still work normally. The metered flag is a property of the network profile (e.g., Wi-Fi SSID or Ethernet network), stored in the registry, and can be set manually or automatically via Group Policy. When the flag is set, Windows treats the connection as costly, similar to how a user on a prepaid plan would limit usage to avoid overage fees.
What Is a Metered Network Connection?
A metered network connection is a Windows setting that, when enabled, tells the operating system to treat that network as having a limited data allowance. This causes Windows to reduce background data usage by pausing or deferring non-critical activities such as Windows Update downloads, automatic app updates, and certain background sync tasks. The feature is designed for users on mobile broadband connections, satellite links, or any network where data overage charges apply.
Why Metered Connections Exist
The primary purpose is to prevent unexpected data consumption and resulting costs. Without metering, Windows Update may download large feature updates (often 1-5 GB) without warning. Similarly, Microsoft Store apps and third-party applications like Adobe Reader or Steam may automatically download updates. By marking a network as metered, users regain control over when and how data is used.
How Metered Connections Work Internally
When you set a network as metered, Windows writes a flag in the Network List Manager (NLM) database. This flag is associated with the network's profile (identified by the network's SSID for Wi-Fi or a network name for Ethernet). The Network List Manager is a component that maintains a list of all networks the computer has connected to, along with their properties (e.g., location-aware settings, metered status).
Applications and Windows services query this flag through the Windows Networking API (specifically the INetwork interface). For example, the Windows Update service calls the GetNetworkConnectivityLevel or GetCost methods to determine if the current network is metered. If the network is marked as metered, Windows Update will only download critical updates (e.g., security patches) and defer non-critical updates (e.g., feature updates, driver updates). The exact behavior depends on the Windows version and update settings.
Configuring a Metered Connection
Configuration is done via the Settings app or Network & Internet settings: - Windows 10/11: Go to Settings > Network & Internet > Wi-Fi (or Ethernet) > Click on the network name > Toggle "Set as metered connection" to On. - Control Panel: For older Windows versions, you can also right-click the network icon in the system tray, select "Open Network & Internet settings," then navigate to the network properties.
Alternatively, administrators can use Group Policy to enforce metered settings. The relevant policy is located under:
Computer Configuration > Administrative Templates > Network > Network Connectivity Status Indicator > Specify metered network status for network connections
This allows setting a connection to "Metered" or "Non-metered" based on network ID.
Effects of Metered Connection
When a network is set as metered, the following behaviors change:
Windows Update: Only downloads critical updates automatically. Non-critical updates (including feature updates, driver updates, and optional updates) are deferred until the user manually initiates them or connects to a non-metered network.
Microsoft Store apps: App updates are not downloaded automatically. Users must open the Store and click "Get updates" manually.
Background sync: Apps like OneDrive, Outlook Mail, and others that sync in the background may pause or reduce sync frequency. For example, OneDrive will show a "Metered network" status and stop syncing files until the user manually resumes.
Peer-to-peer update sharing: Windows Update's Delivery Optimization (which shares updates with other PCs on the local network or over the internet) is disabled on metered connections.
Start menu tiles: Live tiles that update with new content (e.g., weather, news) may stop refreshing automatically.
Cortana and search: Cortana may stop downloading new data (e.g., weather forecasts) on metered connections.
BitLocker: BitLocker Drive Encryption may not automatically back up recovery keys to Active Directory or Microsoft Account on metered connections.
Note that user-initiated actions (e.g., browsing the web, downloading a file, streaming video) are not blocked. The metered setting only affects automatic background activities.
Metered vs. Non-Metered: Technical Differences
Internally, the metered flag is stored in the registry under:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\NetworkList\DefaultMediaCost
Each network profile has a DWORD value representing its cost: 1 (Default), 2 (Metered), or 3 (Unrestricted). The Windows Network Connectivity Status Indicator (NCSI) uses this to determine the network's cost level, which applications can query via the GetCost method.
Interaction with Other Technologies
VPNs: When connected to a VPN, the metered setting applies to the underlying physical network, not the VPN interface. However, Windows may treat the VPN connection as a separate network; the metered flag is usually inherited from the base network.
Cellular connections: Windows automatically marks cellular connections (mobile broadband) as metered by default. Users can override this if they have an unlimited data plan.
Wi-Fi hotspots: Tethering from a phone typically appears as a Wi-Fi network; users should manually set it as metered to avoid high data usage.
Ethernet: Ethernet connections are not metered by default, but can be set manually.
Group Policy: In enterprise environments, administrators can force metered settings via Group Policy to control bandwidth usage on limited connections.
Troubleshooting Metered Connection Issues
Common problems and solutions:
Updates not downloading: If a user expects updates to download but they are not, check if the network is set as metered. The Windows Update settings page will show a message like "Some settings are managed by your organization" if Group Policy enforces metered.
Apps not syncing: OneDrive or other cloud storage apps may show a status of "Paused on metered network." Users can manually resume syncing by right-clicking the OneDrive icon and selecting "Resume syncing."
Metered setting not sticking: In some cases, the metered setting may reset after a network disconnect/reconnect. This can happen if the network profile is corrupted. Deleting the network profile (forget the network) and reconnecting can resolve this.
Cellular connection not metered: If a cellular connection is not automatically set as metered, check the network properties. Some mobile broadband drivers may not report the connection as cellular correctly; manual configuration may be necessary.
Exam Relevance
On the 220-1101 exam, you may be asked to configure a metered connection for a user who has a limited data plan. You should know:
How to set a Wi-Fi network as metered (Settings > Network & Internet > Wi-Fi > network name > toggle).
The effect on Windows Update (only critical updates download automatically).
That metered connections are not for security; they are for data usage control.
That cellular connections are metered by default.
That user-initiated downloads are not blocked.
Know the difference between metered and non-metered, and be able to identify the correct configuration step in a scenario.
Identify the Network
First, determine which network connection needs to be set as metered. This is typically a Wi-Fi network from a mobile hotspot, a cellular connection, or a satellite link. On the exam, you might be given a scenario where a user is using a smartphone's hotspot and wants to avoid data overage. The network appears as a Wi-Fi network with the SSID of the hotspot. You must know that the setting is per network profile, so you need to configure the specific network that is currently connected.
Open Network Settings
Navigate to Settings > Network & Internet. On Windows 10/11, you can right-click the network icon in the system tray and select 'Open Network & Internet settings.' Alternatively, use the Start menu to search for 'Network settings.' This step is crucial because the metered connection option is not available from the Control Panel's Network and Sharing Center in modern Windows versions. The exam expects you to know the correct path.
Access Network Properties
In the Network & Internet settings, click on 'Wi-Fi' (or 'Ethernet' for wired connections). Then click on the network name (SSID) to open its properties page. This page shows details like IP address, DNS servers, and the metered connection toggle. On Ethernet networks, you may need to click on the Ethernet adapter name. The exam may test your ability to locate this properties page.
Enable Metered Connection
On the network properties page, find the 'Set as metered connection' toggle and switch it to 'On.' When enabled, Windows will treat this network as having a limited data plan. The toggle is a simple on/off switch. There is no option to set a data cap or limit; the metered flag is binary. This step is the core configuration action tested on the exam.
Verify the Effect
After enabling metered connection, verify that background activities are reduced. For example, check Windows Update: it should show that updates are paused or only critical updates are available. Open OneDrive and see if it displays 'Paused on metered network.' The user can still browse the web or download files manually. If the user later connects to a non-metered network (like home Wi-Fi), Windows will resume normal background activities automatically.
Enterprise Scenario 1: Remote Workers Using Cellular Hotspots
A large company has remote sales representatives who often work from locations without Wi-Fi. They use their smartphones as hotspots to connect their laptops. The corporate IT policy requires that Windows Update, antivirus definition updates, and other large downloads occur only when connected to the corporate Wi-Fi or Ethernet. To enforce this, IT can either instruct users to manually set the hotspot connection as metered or use Group Policy to automatically mark any network with a specific SSID pattern as metered. In practice, many organizations deploy a script that detects the network name and sets the metered flag via the registry. The challenge is that hotspots have dynamic SSIDs, so manual configuration is often used. Misconfiguration can lead to unexpected data charges: if a user forgets to set the hotspot as metered, Windows may download a 4 GB feature update, causing overage fees. The solution is to educate users and, if possible, use mobile device management (MDM) to enforce metered settings on company devices.
Scenario 2: Satellite Internet in Rural Branches
A company has a remote office that uses satellite internet with a 50 GB monthly cap. Exceeding the cap results in throttled speeds. The network administrator configures all computers in that office to treat the Ethernet connection as metered. This prevents automatic updates from consuming the data cap during business hours. However, critical security updates must still be applied. The administrator sets Windows Update to 'Download updates automatically but defer feature updates' via Group Policy, overriding the metered restriction for critical updates. This is done by configuring the 'Configure Automatic Updates' policy to '4 - Auto download and schedule installation' and then using the 'Specify metered network status for network connections' policy to mark the network as metered. The result is that only critical updates download automatically, while feature updates and app updates are deferred. This balance ensures security without exhausting the data cap.
Scenario 3: Public Wi-Fi at a Conference
During a tech conference, attendees often connect to the venue's Wi-Fi, which may have a fair usage policy. A user sets the conference Wi-Fi as metered to avoid Windows downloading large updates that could slow down the connection for everyone. This is a simple configuration that any user can perform. The main risk is that the metered setting persists when the user returns to their home network, potentially causing home updates to be deferred. Users must remember to disable the metered setting when they reconnect to an unlimited network. In enterprise-managed devices, Group Policy can be used to automatically set known corporate networks as non-metered, while all other networks default to metered.
What the 220-1101 Exam Tests
Objective 2.4: 'Given a scenario, configure a metered network connection.' The exam expects you to know:
The steps to set a Wi-Fi or Ethernet connection as metered.
The effect on Windows Update (only critical updates download automatically).
That cellular connections are metered by default.
That user-initiated downloads are not affected.
That metered connections are for data usage control, not security.
Common Wrong Answers and Why Candidates Choose Them
'Setting a connection as metered blocks all internet traffic.' This is wrong because metered only reduces background data; user-initiated activities like browsing and email work normally. Candidates confuse 'metered' with 'limited' or 'blocked.'
'Metered connections prevent security updates from downloading.' This is false. Critical security updates still download automatically even on metered connections. Candidates may think all updates are blocked.
'You can set a data cap in the metered connection settings.' Windows does not allow setting a data cap; it only toggles the metered flag. Candidates may assume there is a quota feature.
'Metered connections are only available for Wi-Fi.' Actually, Ethernet connections can also be set as metered. Candidates may think only wireless networks support metering.
Specific Numbers and Terms
The toggle is labeled 'Set as metered connection' (Windows 10/11).
The setting is per network profile (per SSID or Ethernet network).
Cellular connections are automatically metered.
Critical updates: security patches, definition updates.
Non-critical updates: feature updates, driver updates, optional updates.
Edge Cases and Exam Traps
VPN connections: The metered setting applies to the underlying physical network, not the VPN. If the VPN is set as metered, it may not have the intended effect. The exam might ask about this.
Group Policy: If a network is managed by Group Policy, the metered toggle may be grayed out. Candidates should know that Group Policy overrides local settings.
Resetting metered status: If a user disconnects and reconnects to the same network, the metered setting is preserved. However, if the network profile is deleted, the setting is lost.
Multiple networks: A computer connected to both Wi-Fi and Ethernet may have different metered settings. Windows uses the active connection's metered status.
How to Eliminate Wrong Answers
Focus on the mechanism: metered connections only affect automatic background transfers. If an answer suggests that browsing, streaming, or downloading files manually is blocked, it is wrong. Also, remember that security updates are considered critical and will still download. Any answer claiming that all updates are blocked is incorrect. Finally, know that metered is not a security feature—it does not prevent unauthorized access or add encryption.
Metered connections reduce background data usage to avoid overage charges.
Only critical Windows updates download automatically on metered connections.
Cellular connections are metered by default; Wi-Fi and Ethernet are not.
The metered setting is per network profile and persists across connections.
User-initiated activities like browsing and manual downloads are not blocked.
Metered connections are configured via Settings > Network & Internet > Wi-Fi/Ethernet > network name > toggle.
Group Policy can enforce metered settings in enterprise environments.
These come up on the exam all the time. Here's how to tell them apart.
Metered Connection
Background data usage is minimized; automatic updates and app syncs are deferred.
Windows Update only downloads critical security updates automatically.
Cellular connections are metered by default.
User-initiated activities (browsing, downloads) are not affected.
Recommended for networks with data caps or usage limits.
Non-Metered Connection
Background data usage is unrestricted; all updates and syncs occur automatically.
Windows Update downloads all available updates, including feature updates and drivers.
Wi-Fi and Ethernet are non-metered by default.
All internet activities, both background and foreground, proceed normally.
Suitable for unlimited data plans or corporate networks with ample bandwidth.
Mistake
Setting a network as metered blocks all internet traffic.
Correct
Metered only reduces background data usage; user-initiated activities like web browsing, email, and manual downloads work normally.
Mistake
Metered connections prevent all Windows updates from downloading.
Correct
Critical security updates still download automatically. Only non-critical updates (feature updates, optional updates) are deferred.
Mistake
You can set a specific data cap (e.g., 5 GB) on a metered connection.
Correct
Windows does not allow setting a data cap. The metered flag is binary: either on or off. There is no quota or threshold.
Mistake
Metered connections are only available for Wi-Fi networks.
Correct
Both Wi-Fi and Ethernet connections can be set as metered. Cellular connections are automatically metered by default.
Mistake
Metered connections improve network security.
Correct
Metered connections have no security implications. They only control data usage. Security features like firewall and encryption are unaffected.
Reveal each answer, then mark whether you got it right. Score 60%+ to unlock the next chapter.
Go to Settings > Network & Internet > Wi-Fi (or Ethernet). Click on the network name you are connected to. Under 'Metered connection,' toggle the switch to 'On.' This will mark the network as metered, reducing background data usage. For Ethernet, you may need to click on the adapter name and then find the metered toggle.
No. Only non-critical updates (like feature updates, driver updates, and optional updates) are deferred. Critical security updates and definition updates (e.g., Windows Defender) still download automatically. This ensures your system remains secure while conserving data.
No, Windows does not allow setting a specific data limit or cap. The metered setting is simply a flag that tells Windows to treat the connection as limited. There is no built-in data usage monitor or quota enforcement in the metered connection feature.
Yes, Windows automatically marks cellular (mobile broadband) connections as metered by default. You can change this if you have an unlimited data plan by toggling the metered setting off. This is because cellular data is often capped or expensive.
No. Metered connections have no security benefits. They only control data usage. To improve security, you should use firewalls, encryption (like WPA3 for Wi-Fi), and keep your system updated. Metered connections are purely about managing data consumption.
OneDrive will pause syncing files automatically. You will see a status message like 'Paused on metered network.' You can manually resume syncing by right-clicking the OneDrive icon in the system tray and selecting 'Resume syncing.' This prevents large file transfers from consuming your data cap.
Yes. In enterprise environments, administrators can use Group Policy to set metered status for specific network connections. The policy is located under Computer Configuration > Administrative Templates > Network > Network Connectivity Status Indicator > 'Specify metered network status for network connections.' This allows setting metered or non-metered based on network ID.
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