VPN FAQs for beginners: multiple devices, data usage, speed limits, and answers to ten common questions

VPN beginners often have questions about using multiple devices, data usage, and slow connections. First, separate account access, client settings, and route status to pinpoint the issue. This guide answers 10 common questions, from setting up an account to routing collaboration tools through international routes while keeping local apps connected directly.

1. Can you use a VPN on multiple devices at once?

VPNQM has no device limit. You can configure clients separately on computers and mobile devices, but the number of devices and your plan's data allowance are different things: unlimited devices does not mean each device gets its own data allowance. Check usage in your account dashboard; don't mistake the local usage shown in a computer client for your total account usage.

Settings don't necessarily sync across devices, either. Setting a work collaboration site to use a proxy on your computer doesn't mean another device will use the same configuration automatically. Check the subscription update, proxy mode, and selected route on each device. If you use several devices, give route groups clear names and verify that each device uses the intended group to avoid confusion.

2. How does plan data usage work, and what uses more?

Browsing, streaming, and file sync all transfer data, but only requests routed through the service are included in the corresponding server-side usage count. Requests set to go direct shouldn't pass through that proxy route. With global proxy enabled, background updates and cloud drive sync that could otherwise connect directly may also use the route.

Uploads transfer data too, so don't focus only on downloads. Check the dashboard and plan details to see how upload and download usage are counted and whether routes are billed differently; don't assume only one direction counts. Client and dashboard counters may also use different reporting scopes or refresh at different times, so a brief mismatch doesn't necessarily indicate an unexpected deduction.

3. How do you choose between a monthly plan and a data pack?

Monthly plans suit regular use. VPNQM offers monthly plans at ¥9.9 / 60GB, ¥18 / 250GB, and ¥28 / 500GB. Data resets monthly on the day you activate your plan, not at the start of each calendar month. If you upgrade mid-cycle, the price difference is prorated for the remaining days. Review the checkout total shown in your dashboard before proceeding.

Data packs cost ¥158 / 300GB, ¥358 / 1000GB, and ¥658 / 3000GB. They last until used and never expire, making them a better fit for occasional or irregular use. Don't compare only the upfront price; consider how often you'll use the service and how much data you need. Among the monthly plans, ¥28 / 500GB has the lowest cost per unit of data, but a lower tier may suit your budget better if you use less.

4. Does a slow connection mean you're being throttled?

A slow-loading webpage alone isn't enough to tell. Wi-Fi interference, background downloads, congested routes, a busy destination website, and packet loss can all affect performance. Latency measures round-trip delay, while download speed measures sustained data transfer; they're not the same. A speed test also can't represent every app.

Troubleshoot by changing one variable at a time: use the same device and network, pause background transfers, then compare the same app across different routes. If only one website is slow, check whether its traffic matches the intended routing rule. If apps connecting directly are slow too, check your local network first. For any stated speed limits, refer to the plan details; price and protocol names don't guarantee a particular speed.

• ✅ Check your account status, remaining data, and whether the subscription updated successfully.
• ✅ Pause cloud drive sync and large downloads to rule out bandwidth being used by another task.
• ✅ Check which rule and route the request matches, and save any error details you can reproduce.
• ✅ After switching routes, reconnect the app so it doesn't keep using an existing connection through the old exit.

5. What's the difference between a client and a subscription link?

The client establishes connections, applies rules, and selects routes. A subscription link provides service configuration; it isn't an ordinary webpage address. Sign in to your VPNQM dashboard to get the client and subscription, then import them using the guide for your platform. Your account password, subscription URL, and individual route settings are different types of credentials and shouldn't be used interchangeably.

After importing, check that the routes appear and that the update completed without errors. Shadowsocks, VMess, Trojan, VLESS, Hysteria2, and TUIC are different proxy protocols or protocol families. Your client must support the types and parameters used by the subscription. Files with the same extension aren't necessarily compatible configuration formats. If parsing fails, check the client type first instead of repeatedly pasting the link.

6. Why do settings differ across platforms?

Windows, macOS, Android, iOS, and Linux handle network interfaces, permissions, and background processes differently, so button names and steps from one platform may not apply to another. A desktop client's system proxy usually affects only apps that honor the system proxy settings. TUN mode uses a virtual network interface to handle traffic that matches its routing conditions, but behavior still depends on the client and its exclusion rules.

Mobile clients often use the VPN interface provided by the operating system, but seeing a VPN indicator doesn't mean every request uses the same route. Check the rules and connection logs as well. For iOS, check the plan status in your dashboard to confirm availability. When switching platforms, follow the relevant steps in the user guide; don't look for installers or alternative configurations from unknown sources.

7. When should you use split tunneling or global mode?

Split tunneling assigns different traffic to different routes. For example, collaboration tools can use a proxy route while local document services and devices on your local network connect directly. What “by app” means varies: a client may use processes, domains, or other rules. A single domain rule can't necessarily identify every request made by an app.

Global proxy mode generally routes all requests covered by the client through the selected proxy. It doesn't necessarily capture all network traffic on the device. Use it temporarily for comparison: if an app works in global mode but not with rules, check which rules match and how DNS is handled. Once you find the cause, switch back to suitable split tunneling so local traffic doesn't take an unnecessary detour.

When editing rules, check their priority and fallback behavior. Many clients match rules in order, so a broad rule near the top can override more specific rules below it. After making changes, reopen the app and check the connection logs to make sure you're not seeing results from an existing connection.

8. Do you need to keep it on all the time? What happens when you turn it off?

You don't need to treat “always on” as a requirement. Whether to keep the client running depends on whether your apps need international routes continuously, whether background sync is active, and whether your current routing setup suits local apps. Use it only while you need the relevant tools, or leave it running in rule-based mode, depending on your workflow.

Before exiting, use the client's disconnect or stop-proxy option. Force-quitting the process may leave the system proxy enabled, causing your browser to keep trying to connect to a local proxy that has stopped. If webpages won't load after you exit, check that the system proxy settings were restored before assuming your internet connection is down. Switching routes or disconnecting during a meeting or file upload may also cause the app to reconnect.

9. Why check DNS if your network exit has changed?

Your network exit IP and DNS are separate parts of the connection. An exit check shows where a particular webpage request leaves the network. DNS translates domain names into IP addresses. Seeing a proxy exit on a browser check doesn't prove that the system, browser, and other apps all use the same DNS resolution path.

A DNS leak generally means a query that should follow the expected path was sent to an unexpected resolver. Start by checking the client's DNS mode, then review encrypted DNS settings in your browser, system DNS settings, and routing rules. Settings can override one another, so don't disable features blindly. First, use IP check to confirm the browser's network exit, then verify with a trusted DNS test and client logs. No single check proves complete privacy.

10. What are the boundaries around accounts, privacy, and support?

VPNQM doesn't require an email address; create an account with a username and password. Choose a unique password and store it securely, and protect your subscription credentials separately. The service's privacy messaging is “anonymous, no logs.” This is a policy statement; it doesn't mean your website login state, browser identifiers, or information you submit are automatically erased.

Route labels also have specific meanings. IEPL refers to a particular dedicated transmission link. A relay route generally sends a request to an entry point before forwarding it to an exit. Direct connection generally means the client connects straight to the server. These terms aren't proxy protocols, and a route label alone can't tell you whether an app will perform smoothly. When reviewing the route list, test with your actual apps rather than treating route names as speed test results.

VPNQM accepts Alipay, WeChat Pay, and USDT, and offers a 30-day no-questions-asked refund. If you need help, submit a support ticket through the dashboard with the client name, operating system, time of the error, and steps to reproduce it. Hide your password and subscription link first. Details such as which app won't connect, which rule matched, and what changed after switching routes help troubleshoot the issue more than “the connection isn't working well.”