The Complete AI Tools Access Guide

Most websites use a blunt test: if a connection can be established and content comes back, you are through. AI services are not like that. They make a judgement at sign-up, at login and on every single chat request — and they weigh more than one signal. Once you understand this layer, every “switching to another route fixed it” story starts to make sense.

Where the exit IP is registered, and what type it is

When an AI service receives a request, the first thing it looks at is which IP the request came from: its location, the carrier or data centre it belongs to, and whether it is a data-centre address or a residential one. A data-centre IP is not a problem in itself — plenty of legitimate corporate gateways use them — the question is whether that IP has been used heavily recently or has a record of unusual calls. When one IP block sees a burst of sign-ups or high-frequency requests in a short window, the whole block gets downranked: pages still load, but the login endpoint gets blocked and captchas keep appearing.

This is also why “the homepage loads” and “the service works” are two different things. Homepages are mostly static assets and get the loosest checks; the real risk scoring happens on the login and chat endpoints. Using “can I open the homepage?” as your test of a route is basically not testing anything.

Region checks look at more than the IP

Besides the IP, the service also looks at your browser time zone, interface language, and the account's sign-up region and login history. If the IP says the United States, the system time zone is UTC+8 and the browser language is Chinese, those signals together suggest the current environment does not match the account's usual one. That may not restrict the account immediately, but it clearly raises the odds of a second verification step. Aligning your time zone and language with the exit region is the cheapest step you can take.

What long-lived connections and streaming demand from a route

Chat tools stream their replies: during a single answer the client and server must keep the connection open while content is pushed through in small chunks, and the whole thing can last tens of seconds. What this connection fears most is not high latency but jitter and packet loss — a route with stable but slightly high latency feels smooth, while a route with low latency that drops packets now and then will cut an answer off halfway.

So judging whether a route suits you means looking at three different use cases: browser chat needs stability and a clean exit, uploads and downloads need bandwidth, and API calls need low latency and a fixed exit. Measure all three by the same standard and one of them will always feel wrong.

Where an ordinary proxy tends to fail

• Rotating exits: every connection uses a different exit IP, the login location jumps around the map, and the account environment never stops changing.
• Long connections get reclaimed: intermediate devices along the path time out idle connections, so the connection drops before the conversation is over.
• Incomplete UDP support: some tools default to UDP-based HTTP/3, and when the route does not support it the page just spins.
• DNS resolved locally: the domain resolves to a nearby address that cannot be reached, so the connection never gets established.

Sign-up and login are the two moments when risk scoring is most concentrated. Get through them smoothly and day-to-day friction drops a lot; fail them and no number of route changes will feel right. This step gets its own section because it is more directly tied to your route than most people assume.

Fix your exit before you sign up

Pick a route before you sign up and stay on it; do not switch regions while registering. The exit IP you use at sign-up becomes the account's first environment fingerprint, and every later login is compared against it. Jumping continents on the very first login is one of the easiest ways to trigger verification.

Signing up for VPN-LG only needs a username and password — no email address — so the form itself takes seconds. What really deserves attention is the network environment you sign up from, and whether it stays stable over the following days.

Keep your time zone and language consistent

When you connect through a route in a given region, setting your system time zone to that region's common time zone and adjusting your browser language to match lowers the odds of triggering verification. It is not mandatory, but it makes “asked to verify every time I log in” far less common. Conversely, an IP in Tokyo, a UTC+8 time zone and a Chinese browser language are three signals that contradict each other, and risk scoring is more likely to ask again.

Three kinds of login failure, three different fixes

“Cannot log in” covers at least three different situations, and they need completely different handling:

• The page will not open at all: a network-layer problem. Switch to another route, or switch route type (direct to relay, relay to dedicated line).
• The page opens, but login errors out or keeps asking for verification: a risk-layer problem. The exit's reputation has usually been dragged down; move to a route with a cleaner exit, log out, then log back in.
• Login succeeds, then you are dropped a few minutes later: a session-layer problem. Check whether the route is jittering frequently, and make sure the browser is not set to clear data on exit.

Keep one account to one or two regions

Logging in from Japan today and Germany tomorrow looks, to risk scoring, much like an account shared by several people. For everyday use, pick one or two regions and stay there; if you really need to change region, log out first, switch the route, then log back in rather than switching mid-session.

VPN-LG has no device limit, and five devices can be online at once. When several devices are in use, the safer approach is to put them all on a route in the same region rather than connecting each one to a different country — the latter makes a single account appear in several locations within minutes.

Keep multiple accounts separated

If you really do need several accounts at once, do not let them share the same exit. Accounts logging in from one IP are easy to associate with each other, and if one of them trips a limit the rest may be handled together. Giving each account a relatively fixed exit is a very cheap layer of isolation.

The browser is where most people spend their time, and where problems look most mysterious: the page loads, the input box takes text, and the answer still freezes halfway. Break a single conversation into stages and the problem gets much more concrete.

What happens during one conversation

After you type a question, the browser first calls the chat endpoint with your session credentials; once the server authenticates it, content starts streaming back; the front end renders it as it arrives. Whatever breaks, the user sees “it froze”, but the causes are completely different: failed authentication errors out immediately, a connection that never establishes spins forever, and a connection that drops mid-stream leaves the content hanging on half a sentence.

Three ways a reply breaks, and what causes each

• It spins forever and the first word never arrives: the connection was never established. Common causes are a route that is down, a DNS resolution problem, or the target service rejecting this exit.
• Output stops halfway: the connection was cut during transfer. Usually route jitter, or an intermediate device timing out and reclaiming an idle connection.
• The answer completes, but the next message fails: the session credentials expired or were cleared. Refresh the page to re-establish the session; no need to change routes.

Refresh after leaving a tab idle

Leave a chat page untouched for ten minutes or so and the server will reclaim the connection. That is normal behaviour, not a route fault. Before you carry on, refresh the page to rebuild the session — it is less trouble than typing into the old page, which usually ends up as “the message was sent but nothing ever came back”.

A few browser-side switches

• Tab power saving and sleep: once a background tab is frozen, the streaming connection is suspended and the content may be incomplete when you return.
• Data-saving and compression proxies: an extra middle layer makes long connections easier to cut off; turn it off first when troubleshooting.
• HTTP/3 compatibility with the route: some tools default to UDP-based HTTP/3. If the route's UDP support is incomplete you will see slow loading or endless spinning; turn HTTP/3 off in the client and try TCP instead.
• Ad-blocking extensions: a few rules catch streaming requests to chat endpoints by mistake; disable them temporarily while troubleshooting.

Multiple tabs and concurrency

Keeping several chat pages open means holding several long connections at once. On the lower data tiers these connections compete for bandwidth and every page feels slower. If you need to work in parallel, stagger the tabs or move to a plan with more data. The three monthly plans are ¥9.9/month with 60GB, ¥18/month with 250GB and ¥28/month with 500GB; data resets monthly on your activation date, so you can estimate from your own concurrency habits.

The same account working fine in the browser while the API errors out is a very common combination. The reason is that, from the server's point of view, these are almost two different clients: different authentication, different request patterns, different rate-limit rules.

Different authentication

The browser relies on session credentials obtained at login and stored in a cookie, which the user never has to think about; the API relies on a key sent in a request header, which the caller has to look after. If a key leaks, someone else can spend the account's quota with it, and the risk records land on the account. So keep keys in server-side environment variables or a secret manager only — never in front-end code, never committed to a repository.

VPN-LG's sign-up and use do not involve an email address, but protecting the API key is the caller's responsibility. This has nothing to do with routes, and it causes more incidents than routes do.

Different request patterns

The browser makes a few long connections that stay open for a long time; the API makes many short connections at high frequency with small payloads. That means the two use cases want almost opposite things from a route: the browser fears jitter, the API fears latency and a changing exit. Running an API over a route that is great for video will not necessarily give you better results.

Concurrency and rate limits

AI services usually rate-limit their APIs by requests per minute or tokens processed per minute, and return 429 (Too Many Requests) when you exceed it. When several devices or processes share one exit, the limits stack — each caller thinks it is using very little, and together they go over. Controlling concurrency and spreading batch jobs out usually works better than changing routes.

A stable exit matters more for APIs

Many services compare the source IP of API calls against the account's usual login locations. The browser occasionally appearing in another region has limited impact; an API sending requests from a different IP block every day is far more likely to be flagged, showing up as intermittent 403s or repeated verification. Pinning API calls to one exit route is the standard fix for this class of problem.

A minimal working example

Below is the smallest example of making a request through VPN-LG. The address, key and port are placeholders — replace them with your own. No real subscription URL or key appears in the example.

# Send all requests from this terminal through the local proxy port the client provides
export HTTPS_PROXY="http://127.0.0.1:7890"
export HTTP_PROXY="http://127.0.0.1:7890"

# Connect to local and intranet addresses directly, without going through the proxy
export NO_PROXY="localhost,127.0.0.1,.internal"

curl -sS "https://example.com/v1/chat/completions" \
  -H "Authorization: Bearer sk-xxxx" \
  -H "Content-Type: application/json" \
  -d '{"model":"your-model","messages":[{"role":"user","content":"ping"}]}'

Use the port shown in your client's interface; default ports differ between clients. The domain and key in the example are placeholders and cannot be used as-is.

The trouble with development setups is that the same tool may work in a browser but not in a terminal, and once you have it working in the terminal an editor plugin may still be going direct. The reason is that each has its own network stack and proxy settings, and none of them inherits another's automatically.

Command line: work out which kind of proxy a program understands

Terminal programs fall roughly into three groups in how they handle proxies: those that read environment variables (HTTP_PROXY, HTTPS_PROXY, NO_PROXY), those that only read their own config file (git's http.proxy, for example), and those that ignore proxies entirely. When “the environment variable is set but nothing happens”, first work out which group the program belongs to, then decide whether to change the variable or the config file. Also watch the case of environment variables: some programs only accept the uppercase form, others accept both.

Proxy only what should be proxied

Putting intranet addresses, local addresses and private source domains into the NO_PROXY allowlist saves a lot of inexplicable timeouts. The usual entries are localhost, 127.0.0.1 and your intranet domain suffixes. Conversely, if a domain resolves through local DNS but needs to go through the proxy to be reached, add it to the proxy rules explicitly instead of hoping global mode will cover it.

IDE plugins and editors

Code-completion plugins and built-in AI assistants in editors usually make requests from a separate process and do not follow system proxy settings, so you need to enter the proxy address in the editor's own settings, or let the client take over all traffic in global mode. The test is simple: fine in the browser, spinning forever in the editor almost always means the plugin is not using the proxy.

If your editor has a terminal panel open, remember that terminal inherits the editor's environment variables, which may differ from your system terminal — a proxy configuration that works in the system terminal may not take effect in the editor's.

CI and containers

• Cloud CI: runs inside the provider's own network and usually needs no extra proxy; when it must reach specific resources, configure the egress as the platform's docs describe.
• Self-hosted runners: need the proxy configured explicitly, and the proxy address should be managed as a credential rather than written straight into the pipeline file.
• Containers: Docker containers do not inherit the host's proxy environment variables by default; pass them in explicitly at build or run time.
• Logs: do not let the pipeline print full request headers, so keys never end up in build logs.

A configuration snippet for containers

# Pass the host proxy into the container at run time (use the address your machine actually listens on)
docker run --rm \
  -e HTTPS_PROXY="http://host.docker.internal:7890" \
  -e NO_PROXY="localhost,127.0.0.1" \
  your-image

On Linux, host.docker.internal needs an extra mapping, or use the host's address on the Docker bridge instead; the port in the example is a placeholder, so use whatever your client actually listens on.

Keep configuration in one place

Configuring a proxy separately in the command line, the editor and containers is a recipe for “I changed one and the other two are still on the old value”. Put the proxy address in one config all three can read — define variables in your shell startup script and have the editor and containers reference the same value, so switching routes means changing one place and you spend less time working out which layer still has the old setting.

“Bans” and “rate limits” are often lumped together, but they have different causes: rate limiting is a frequency problem and usually clears on its own; a ban or temporary restriction is a judgement call and needs an appeal or waiting. Work out which one you are dealing with before acting, and you will save a lot of pointless route switching.

Rate limits can come from three places

Rate limits can come from three places: the AI service's own account-level limits, shared limits on the exit IP, and your VPN-LG plan's data allowance. The first two show up as “request rejected”; the third shows up as “data exhausted”. How to tell: try a different tool on the same exit — if it errors the same way, the problem is more likely the exit; try the same account on a different exit — if it recovers, the problem is the exit IP's reputation.

Exit reputation builds up over time

The longer you use one exit and the more consistent your behaviour, the closer its record looks to a normal user's. Switching routes constantly keeps the account's environment in permanent flux. That is why staying on one or two routes long term is usually steadier than “whichever is fastest today” — the latter hands risk scoring a fresh comparison sample every time.

What to do, in order, when something breaks

1. Separate the layers first

   Work out whether it is the network layer (cannot connect), the risk layer (connects but is rejected) or the session layer (connects but drops).

2. If it is the network layer

   Change route type: direct to relay, relay to dedicated line; or turn off HTTP/3 and try TCP once.

3. If it is the risk layer

   Move to a route with a cleaner exit, log out and log back in. Do not retry rapidly over and over — a burst of attempts is itself recorded as unusual.

4. If it is the session layer

   Refresh the page to rebuild the session, check whether the browser clears data on close, and confirm the route is not jittering frequently.

5. If it is the account layer

   If the account itself is confirmed as restricted, the only route is the provider's appeal process. Changing routes will not fix it, but you can pin the exit so the environment stops changing while the appeal is under way.

Do not treat changing IP as a universal fix

Most cases described as “the IP is blacklisted” are really an exit whose reputation has been dragged down, and a clean route fixes them. But if the account itself is already restricted, changing exits only moves you to another position that gets rejected the same way. The order is always: separate the layers first, then act — not switch routes first and see what happens.

Different kinds of AI tools want different things from the network. Judge them all by one standard and one category will always feel wrong. Below they are grouped by usage pattern, with what to watch and the matching route type; the full route list is on the route list page, where you can check them one by one.

How the three route types differ

VPN-LG routes fall into three types by how they connect, and each suits different situations:

Choosing a route: pattern first, then region, then tier

The suggested order is: pick the route type from your usage pattern, then pick the exit location from the regions the tool supports, then pick the plan tier from your monthly usage. Do not choose the region by gut feeling — the same tool can be available in some regions and not others, so confirm which regions it supports first, then pick the matching exit from the VPN-LG route list.

The tier depends on usage. There are three monthly plans: ¥9.9/month with 60GB, ¥18/month with 250GB and ¥28/month with 500GB; data resets monthly on your activation date, and upgrading mid-cycle converts the price difference into remaining days. If your usage is concentrated in a few months and light the rest of the time, data packs suit better: ¥158/300GB, ¥358/1000GB and ¥658/3000GB, valid until used up and never expiring. Both options accept Alipay, WeChat and USDT, and both come with a 14-day money-back guarantee.

On coverage, VPN-LG currently offers 120+ countries / 190+ routes, with no device limit and five devices online at once. When you have many devices and high concurrency, the data allowance is more likely to be the bottleneck than the routes themselves.

This chapter is meant to be looked up. Find the symptom closest to yours and work through the steps in order, pausing to test after each one — do not change five settings at once, or you will never know which one fixed it.

Symptom: the tool's homepage will not open

1. Confirm the client is connected and the current route's region matches a region the tool supports.
2. Switch to another route in the same region (dedicated line to relay, or the reverse) to rule out a single bad route.
3. Turn off HTTP/3 or QUIC and force TCP, then try again.
4. Check whether your system DNS is being taken over by the local network, and set DNS manually if needed.
5. Open an ordinary website to confirm the route itself has internet access, separating “the route is down” from “this tool is unreachable”.

Symptom: the page opens, but login is rejected or keeps asking for verification

1. Log out, switch to a route with a cleaner exit, then log back in.
2. Set your system time zone and browser language to match the exit region.
3. Do not retry rapidly over and over; a burst of attempts is recorded as unusual.
4. If other tools on the same exit also misbehave, change routes first; if only this one tool does, the problem is more likely on the account side.

Symptom: the reply stops halfway

1. Refresh the page to rebuild the session and send the message again to see whether it was a one-off.
2. If it keeps happening, switch to a dedicated-line route.
3. Turn off browser power saving and tab sleeping, and temporarily disable ad-blocking extensions.
4. Check whether several chat pages or a large download are running at once, and stagger them.

Symptom: speed keeps swinging

1. Compare against another route in the same region to tell whether it is the route or the target service at a busy hour.
2. Avoid your local network's busy hours — other devices downloading on the same network will noticeably hurt the experience.
3. Cross-continent routes usually fluctuate more in the evening than intra-Asia routes, so schedule important work for stable hours.

Symptom: only one tool fails

1. Switch to a route in another region the tool supports.
2. Check whether the tool uses its own network stack (editor plugins, command-line tools); if so, configure a proxy for it separately.
3. If another route still fails while the browser works fine, suspect the tool itself or the account side rather than changing routes again.

Symptom: unstable with several devices at once

1. Check that your plan's data tier covers your combined usage. Data resets monthly on your activation date, and you can see usage in the account overview of the user panel.
2. Put every device on a route in the same region to reduce jumps in the account environment.
3. Keep bandwidth-heavy tasks (downloads, asset uploads) and long-connection tasks (chat) in separate time slots.

Below are the questions this page gets most often. If your situation is not covered, browse the Help Center by category, or open a ticket from the user panel.

What to read next

This page explains each stage in depth; it does not walk you through the whole process. If you have not installed the client or imported your subscription yet, start with the main flow on the guides page. To check specific regions and routes, go to the route list; to check prices and refund terms, go to the pricing page.