Six checks, in the order that finds the cause fastest, for a Lalicat profile that cannot use its proxy.
1. The proxy type does not match the IP. Lalicat lists HTTP, HTTPS, Socks 4 and Socks 5; a Proxy302 IP is HTTP (port 2222) or SOCKS5 (port 3333), and the type must be the one My assets shows for that IP.
2. A field is wrong. IP address and port are required; account and password belong to proxies that have them, and a Proxy302 IP does. A missing digit, swapped fields or a trailing space is enough to fail the check.
3. The IP has expired or the proxy account is no longer valid. Lalicat names an expired proxy account as the first reason a profile fails even when the IP itself tested as available.
In Lalicat open Add browser (or Edit on the profile), Basic Configuration, Proxy settings. Set the proxy type to the protocol My assets shows for the IP: HTTP or SOCKS5. Do not pick HTTPS, Socks 4 or the Without proxy (direct connection) mode for a Proxy302 IP.
Expected result Check the Proxy shows detailed IP information.
Copy host, port, username and password with the copy buttons in My assets instead of typing them. Paste each into its own field and look for a leading or trailing space.
Before continuing Do not paste the whole line into the IP address field: Lalicat's help pages show separate fields.
Open the IP in My assets and read the end date. An expired IP stops working; renew or buy a new one and update the profile. Auto-renew is optional and set per IP in My assets.
If the IP is inside its term and still will not connect, open a Support ticket with the order number. A failed IP is fixed by reissuing it.
Close other VPN, accelerator or system-proxy software, restart the Lalicat profile and check again. Lalicat's help page lists a conflict with another VPN as one reason a profile will not run.
Run the curl commands below from a terminal. If curl returns the exit IP, the proxy works and the problem is in the Lalicat settings (steps 1 and 2).
Check Type and port: does the type match the protocol tag in My assets?
Fix Change the type, keep the port shown for that IP (2222 for HTTP, 3333 for SOCKS5), check again.
Stop when If both types fail, stop changing settings and run the curl test.
Check Expired term, IP restrictions or a VPN conflict, the three reasons on Lalicat's help page.
Fix Check the end date in My assets, close other VPN software, then open a ticket with the order number if it still fails.
Check Host, port and your own network.
Fix Copy host and port again; try another network, such as a phone hotspot.
Stop when If it times out on every network, open a ticket with the order number.
Check Username and password.
Fix Copy both again from My assets; special characters are easy to mistype.
Check Did you assign the right IP to this profile?
Fix Compare the exit IP with My assets and the guide on checking an IP's location.
| Item | curl test | Most likely cause |
|---|---|---|
| Check the Proxy fails | Fails | Address, port, credentials, expiry or your network |
| Check the Proxy fails | Works | Lalicat settings: type or field typed wrongly |
| Check the Proxy passes, profile will not run | Works | Expired term, restricted IP or a VPN conflict on the computer |
| Both pass, wrong country | Works | A different IP is assigned to the profile |
Combination of the two tests; the three reasons for a profile that will not run are from Lalicat's help page read on 14 November 2026.
# HTTP IP (port 2222)
curl -x http://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/json
# SOCKS5 IP (port 3333); socks5h also resolves DNS through the proxy
curl -x socks5h://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/jsonExample only: replace LOGIN, PASSWORD, HOST and PORT with the values from My assets.
Lalicat's help pages do not list error messages or say which network the check runs from, so this guide does not guess at either. It lists only the reasons the pages state, plus the checks that apply to any proxy.
A passing check shows only that the proxy connects. Platform rules are separate: use each account the way the platform allows, from an IP that matches the account's country.
Lalicat does not sell proxies, so the IP comes from Proxy302. For accounts you keep for months, rent a static ISP IP per profile: from US$0.50 for 1 day to US$7.99 for 30 days, the same price in every country. The full setup with menu names is on the Lalicat page.
Open My assets, click the IP for this profile and note the protocol tag, host, port, username and password.
In Lalicat open the profile's Proxy settings and pick the matching type, then fill in IP address, port, account and password.
Click Check the Proxy and save when detailed IP information appears.
Open an IP checker inside the running profile and compare the address with My assets.
The proxy type against the protocol tag in My assets, then the four fields copied from My assets with no spaces.
Yes. Its type list is HTTP, HTTPS, Socks 4 and Socks 5. Proxy302 issues HTTP or SOCKS5 only.
Lalicat's help page gives three reasons: the proxy account expired, the IP is under restrictions, or it conflicts with another VPN on the computer.
Lalicat advises one account, one proxy IP and one profile, so buy one IP per profile.
Open Proxy302 Fast Connect from the Tools & checks page, click 「一键加速」 (One-click boost) and keep it open while you use the proxy.
Add a Proxy302 IP to a Lalicat profile: Add browser, Basic Configuration, Proxy settings, pick the type, fill in IP, port, account and password, click Check the Proxy, save.
The ERR_PROXY_CONNECTION_FAILED error appears in Chrome and Edge when the browser cannot establish a connection with a proxy server.
Set up a proxy in AdsPower, BitBrowser, GoLogin, Kameleo, Hidemium or GenLogin: one IP per profile, where each field goes, and what a failed proxy check really means.
Check the exit IP, country and ISP your proxy really gives you in 30 seconds — and why IP databases disagree on the city. With our own test of three lookup services.
Official documentation · Confirmed on:
Read on 14 November 2026: the proxy section of the page and its Solution note, which says a profile may not be able to browse even when a test with another proxy works, and points to a VPN or proxy conflict on the computer.
Official documentation · Confirmed on:
Read on 14 November 2026: the proxy type list HTTP / HTTPS / Socks 4 / Socks 5; the Check the Proxy button shows detailed IP information; three reasons a profile may not run even when the IP tests as available: the proxy account expired, the IP is under restrictions, or the IP conflicts with another VPN.
Product observation · Confirmed on:
Product facts file of the site (checked 10 November 2026): HTTP on port 2222 and SOCKS5 on port 3333; each IP is shown in My assets with one protocol; a per-IP lease also connects over the other protocol on its port, a per-GB Fixed ISP exit does not; a failed asset is reissued after a Support ticket with the order number; static ISP from US$0.50 for 1 day to US$7.99 for 30 days; auto-renew is optional.
Create an account, top up once, then pick rotating residential, static ISP or datacenter IPs and have one running in your browser within minutes.
