Check fails when adding the proxy
Check Connection type, Proxy (ip:port), username and password against My assets.
Fix Re-enter them, or paste the whole ip:port:username:password string into the ip:port field and let Incogniton split it.
The Check button fails or a profile will not start through its proxy: what Incogniton's documentation points to, and the order to check it in.
Connection type or authentication does not match. The Add proxy form offers HTTPS or SOCKS5 as the connection type, and Incogniton's troubleshooting page says it must match what your provider issued, and so must the username-and-password or IP-authorization method.
The port is missing from the address field. The Proxy (ip:port) field needs the port in it; you can also paste a full ip:port:username:password string there and Incogniton fills the other fields.
The proxy itself is down or out of date. If it fails in an ordinary browser too, the fault is the IP or its lease, not Incogniton.
In Proxy Library, using + New proxy and then the Proxy (ip:port) field, enter host and port exactly as shown in My assets, one value per field (or in the single field the app uses). The usual slips are a typo in the host, an extra digit in the port, or host and port swapped. Paste from My assets instead of typing.
Expected result The fields match My assets character for character.
Set Connection type to HTTPS or SOCKS5 to match the asset. Each IP in My assets is issued with one protocol: HTTP on port 2222, SOCKS5 on port 3333. In our test of 4 November 2026 a static ISP per-IP lease also worked over the other protocol on its own port with the same login, but a per-GB asset did not, so use the protocol the asset shows.
Expected result Protocol and port point to the same service as the asset.
Copy both in full. A space copied at the end, a missing special character or a login from another asset is enough to fail. If the failure is a 407 or a sign-in prompt rather than a plain connection error, the address is reachable and credentials are the thing to fix.
Expected result The check no longer says the credentials were refused.
Turn off any VPN or other proxy on the computer and try again, and check that a firewall or antivirus is not blocking the port. Incogniton's documentation also says a profile launch that fails with a connection error shows a red cancel icon next to the profile.
Expected result The same proxy works once nothing else is sitting between the computer and it.
Open My assets and check that the lease is still active and, on per-GB assets, that traffic is left. Then run the curl test below from the same computer. If curl also fails, the problem is the IP or its lease, not the app.
Expected result curl returns JSON with an exit IP.
Check Connection type, Proxy (ip:port), username and password against My assets.
Fix Re-enter them, or paste the whole ip:port:username:password string into the ip:port field and let Incogniton split it.
Check Whether Incogniton can read IP-based data for the profile.
Fix Per Incogniton's documentation: in Browser & Navigator turn off Fill timezone based on IP and set the timezone yourself; in Privacy & Network turn off Fill WebRTC Public IP based on the IP and Fill location based on IP and set them by hand.
Check Whether the asset is a per-IP static ISP lease.
Fix In our 4 November 2026 test a per-IP static ISP lease also connected over SOCKS5 on port 3333 with the same login. Choose SOCKS5 and port 3333; a per-GB asset does not do this.
# HTTP asset (port 2222)
curl -x http://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/json
# SOCKS5 asset (port 3333; socks5h also resolves DNS through the proxy)
curl -x socks5h://LOGIN:PASSWORD@HOST:PORT https://ipinfo.io/jsonExample only: replace the placeholder values with your own. Use the line that matches the asset protocol.
Incogniton's documentation suggests testing the proxy in another tool, for example Firefox with FoxyProxy. curl does the same job: run it below from the same computer.
If it works outside Incogniton, the cause is in the profile settings. If it fails, check the IP and lease. The guide on checking where a proxy exits shows how to confirm the exit location.
A static ISP IP stays the same for the lease term, so one profile can keep one address. The first setup is on the Incogniton integration page; for a fix, the steps below are enough.
From mainland China, start Fast Connect from the Tools & checks page first and keep it open while you use the proxy.
Open My assets in the console and click the IP. Note the protocol (HTTP or SOCKS5) and copy host, port, username and password.
Enter the four values in Incogniton and choose the same protocol. Do not type them by hand if you can paste.
Run the curl test above from the same computer. If curl returns JSON with an exit IP, the IP works and the fault is in the app settings or the app network.
If curl fails too, check that the lease is still active, then open a Support ticket with the order number: a failed IP or proxy is fixed by reissuing it.
Static ISP per-IP leases run 1, 3, 7, 30, 60 or 90 days, from US$0.50 for 1 day to US$7.99 for 30 days. There is no free trial; the smallest purchase is one IP for one day.
The usual causes are a connection type that does not match the proxy, the wrong login method, a missing port, or an IP that is down. Test the proxy outside Incogniton to tell which.
The Add proxy form lists HTTPS and SOCKS5, according to its documentation.
Yes. Paste ip:port:username:password into the Proxy (ip:port) field and Incogniton fills in the other fields; Bulk add takes one such line per proxy.
No. Incogniton has a separate page for a proxy that shows the wrong location; the Add proxy form also lets you switch the proxy information provider when geolocation validates incorrectly.
Official documentation · Confirmed on:
Read on 11 November 2026: Proxy Library > + New proxy; Connection type HTTPS or SOCKS5; Proxy (ip:port), username and password; a pasted ip:port:username:password string fills the other fields; the Check button verifies the connection; Bulk add takes one ip:port:username:password per line.
Official documentation · Confirmed on:
Read on 11 November 2026: confirm connection type, IP version, authentication method and ip:port; test outside Incogniton with Firefox and FoxyProxy; if it works there, turn off the IP-based timezone, WebRTC and location fill options and set them manually; then contact the proxy provider. A failed launch shows a red cancel icon.
Official documentation · Confirmed on:
Listed in the Incogniton documentation index on 11 November 2026 as a separate troubleshooting page; its body was not read, so this page does not describe its content.
Product observation · Confirmed on:
Product facts file of the site (checked 18-19 October 2026, protocol test of 4 November 2026): protocols and ports, lease terms and prices in US$, no free trial, failed assets reissued.
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