Why a proxy connection gets reset, and how to fix each cause

A reset connection looks like failure. The terminal says connection reset, or connection refused, or recv failure, and the instinct is to assume the proxy is down. It almost never is. That message is the system telling you something specific, and specific problems have specific fixes. Nearly every reset we see traces to one of four causes. Work through them in order and the fix is usually a single line.

Start with the whitelist, because it’s most of them

This is the one that catches the most people. If you have added any IP to your whitelist in the dashboard, access is now gated by IP: only those addresses can connect, and they connect with no username or password at all. A request from any other IP is refused, even when you send perfectly valid credentials.

The trap is that IPs move. Home connections, mobile networks, and cloud instances all get handed new addresses without asking you. The IP you whitelisted last week may not be the one you are on today, and the moment it changes, the door closes.

There are two clean ways out. Add your current public IP under Whitelist in the dashboard — find it by opening https://api.ipify.org from the exact machine that will connect. Or clear the whitelist entirely and authenticate with username and password, which works from any IP. Pick one path and commit to it, because the two do not stack: as soon as a single whitelist entry exists, it is the only way in.

If you are on a connection whose IP changes — most home and mobile lines are — username and password is the calmer choice. It travels with you.

You are knocking on the wrong door

Each product has its own endpoint and port. Budget Unlimited, Premium Unlimited, Residential / ISP, Mobile, IPv6, and Static ISP do not share a front door, and pointing one plan’s credentials at another product’s endpoint resets the connection every time.

This one is sneaky because the credentials are valid, so it feels like it should work. But the service you reached was never set up to serve your plan, so it closes the connection instead of answering. If you own Budget Unlimited, your door is residential.proxyomega.com on your assigned ports — not the Residential / ISP endpoint, and not the Mobile one.

The fix is to check the endpoint and port against the plan you actually hold. Your dashboard shows the exact host and port for your product, and the documentation lists every product’s endpoint in one table. Match them and the reset disappears.

Your plan lapsed, or has not finished setting up

Access ends when a plan expires — cleanly, at the expiry moment, with no grace window that keeps old credentials alive. If a plan you thought was active stopped working, confirm in the dashboard that it still shows time remaining. On the pay-as-you-go products, Residential / ISP and Mobile, also confirm you still have GB balance, because a drained balance behaves like an expired plan.

The reverse also happens: a plan bought a minute ago may need a short moment to finish provisioning before it will accept connections. If you just purchased, give it a beat and try again before assuming something is wrong.

You are aiming at a blocked port

Some destination ports are closed on purpose. Email ports in particular — the ones mail servers listen on — are blocked across the network, so a request that tries to send mail through a proxy will not complete. That is a policy, not a fault. Keeping that traffic off the pool is part of what keeps the pool’s reputation clean, which is what keeps your normal traffic working.

If you are connecting to an ordinary web target on the usual web ports, this does not apply to you. If you are pointed at a mail port and seeing resets, that is your answer, and it is working as intended.

The thirty-second test that tells you which one it is

You do not have to guess. One request from a terminal isolates the problem. Send a single proxied request to a URL that simply echoes back the IP it saw, and read the result. Swap in your own username, password, endpoint, and port:

curl -x "http://user123:[email protected]:10000" https://api.ipify.org

Then read what comes back:

• An IP that is not yours, with HTTP 200 — the proxy works. The problem is on the client side: wrong credentials in your app’s code, a whitelist mismatch, or a local firewall between you and the proxy.
• HTTP 407 — your credentials were rejected. Re-copy the username and password from the dashboard, and check your targeting suffix for a stray space or a parameter your product does not accept. (More on that in targeting by country, city, or ASN.)
• Connection reset or refused — back to the whitelist and endpoint checks above. That is almost always one of those two.

This single command turns “it doesn’t work” into a precise line you can fix.

When it genuinely is us

Now and then none of the above applies and the fault is on our side. If you have worked the checklist and a clean terminal test still resets, tell us the product, the endpoint and port you are using, the exact error, and a redacted sample of the request. That detail is what lets us pinpoint it in minutes instead of trading messages for an afternoon. You can reach us at [email protected] or through the in-dashboard chat.

The takeaway is quieter than the alarm the message sets off. Most reset connections are a whitelist that moved, a door that does not match the plan, a lapsed balance, or a blocked port — small problems with small fixes. Reach for the terminal test early. The error it hands back is usually the whole answer, and the troubleshooting guide has the step-by-step for each case when you want it.