Troubleshooting
Everything tagged Troubleshooting.
74 articles
Topic Troubleshooting
Guide
Cloudflare 403 Forbidden: What Blocked You and What to Do
A 403 from a site behind Cloudflare is one of five answers: a challenge, a block page, a numbered error, the site's own refusal or a bare edge error. How to tell which one you got, who can fix it, and what our test of 140 Cloudflare sites showed.
October 22, 2026 · 13 min read
Guide
500 Internal Server Error through a proxy: who returned it and how to fix it
A 500 through a proxy comes from the website, the proxy or a gateway. How to tell which from the tunnel step, curl's words and the headers, and how to fix it.
October 11, 2026 · 8 min read
Guide
League of Legends IP ban explained: what Riot bans and what a new IP does not fix
Riot documents no IP ban for League of Legends. What it bans instead, from accounts to your PC (error VAN 152), how to tell which you have, and how to appeal.
October 11, 2026 · 9 min read
Guide
Valorant IP ban explained: what Riot bans and what a new IP does not fix
Riot documents no IP ban for VALORANT. Its real penalties, from queue timers to hardware bans for cheating (VAN 152), why a new IP does not help, and appeals.
October 11, 2026 · 7 min read
Guide
415 Unsupported Media Type error: causes and fixes
A 415 means the server will not accept the body in the format you sent it. See which Content-Type your client really sends, and the one-line fix for requests, curl and fetch.
October 10, 2026 · 6 min read
Guide
Amazon CAPTCHA explained: why Amazon asks and how to stop seeing it
Amazon shows three different checks: a text CAPTCHA, a continue-shopping robot check and an AWS WAF JavaScript challenge. What each reads and what fixes it.
October 10, 2026 · 8 min read
Guide
Cloudflare error 520: what it means and how to fix it
Cloudflare error 520 means the site's own server answered Cloudflare badly. The causes Cloudflare lists, what a visitor can do, and what the owner must check.
October 10, 2026 · 7 min read
Guide
Discord IP ban explained: how it works, how long it lasts and what to do
Discord says server bans are based on IP addresses, while its own suspensions are tied to accounts. How each ban works, how long it lasts and what to do.
October 10, 2026 · 10 min read
Guide
Facebook session expired error: why it happens and how to fix it
Facebook says session expired when the login your browser or app used has ended. What ends it, from Meta's own pages and our test, and the fixes in order.
October 10, 2026 · 13 min read
Guide
Instagram action block: causes, wait times and the proxy mistakes behind it
Why Instagram blocks a like, follow or comment, where it shows how long the block lasts, how to get the action back, and the proxy mistakes that add to it.
October 10, 2026 · 7 min read
Guide
Instagram challenge required error: what triggers it and how to clear it
Instagram's challenge_required error means it wants proof that a login is yours. What triggers it, how each tool reports it, and how to clear it safely.
October 10, 2026 · 10 min read
Guide
Instagram feedback required error: what it means and how to fix it
Instagram's feedback_required error reports a blocked action, the same block the app shows as Try again later. What triggers it and how to fix it.
October 10, 2026 · 8 min read
Guide
Instagram IP ban explained: how to tell, how long it lasts and what fixes it
Does Instagram ban IP addresses? What an address limit looks like, two tests to tell it from an account ban, how long it lasts and what fixes it.
October 10, 2026 · 8 min read
Guide
Python requests timeout: set it, handle it and fix proxy timeouts
Set a timeout on every Python requests call, see which error each stall raises, and why a dead proxy slips past except Timeout. Tested on three versions.
October 10, 2026 · 11 min read
Guide
Twitter rate limit exceeded error: what X limits and how to get past the message
“Rate limit exceeded” on X means your account, or an app acting for it, used up a limit X counts over time. Which limits X publishes, and what fixes it.
October 10, 2026 · 7 min read
Guide
Your IP has been temporarily blocked: what the message means and how to fix it
What “Your IP has been temporarily blocked” means, where it appears, how long each site says it lasts, and the fixes in order, from the platforms' own pages.
October 10, 2026 · 11 min read
Guide
Cloudflare Error 1020: What Access Denied Means in 2026 and Who Can Fix It
Cloudflare error 1020 means a security feature the site owner set, such as API Shield, blocked your request. What causes it now and who can lift it.
August 26, 2026 · 6 min read
Guide
Access Denied, Reference #18 (Akamai): What It Means and How to Fix It
The Access Denied page with a Reference #18 number comes from Akamai, not the site. What the number says, why you were refused, and what to do, in order.
August 24, 2026 · 8 min read
Guide
Ahrefs "Too Many Sessions" Error: What It Means and How to Fix It
Ahrefs lets one person use a login, on one device at a time. Why you get signed out, what a VPN or a proxy changes, and the fixes that stay inside Ahrefs' rules.
August 24, 2026 · 7 min read
Guide
"Proxy Check Failed" in AdsPower, Multilogin, GoLogin, or Dolphin: The Seven Reasons and the Fix for Each
A failed proxy check in an antidetect browser has seven causes: format, credentials, a local VPN, the allowlist, the protocol, a dead exit, or the network. How to tell which.
August 24, 2026 · 7 min read
Guide
Cloudflare Errors 1006, 1015 and 1020: What Each Code Means and Who Can Lift It
Cloudflare's 1xxx codes name what refused you: an IP, network or country ban, your browser, a rate limit or a security feature, and who can lift each one.
August 24, 2026 · 8 min read
Guide
CloudFront "The Request Could Not Be Satisfied": Every Version, What It Means, the Fix
The CloudFront error page comes in eight versions, from Request blocked and Bad request to the country block and the 504 timeout. What each second line means, from AWS and 628 reports.
August 24, 2026 · 10 min read
Guide
curl: (5) Could Not Resolve Proxy, and curl (97) Proxy Handshake Error: Causes and Fixes
curl exit 5 means curl could not use the proxy address it was given, very often -x typed for -X. Exit 97 is a failed SOCKS handshake. Every message, measured in curl 8.21 and 8.16.
August 24, 2026 · 12 min read
Guide
Docker Proxy Settings: Pulls, Containers, Builds and the proxyconnect Errors
Set Docker's proxy for pulls, containers and builds, and read each proxyconnect error from the words after it, with Go's source code and our own test run.
August 24, 2026 · 11 min read
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Honest guides and comparisons on proxies, scraping and staying unblocked, from the team that runs the network.