Proxy 502 Bad Gateway: Separate Proxy, Upstream, and Destination Failures
Diagnose a proxy 502 Bad Gateway response by proving which gateway returned it, locating the failed upstream stage, and comparing one controlled route before retrying.
Proxy Connection Reset: Separate Client, Proxy, Target, and Idle Timeout Causes
Diagnose a proxy connection reset by locating the failure stage, identifying which side closed the socket, testing idle-timeout behavior, and comparing one controlled route before retrying.
Proxy TLS Handshake Failure: Separate Certificate, SNI, Protocol, and Route Problems
Diagnose a proxy TLS handshake failure by separating certificate validation, SNI routing, TLS version, client configuration, and exit-route health before retrying or replacing the proxy.
Proxy Cost Per Successful Request: Measure Failed Retries, Session Waste, and Route Yield
Measure proxy cost per successful request by tracking billable traffic, failed retries, timeout stage, usable sessions, and route yield before changing plans or scaling traffic.
Proxy Timeout Troubleshooting: Separate DNS, Connect, and Read Delays Before You Retry
Use this proxy timeout troubleshooting path to separate DNS lookup delay, TCP connect timeout, proxy handshake failure, target read delay, and retry boundaries before changing routes.
Private Proxy Setup Audit: Check Device, Browser, DNS, and Exit Route Before Login
Use this private proxy setup audit to verify device context, browser settings, DNS behavior, exit route identity, and stop conditions before account login.
Proxy Session Mismatch: Check Route Identity Before Account Access
A practical diagnostic order for proxy session mismatch before account access, covering exit IP identity, sticky route timing, DNS behavior, connection reuse, and stop conditions.
Proxy Header Leak Check: Forwarded Headers, Via, and Origin IP Exposure
A practical checklist for finding proxy header leaks before account access workflows rely on a route, covering X-Forwarded-For, Via, Forwarded, origin IP exposure, and request consistency.
Proxy Route Drift: Check When an Account Stops Using Its Assigned Exit
Proxy route drift happens when an account no longer uses the exit you assigned. Use this checklist to verify outbound IP, DNS behavior, fallback rules, reconnects, and stop conditions before changing routes.
Proxy Authentication Failed: Check 407, Credentials, and IP Allowlist Scope
A practical checklist for diagnosing proxy authentication failures before rotating IPs, covering 407 responses, username and password format, IP allowlists, protocol scope, and header handling.
