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Proxy error 502 tunnel connection failed

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Proxy error 502 tunnel connection failed

Nov 08, 2018 · 502 Connection failed is one such error reported by Fiddler, a web app debugging tool. It means that Fiddler’s request for a web page was blocked (or request delayed) by the site’s web server or firewall or load balancer, causing the request to timeout. There could be other reasons also for this issue. my question is it our firewall throwing this server ? or 3rd party server proxy server throwing this ? how do a troubleshoot this one please? Thanks for ur help

Oct 19, 2021 · Why is there a 502 proxy Error? ... If the connection proxy > server drops. ... “The server failed to fulfill an apparently valid request.” They don’t tell you … Have recently jumped from v2.3 to v5 and am having issues with a 502 error, "Gateway Connection Failed". This failure seems to be occurring randomly. For example, I can start capturing web traffic just fine, and in this case, I'm using Fiddler to ensure eLearning courses are sending a heartbeat/keep-alive to our Learning Management System.FULL PRODUCT VERSION : java version "1.6.0_14" Java(TM) SE Runtime Environment (build 1.6.0_14-b08) Java HotSpot(TM) Client VM (build 14.0-b16, mixed mode, sharing) ADDITIONAL OS VERSION INFORMATION : Windows XP SP2 EXTRA RELEVANT SYSTEM CONFIGURATION : The server is on our client's network which we access via a "Juniper Network Connect" vpn solution (v6.4.0.14343) A DESCRIPTION OF THE PROBLEM ... In the \"Network\" section, click Change proxy settings. This will open the Internet Properties dialog (Windows) where you can adjust your network settings. Click on the Connections tab, and then click LAN Settings. Under Proxy server, click to select the Use a proxy server for your LAN check box. my question is it our firewall throwing this server ? or 3rd party server proxy server throwing this ? how do a troubleshoot this one please? Thanks for ur help

cannot connect to proxy oserror tunnel connection failed 407 proxy authentication required