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  2. HTTP 502 - Wikipedia

    en.wikipedia.org/wiki/HTTP_502

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    502 Bad Gateway The server was acting as a gateway or proxy and received an invalid response from the upstream server. 503 Service Unavailable The server cannot handle the request (because it is overloaded or down for maintenance). Generally, this is a temporary state. [26] 504 Gateway Timeout

  4. List of SIP response codes - Wikipedia

    en.wikipedia.org/wiki/List_of_SIP_response_codes

    502 Bad Gateway The server is acting as a gateway or proxy, and received an invalid response from a downstream server while attempting to fulfill the request. [1]: §21.5.3 503 Service Unavailable The server is undergoing maintenance or is temporarily overloaded and so cannot process the request.

  5. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    Clear your browser's cache to reset your browser back to its clear state. Doing this will wipe out all the little unwanted bits of info that have been stored in your browser, resetting it and making it overall run better. Disable pop-up blocking software: You may need to temporarily disable your pop-up blocking software or add AOL to your allow ...

  6. Gateway (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Gateway_(telecommunications)

    A gateway is a piece of networking hardware or software used in telecommunications networks that allows data to flow from one discrete network to another. Gateways are distinct from routers or switches in that they communicate using more than one protocol to connect multiple networks [1] [2] and can operate at any of the seven layers of the OSI model.

  7. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Application-level gateway - Wikipedia

    en.wikipedia.org/wiki/Application-level_gateway

    The Application Layer Gateway service in Microsoft Windows provides support for third-party plugins that allow network protocols to pass through the Windows Firewall and work behind it and Internet Connection Sharing. [citation needed] ALG plugins can open ports and change data that is embedded in packets, such as ports and IP addresses.

  9. Restart the computer and close programs on Mac - AOL Help

    help.aol.com/articles/restart-the-computer-and...

    Note: Wait for 20 seconds, and then turn on the computer. 2. On the keyboard, hold down the Command and Option keys, and then tap the esc key. In the Force Quit Applications window, click any program other than Finder to highlight it, and then click Force Quit. 3.