Why ‘Play Sound’ alert doesn’t work in my browser?

Why ‘Play Sound’ alert doesn’t work in my browser?

Q: I can hear sound alert file playback, and can hear sound alert when monitoring service executes it. However, i can’t hear sound alert when using Web interface. Why?

A: The most probable cause is Flash Player (which web interface use for playing mp3 sounds for ‘Play Sound’ alert) that blocks any activity on some ports because of the security issues (these ports are reserved for some protocol). The following lists show which ports are blocked in Flash Player:

HTTP: 20 (ftp data), 21 (ftp control)

HTTP and FTP: 1 (tcpmux), 7 (echo), 9 (discard), 11 (systat), 13 (daytime), 15 (netstat), 17 (qotd), 19 (chargen), 22 (ssh), 23 (telnet), 25 (smtp), 37 (time), 42 (name), 43 (nicname), 53 (domain), 77 (priv-rjs), 79 (finger), 87 (ttylink), 95 (supdup), 101 (hostriame), 102 (iso-tsap), 103 (gppitnp), 104 (acr-nema), 109 (pop2), 110 (pop3), 111 (sunrpc), 113 (auth), 115 (sftp), 117 (uucp-path), 119 (nntp), 123 (ntp), 135 (loc-srv / epmap), 139 (netbios), 143 (imap2), 179 (bgp), 389 (ldap), 465 (smtp+ssl), 512 (print / exec), 513 (login), 514 (shell), 515 (printer), 526 (tempo), 530 (courier), 531 (chat), 532 (netnews), 540 (uucp), 556 (remotefs), 563 (nntp+ssl), 587 (smtp), 601 (syslog), 636 (ldap+ssl), 993 (ldap+ssl), 995 (pop3+ssl), 2049 (nfs), 4045 (lockd), 6000 (x11)

If you use one of these ports for IPNetwork Monitor web interface, please refer to Help topic on how to change a web interface port.

This problem doesn’t appear if you use default port (8084) for IPNetwork Monitor web interface.

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Frequently Asked Questions

Check out our Knowledge Base where we answer questions regarding various topics.

Why can a Play Sound alert work in the service but not in the web interface?

The web interface uses Flash Player for MP3 playback, and Flash can block activity on reserved or restricted ports.

Which web interface port avoids this problem by default?

The default IPNetwork Monitor web interface port, 8084, is not one of the Flash-blocked ports listed in the troubleshooting notes.

What should I do if the web interface uses a blocked port?

Change the IPNetwork Monitor web interface port in the Web Interface settings so browser-based sound playback does not use a Flash-restricted port.