pfSense

TFTP package info from config.xml :

        <package>
            <name>TFTP</name>
            <website/>
            <descr><![CDATA[Trivial File Transport Protocol is a very simple file transfer protocol. Often used with routers, voip phones and more.]]></descr>
            <category>Services</category>
            <pkginfolink/>
            <config_file>http://www.pfsense.com/packages/config/tftp2/tftp.xml</config_file>
            <depends_on_package_base_url>http://files.pfsense.org/packages/8/All/</depends_on_package_base_url>
            <version>2.0</version>
            <status>Stable</status>
            <required_version>2.0</required_version>
            <configurationfile>tftp.xml</configurationfile>
            <filter_rule_function>tftp_generate_rules</filter_rule_function>
        </package>
        <menu>
            <name>TFTP</name>
            <tooltiptext>Add or Remove files for TFTP.</tooltiptext>
            <section>Services</section>
            <configfile>tftp.xml</configfile>
            <url>tftp_files.php</url>
        </menu>
        <tab>
            <text>Files</text>
            <url>tftp_files.php</url>
        </tab>
        <service>
            <name>tftp</name>
            <executable>inetd</executable>
            <description><![CDATA[Trivial File Transport Protocol is a very simple file transfer protocol. Often used with routers, voip phones and more.]]></description>
        </service>
        <tftpd>
            <config>
                <tftpdinterface>lan</tftpdinterface>
            </config>
        </tftpd>

Anyone can confirm this issue ?

I've not spotted the trigger condition, but I can confirm I'm seeing the same condition
with '2.1-DEVELOPMENT (amd64) built on Sun May 13 02:42:10 EDT 2012'

I have to save the config to restart it, even a reboot didn't help.

I've found a workaround long time ago but I forgot to mention here.

- installed Cron package
- added line : "/usr/sbin/inetd -wW -R 0 -a 127.0.0.1 /var/etc/inetd.conf" 1 minute after resetting WAN connection.

This workaround reload tftpd and everything works fine since 6 months.

I've not already tested this issue with pfSense 2.1

In /etc/inc/filter.inc around like 1858, try changing the place where it does a kill -HUP on inetd with two commands that kill it with KILL and then restarts it.

It may be that HUP isn't enough to make inetd reattach in your case.