Dear People

As a courtesy to anyone interested I have finally sovled this (I hope), this is 
what I did, this is on a FreeBSD pfSense firewall router.

Essentially the fix is to ping the static IP's first hop, if this is down then 
flick the WAN NIC state down and up, this restores 
the lost connection where the Motorola 5101 has stopped sending packets 
(presumably for some incompatibility reason)  The Motorola 
5101 has today been replaced with a 5100, the ISP tell me most commercial lines 
are running the 5100 as they say it is more router 
compatible than the newer 5101.  I'll advise if the 5100 exhibits the same 
behaviour(!) however if it does the following should 
address it within a minute.  If you are copying it be sure to copy it exactly 
as spaces in the wrong place stuff it up....etc!!

For both the lists and my record it is done by:

=> in /etc/crontab add
*/1 * * * * root /usr/bin/

=> from edit.php create / write into new file /usr/bin/

ping -c1 Insert_1st_Gateway_Hop_Here_commonly_Static_IP_a.b.c.1
if [ $? -eq 2 ]; then
        ifconfig em0 down
        ifconfig em0 up
        echo 'Gateway Down'
        echo 'Gateway Up'

=> from exec.php run chmod u+x /usr/bin/

=> from exec.php run ls -l /usr/bin/
and check there is an x in the file permissions (for executable)

It will have run when you see a log series of commands starting with
Sep 1 11:32:13 kernel: em0: link state changed to UP
Sep 1 11:32:11 kernel: em0: link state changed to DOWN

The only problem I see with this approach is that whenever the Internet is down 
for whatever reason the WAN interface is going to be 
disconnected and reconnected every minute, as well as filling the logs with 
this info, but that seems only of concern from the 
perspective of filling the log with rubbish.  I might tinker with it to send me 
an email to advise me when the code has also run .

Thank you again to the people who worked with me on this.

Kind regards
David Hingston 
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