nfe0 connection not as reliable; a few questions...

Updated current  { from Sept last year } to this week... and nfe0 now seems to require a reboot 
daily at least { no access to beyond-the-lan ... } 

Is there maybe some tunable (net.inet... ) related  or sysctl { kern.ipc... } similar, that
could be a cause?  New code of ifconfig or the network stack within the last seven
months or so? Usual fixes of MTU size to set? 

The coincidence of the daily network stack loss with the installkernel/world r298350 would
at first glance rule out hardware issues... Hadn't seen that type of network  issue before
{ I can connect to the gateway, but the modem  { comtrend } in bridge mode seems
to fail.  }.    I checked some of the net_at_freebsd.org list to no avail...   The modem had worked
fine for about two weeks previously... at least.

Apologies for wasting anyone's time; there are tests I could run with more machines on the
lan, but though to ask here first.   And did not think of those setups until after I had half-completed
this email...

Thanks.