@klockstone 

Hi,

Thanks for getting back to me.

The 10 wireless access points are spread around the property and are MAC bound to high numbered local IP addresses.  These are not included amongst the 40 or so guests that are likely using the system.  We have one smart TV cabled into the Ethernet that links the WAPs and the guests can have an assortment of smart phones, laptops, 
tablets, smart watches etc.  We've even known guests bring their Amazon Firestick with them.

As many as 5 times a day, the system becomes jammed ie totally unresponsive and this can only be cleared by turning the MR200 off and on again.  At other times internet access can be very slow.  FTP is now impossible, whereas a year ago it worked.

It would be helpful if the system just slowed down without jamming up.  The term 'Graceful Degradation' comes to mind.

We have a Raspberry Pi cabled into the system that calls up a page on a web site every 10 minutes. This enables us to monitor the router and shows us a number of things:

1. The Pi sometimes cannot get through and sometimes misses 3 or 4 updates.

2. Three's IP changes regularly.

Thanks,

Keith.