Problems with Hikvision DVR and EPH Heating controller

I had a recent domestic install at a commercial clients residence go sideways as the Route10 blocked the Hikvision DVR remote view service and the clients EPH heating controller remote control service.

Both of these devices originate from within the network (sending data to internet facing servers) so just wondering has anyone else come across this before and if so how did they mitigate it?

Once the ISPs original router was connected up again these services returned to normal.

Anyone?