Airplay not working - was INTERMITTENT,

Hi, Im going to just throw this out there, as I am having same issue.
Airplay starts working fine, and then after some random period of time it stops working.

On hearsay I am presuming there are people out there without airplay issue?
Which would appear to indicate the problem is in some other indifference.
So lets see if we can figure out what the root cause is?

Here are my parameters.

  • Hardware = RasPi-2
  • Using Ethernet and static IP address
  • OSMC latest update, kodi 15.2.
  • IPad2 version 8.0.2 with static IP address
  • Router Service Provide supplied Huawei HG533 firmware v1.20t

First of all, I confirm the router has a fault with dhcp daemon I have complained to the service provider about this, hence why i have set all devices to static IP.
So I don’t care if they fix dhcp issue or not, but I am starting to wonder if there is another networking fault with the supplied router.

I did disable the firewall, incase it was filtering Bonjour broadcasts, but not got any further on my diagnosis yet, but if other people do not have issues then it has to be something I have in common with the people who are having the issue. Anyone care to figure it out with me?
I don’t want to invest too much time on it if it turns out to be a software/code issue, but at the moment there are some hints to suggest its the apple device or network related. However, a reboot of OSMC will permit the connection to work again for a short while, so is the issue really with airplay service?