When using the ONVIF application in version 1.8.2 we cannot set Multicast to 188.8.131.52 - will return with 239.*.*.* where the * are the hosts octet.
Sarix cameras version 1.8.2, when setting the multicast in the ONVIF application.
We interpret this as 239.*.*.* and fill the rest in with the octet from our host address.
There is no resolution at this time, this should be resolved in the next firmware release