If you happen to have a DSL connection or any other type of connection that has a smaller then the standard 1500 MTU size for IP packets and use an Apple Airport for a firewall, you might have packet fragmentation which can cause all kinds of random issues with ST and other programs.
Some of the potential issues with fragmented packets would be any device that uses a local hub action like cameras, hues or other local to hub to cloud back to hub type connection. If a packet is dropped due to fragmentation, the whole round trip process can drop.
Apples solution is to hard code the MTU to the provider setting on all end use devices, since Apple doesn’t allow it to be set on their device.
This is not an ideal solution.
It may be possible to put your DSL modem into bridge mode which will pass on the MTU size to the airport and thus solve the problem.
If you want to find your MTU size you can use the following link:
This issue may not just be limited to Apple Airports but could be any router that doesn’t auto set MTU size.
Hopefully this will help some people who might be having those random issues that seem to be ST hub issues but are really network configuration issues.