[calumma]

My wifi network is perfectly reliable thank you. The only software that I experience issues with is OmniFocus on the iPhone. I can move GB of data between different macs on my network without problem, yet a simple ToDo app on my phone causes the network to fail. As others have also reported, turning on Airplane mode on the phone and manually reconnecting wifi, enables sync to function.

nigelm go into settings and turn on airplane mode. Then manually reconnect to your wifi network, reopen OmniFocus and retry the sync. Let us know if this works.