What I've noticed is occasional DNS failures (can't resolve onemoreinthetolly.com) that persist for a span and are then resolved.
This happens on a fairly regular basis from my work machine (happened today for 2-3 hours for example) but I can still connect from my phone.
My work HTTP traffic is largely routed through a proxy in Holland for stupid reasons outside my control, god knows what happens on that box.
Could be caused by a combination of OMT's host, OMT's DNS config and servers, and my company's setup.