Without something useful like a traceroute when there's a problem, there's not much anyone here can tell you.
The problem could be on your end, Dreamhost's end, or anywhere between.
That one's easy. Just make sure you never connect to the internet again. If you must, then expect the occasional problem.
When did you submit your ticket? If it was 5 minutes ago, no big deal. If it was last year, then they're taking too long to reply.
They generally get back to you within 24 hours. I'd say if you're being this vague in your support requests, it won't help speed things up... and will probably just lead to a follow up requesting more info.
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