I have gotten pretty consistent 630s every day. Especially during the boss area in VHAQs or SHAQ. I have been following many of these threads and it really does seem to be targeted. I have a rock solid connection and programs such as Wireshark show no dropped packets on my end. This is really one of my only gripes about this game at the moment and I really hope it get resolved.
Latest 630 was 10 minutes ago at time of writing this post.