UPDATE 4/1: Comcast has denied that they are blocking Bovada.
The official Bovada Twitter account indicates that the problem has been resolved:
Original story follows
Multiple individuals in the United States are reporting problems with accessing Bovada – not simply the website, but the platform itself.
A common thread among those experiencing the issue appears to be that they utilize Comcast for their Internet service.
Several players confirm the issue is Comcast-specific (although not necessarily limited to Comcast) in this growing thread on TwoPlusTwo.
Bovada has acknowledged the issue but had offered little in the way of details as of this article: