Sega still has Dreamcast support

I am having problems connecting online.

The quickest way to check there is no technical problem with the Dreamcast is to insert a mobile phone number as the ISP dial up number.

When the Dreamcast tries to connect the mobile should ring.

If it does the console is working correctly and you should contact your ISP for assistance.

If the mobile does not ring: The modem cable may be faulty:

To rule this out try another 2-wired modem cable.
The modem adaptor (commonly known as a US to UK adaptor), which allows the modem cable to connect to the telephone wall socket, is faulty:

If possible try another adaptor.
If after trying both a new cable and adaptor you still cannot connect the console may need to be repaired.

As a rule, Sega of America does not offer hints or tips for Sega games.

If you are stuck at a certain point in a level, or are looking for a guides for improving your skill, we suggest you check out one of the following websites!

General questions about Sega games: Our forums, of course!
Hints and tips guidebooks: Bradygames.com
Hints and tips for a wide variety of games: Gamefaqs.com

If you can't find what you're looking for on one of these two sites, please remember: gooogle is your friend