Installing mercedes DAS 01/08 onwards will now give a cal 503 error when it attempts to connect with the multiplexer. I am pleased to say I have solved this problem. Any previous customers of jcrecordings.com are welcome to the fix free of charge, there will be a small charge for any new customers .
The fix will be included in my new guide that shows the installation of DAS and Wisnet standalone 02/08 onto the same computer. Remember these guides include all the tools you require for a successful install.

Please if you have any other DAS / WIS errors that need solving just drop me an email from the website

John Coupland