RAS 1500 cannot be authenticated

Re-apply the service pack and make sure your settings are correct.

http://support.microsoft.com/?scid=kb;en-us;Q227747

http://www.tek-tips.com/gviewthread.cfm/lev2/5/lev3/34/pid/584/qid/77613

For WinXP, but may be worth trying as well:
http://www.jsifaq.com/SUBJ/tip4600/rh4633.htm

Please remove any embedded spaces from the above links when pasting it into your browser.

Please read this PDF from 3Com on setting up the RAS1500:

http://support.3com.com/infodeli/tools/remote/ras1500/s_ware1_5/sys_man2/management.pdf
(please remove any spaces)

Go to page 184 in the PDF for how to set up Windows authentication for connected users.

hope this helps

Error 619: The specified port is not connected. This issue occurs because the account you were logged on with at the time you joined the domain did not have administrator privileges on the Windows domain. Because of this, services that could easily compromise network security, such as RRAS, deny clients the ability to obtain access to the domain.

Some possibly helpful links:

Windows XP clients receive error 619 when connecting to a RRAS server:

http://www.jsifaq.com/SUBJ/tip4600/rh4633.htm

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http://www.cottagesoft.com/Win2000FAQ.htm

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Error 619 with DUN and Modem:

http://www.cbn.net.id/modem/error_619.html

http://www.cbn.net.id/FAQ-TS/faq-ts-rnaapp.html

REMOVE SPACES from the pasted URL.