D-Link Repeater dropping after 5 min

I have been having problems sucessfully setting up my D-Link 800AP+ in
Repeater mode. When I check the wireless status on my DI-714P+ router,
sometimes the repeater is connected and sometimes it is not. When it
does connect it is usually gone after about 5 minutes.

Here is an excerpt from the router log. I can't really make much sense
of this log.

WAN Type: Dynamic IP Address (v1.31)
Display time: Fri Jan 23 22:11:59 2004

*Friday January 23 21:37:07 2004 T665A8-- Wireless Station
00-0D-88-8F-0A-46 association
Friday January 23 21:37:48 2004 66738 Unrecognized access from
24.17.176.47:23974 to TCP port 17300
*Friday January 23 21:42:27 2004 T67223-- Wireless Station
00-0D-88-8F-0A-46 disassociation
*Friday January 23 21:52:42 2004 T68A29-- Wireless Station
00-0D-88-8F-0A-46 association
*Friday January 23 21:58:12 2004 T6970D-- Wireless Station
00-0D-88-8F-0A-46 disassociation

Also, I am having a problem with "Unrecognized access from *.*.*.* to
TCP port *. I'm not sure what this means, but since 9 a.m. I have
about 100 entries of these lines in my log. I have checked using
Sygate's quick scan and all my ports are "blocked" except "IDENT" and
"WEB", which show up as "closed". Do I need to find some way to
stealth these ports as well??

Lots of questions...any thoughts are appreciated!

-john smith