Duplicate packets with repeater

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I'm using two d-link 800-ap+ access points, one is in ap mode, the
other in repeater mode. The client on the repeater side is a winxp
system using a d-link dwl-520+. I'm seeing lots of duplicate packets
and retransmits coming from this client. I found an earlier posting
which dealt with the same problem and someone identified the repeater
as the problem, but did not offer any possible solutions. Does anyone
have any suggestions as to how I can stop or reduce the duplicate
packets? I've provided traffic and ping samples below.

Ping:

# ping 172.24.2.2
PING 172.24.2.2 (172.24.2.2): 56 data bytes
64 bytes from 172.24.2.2: icmp_seq=0 ttl=127 time=5.6 ms
64 bytes from 172.24.2.2: icmp_seq=0 ttl=127 time=9.1 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=0 ttl=127 time=13.7 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=1 ttl=127 time=9.8 ms
64 bytes from 172.24.2.2: icmp_seq=1 ttl=127 time=10.7 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=1 ttl=127 time=15.7 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=1 ttl=127 time=22.4 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=2 ttl=127 time=10.8 ms
64 bytes from 172.24.2.2: icmp_seq=2 ttl=127 time=11.3 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=2 ttl=127 time=15.4 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=2 ttl=127 time=21.1 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=3 ttl=127 time=9.3 ms
64 bytes from 172.24.2.2: icmp_seq=3 ttl=127 time=9.6 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=3 ttl=127 time=14.7 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=3 ttl=127 time=33.0 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=4 ttl=127 time=12.2 ms
64 bytes from 172.24.2.2: icmp_seq=4 ttl=127 time=16.4 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=4 ttl=127 time=17.3 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=4 ttl=127 time=18.0 ms (DUP!)
64 bytes from 172.24.2.2: icmp_seq=4 ttl=127 time=21.6 ms (DUP!)

--- 172.24.2.2 ping statistics ---
5 packets transmitted, 5 packets received, +15 duplicates, 0% packet
loss
round-trip min/avg/max = 5.6/14.8/33.0 ms

Traffic capture:

13:24:20.143689 IP (tos 0x0, ttl 127, id 48456, offset 0, flags [DF],
length: 45) 172.24.2.2.2544 > 207.46.106.105.1863: P [tcp sum ok]
5:10(5) ack 9 win 23994
13:24:20.214067 IP (tos 0x0, ttl 115, id 46238, offset 0, flags
[none], length: 48) 207.46.106.105.1863 > 172.24.2.2.2544: P [tcp sum
ok] 9:17(8) ack 10 win 17353
13:24:20.222183 IP (tos 0x0, ttl 127, id 48459, offset 0, flags [DF],
length: 40) 172.24.2.2.2544 > 207.46.106.105.1863: . [tcp sum ok]
10:10(0) ack 17 win 23986
13:24:20.225553 IP (tos 0x0, ttl 127, id 48460, offset 0, flags [DF],
length: 40) 172.24.2.2.2544 > 207.46.106.105.1863: . [tcp sum ok]
10:10(0) ack 17 win 23986
13:24:20.227471 IP (tos 0x0, ttl 127, id 48461, offset 0, flags [DF],
length: 40) 172.24.2.2.2544 > 207.46.106.105.1863: . [tcp sum ok]
10:10(0) ack 17 win 23986
13:24:20.235258 IP (tos 0x0, ttl 127, id 48462, offset 0, flags [DF],
length: 40) 172.24.2.2.2544 > 207.46.106.105.1863: . [tcp sum ok]
10:10(0) ack 17 win 23986

Any help you can offer is greatly appreciated.