HP Wireless DHCP Problem

[amvc]

Hi

 

I have a strange problem, which appears only to have started over the weekend. In short, DHCP requests over wireless are timing out in the majority of cases and so IP addresses are not being renewed.

 

The DHCP server is a Windows 2003 machine. I have installed Wireshark on this, as well as a few wireless clients. What I see is that DHCP DISCOVERS are always received by the DHCP server from the wireless cleints, but DHCP OFFERS are not always received back at the client. They appear to go missing.

 

I suspect a VLAN routing issue perhaps (especially as wired DHCP requests are always dealt with and sent/received correctly), but I can't see what.

 

The wireless module is a HP Wireless Edge XL Module, situated in Port H of a HP 5308xl switch. I have included the config of that switch below.

 

Any help much appreciated.

 

Andrew

 

-----

Startup configuration:

 

; J4819A Configuration Editor; Created on release #E.11.03

 

hostname "HP Procurve 5308xl"

snmp-server contact "ICT"

snmp-server location ""

web-management management-url ""

module 3 type J4878B

module 7 type J4907A

module 2 type J4878A

module 1 type J4878A

module 4 type J8988A

module 8 type J9001A

module 6 type J4907A

module 5 type J4821B

interface G16

speed-duplex 100-full

exit

interface F16

speed-duplex 100-full

exit

ip default-gateway

snmp-server community "public" Unrestricted

vlan 1

name "DEFAULT_VLAN"

untagged A4,B1-B3,C2-C4,E1-E4,F1-F16,G1-G16

ip address 255.255.252.0

tagged A1-A3,B4,C1,D1,HUP

no untagged HDP

ip igmp

exit

vlan 2100

name "VLAN2100"

tagged A1-A3,B4,C1,D1,HDP

exit

lldp auto-provision radio-ports auto-vlan 2100 auto

vlan 2

name "VLAN2"

tagged D1,F15,HUP

exit

vlan 3

name "VLAN3"

tagged D1,F15,HUP

exit

fault-finder bad-driver sensitivity high

fault-finder bad-transceiver sensitivity high

fault-finder bad-cable sensitivity high

fault-finder too-long-cable sensitivity high

fault-finder over-bandwidth sensitivity high

fault-finder broadcast-storm sensitivity high

fault-finder loss-of-link sensitivity high

fault-finder duplex-mismatch-HDx sensitivity high

fault-finder duplex-mismatch-FDx sensitivity high

; Encoded configuration data follows.

; Modifying this data makes the configuration unusable for restores.

wireless-services H config "02f0qlNYMpaC3nA4s8Q/ydhF5E1BR0lDADVhMzg"

wireless-services H config "0Yzg0MjMwOGU4YWNkZGQ5MmNjMWI4MGNkOTk0AA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAABAAAAAAAAAApwIHv///wAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"

wireless-services H config "QAAAAAAAAAAAAAA"

; End of configuration data.

password manager

password operator

Edited September 13, 2011 by amvc

[amvc]

Fixed it myself. An upgrade to the the 5308xl firmware did the trick. Can't say why though...