871W with 2VLANs, VLAN 1 is native VLAN for cable connect. VLAN2 is for wireless and the wireless clients can associated to this VLAN2 and can reach Internet but some website cannot reach such as www.info.gove.hk and Windows Live Messenger also cannot login too. If same wireless client PC using cable connected to this 871W directly then all website can reach and Windows Live Messenger can login too. Any idea? Please help.
This type issue often has to due with fragmentation issues. Try adding "ip tcp adjust-mss 1452" to the BVI interface you have the wireless interface mapped to if you have the wireless in a bridged config or the dot11 interface if in a routed config.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
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