Blackberry WiFi connectivity issues with some routers i.e OpenWRT
Got a Blackberry? Having trouble getting the POS to access servers over WiFi? Connects but can't ping the Blackberry from other hosts on the same wireless network?
The issue appears to be a buggy WMM mode on the Blackberry and/or access point chipset (Atheros or Broadcom).
On OpenWRT powered access points/routers this can be fixed by disabling WMM mode.
option wmm 0under config wifi-iface in /etc/config/wireless. Power cycle, and it will work!