I tried the workaround @Michal_Smolak mentioned earlier, using only standard letters and numbers for SSID and password…; still the mox (power wifi with 8Lan extension) is not showing any WiFi-Signal. It IS connected to the Omnia as shown via netboot-manager list. I´ve factory reset it several times, but still nothing. Weird. Why should it work for your Mox, then? Did you #out any other lines of the config? are you using only one of the two WiFi adapters of the Mox?
Thanks!
PS: the omnia is on TOS 5.3.4