I'm sorry. I swear I looked for the "search this topic" function before posting, but I didn't find it. Now I understood how to search in the topic. I apologize again.
Anyway, does someone have AIR-AP2800-K9-ME-8-10-185-0.zip which is the suggested version on Cisco website (I don't know why an older release is suggested than the lastest) and could someone explain if it's more reliable than AIR-AP2800-K9-ME-8-10-190-0.zip? (this time I searched the forum for it and It isn't present)