I cant compared the two because i never used or tested the wa850,but iwanna share my observation in wa855re.i installed it six month ago,the operation mode is ap to ap,connected via signal strenght,at first mo. It works perfectly but month passing by,AP rejected connection,it needs to power recycle to work it again, that is why i changed the connection, i cable it utp connection,changed operation mode to AP, i hope these settings will not reject/kick the other incoming connection thank you
