GOOD DAY
I bought 951ui and metal 2 shpn for my two offices. I configured them as dchp client because i have dhcp server running on my cisco router already. Since then we have been enjoying good wireless browsing but today i discovered that every system connected to metal 2 wifi were disconnected and if connected again it still keeps disconnected. I have checked the router settings and there is nothing changed from my initial settings. So kindly help me on possible solution to this problem.

thanks and regards,
Noaha.

Post your wireless configuration:
/interface wireless export

Read about connect and access lists and implement it.
http://wiki.mikrotik.com/wiki/Manual:Interface/Wireless