I have been working on a solution for the age old nstreme disconnect problem and have finally found something workable. The new 6.33.3 and 6.33.5 wireless-cm2 packages already solve the problem 90%, thanks mikrotik, but we still have a few cpe's that disconnect every so often. The solution is to replace the default scanlist on cpe with the frequency being used by the AP and make sure there are no other frequencies in the list. Also, remove any wireless encryption although you dont have to but its better if you do. Add the cpe's the the access list on your AP (if you disable encryption) and your good to go. Now make a skype call from one of the cpe's and while speaking, manually disconnect the cpe from the registration list on the AP. The reconnection should take less than 100ms and in most cases less than 50ms. You will not notice any break in data transfer.