Did you have an issue where you submitted a large amount of rejected shares?  You can get a temp ban if you did.  See if it connect with say the Eu1 or US1 servers just to see if its a problem.  Can also try Nano just to confirm if it is a problem with asia1 server / pool / or something else.  Lot of miners having troubles due to 4gb dag size and problems with miners as we approach it...even some 8gb cards are having problems because of issues in the mining software.  Most authors are right on it but Claymore is MIA and has been for a while.  Ive got it running on a couple of linux rigs but oddly even a couple of those have had to switch. 

Dont be afraid to try other miners...as miners you must be ready and willing to change.