Hi, I have 2 servers, on my adittional Poller server the UNDP stop polling or poll with delay, this behavior begin at afternoon or evening but always it fix itself during the early morning, besides I have problems to launch Universal Device Poller application on my additional server, I can not open it, I get and error: "universal device poller stopped working! could you help me with this issue? I am running 12.1 NPM and all days the server run database maintenance automatically at 02:15am. My main Poller engine is ok.