The only solution I found for the taking over 5 minutes to intialize Claymore. Is reinstall os and not 'upgrade' to 1803. Or Reduce the number of card in rig to under 5 sometimes 6. There is something that happened with 1803 that causes claymore initializing process to take much longer. To the point where if you have anything past 5 or 6 cards it times out at a hard coded 5 min. Hope Claymore fixes this problem soon, if he can. It might be a problem in the OS. I've been wondering if I was the only one having this problem.