hello, my micros 3700 terminals don't communicate properly basically is a waiter uses a computer it won't let them use the other one and if they opened a check in one of the terminals and want to use the other terminal either it asks for manager approval or wont let them access their number also i had an issue with a closed check and i couldn't reopen it with my manager number from a different computer either i had to go back to the terminal where it was first opened.