Dear Carl, Indy John and Kurt,
AC folder is shared on main computer
I was going to try connecting using the IP addresses but have not yet done so because I was able to get them to connect at least yesterday by turning off AVG, windows firewall , all chrome extensions and reducing my modem / router security from high to medium. Don't know which ones actually helped . I was also able to access the website also after that .
I think the 8.3 build 110 is defective . When AC tech support tried to trouble shoot , they were able to connect using ip addresses but not by using the regular method which should not happen . further , when i re installed AC on the 2 problem computers, in spite of using " no this is not my main computer" option and installing it, when I opened AC it said " you dont have the SQL server and data base on this computer, cannot open AC "
which should not happen. Re directing the path thru AC utilities as they suggested led to the error message" file not found " . Eventually , after turning off all the above, when I opened AC it said " no databases on this computer , do you want to try another computer with the databases and when I answered yes, it finally connected . Dont know how long this will last.
appreciate all your help. Hopefully they can finally install version 10 now that they can access the credentialling website and my troubles might be over .

Bala