Please i though you could help me on the exchange 2010 error i get when i want to open exchange console. i migrated to exchange 2010 from 2007 then wanted to upgrade the 2010 to SP1 so that i can integrate it with OCS 2007 R2. the migration was successful but the upgrade caused the error. the error says " You cannot call a method on a null-valued expression. It was running the command 'Discover-ExchangeServer -UseWIA $true -SuppressError $true -CurrentVersion 'Version 14.1 (Build 218.15)''. " Also when i log on with a domain account it says " the computer does not have a trust relationship with the domain controller" OLAYEMI EFUNTOYE

solved the problem by removing it from the domain and rejoining it again ThanksOLAYEMI EFUNTOYE

Hi, Thanks for sharing. Best regards, Serena Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.