On-and-off, for the past several months, I have not been able to connect my Lenovo Yoga 2 Pro ultrabook to my Windows Server 2012 Essentials “home” server so I cannot use the server backups. I have had the Yoga 2 Pro for about 12 months and it was connected and working well with my WSE2012 server without any significant problems. Then, several months ago, because of some issues with the server, I was forced to rebuild the system drive. After doing so, I was not able to reconnect the Yoga 2 running Windows 8.1 Home Premium with the rebuilt server. During the final stage of the connection process, I would always receive an “unable to establish a trust relationship with the server” error (see attached file for complete error message). Even though I initially had similar problems with some other computers running both Win 8.1 “Pro” and “Home Premium”, I was eventually able to get them connected and working. But no matter what I tried, I could never get the Yoga 2 to connect.
The “date/time” on the Yoga 2 and the server are identical so that does not appear to be an issue.
The next step I took was to replace the system drive with a new one (250 Gb Samsung 840 EVO SSD) and migrate to the R2 version of WSE2012, hoping that would solve the problem. Unfortunately, it did not. I still could not connect, getting the same “trust relationship” error with the new server OS. My next step was to upgrade the Yoga 2 OS from Windows 8.1 “Home Premium” to “Pro” so that I would be able to join the server domain. Once again, no luck. No matter what I tried, I could not get the Yoga 2 with Win8.1 “Pro” to connect to the WSE2012R2 server. Same “trust” error. However, I was able to join the domain without any issues. It seems ridiculous that the Yoga 2 can become part of the server domain and active directory but still “not” be trusted to connect to the server. I have no problems accessing anything on the server from the Yoga 2 but, of course, I cannot perform any backups for the Yoga 2 which defeats the whole purpose of having a “home” server.
I just cannot believe that this problem exists and is so difficult to resolve and that I have not been able to find any useful information about this issue after many months of researching it and countless hours of searching the internet for a solution. So I decided to try Experts Exchange. I’m completely out of ideas. Any help would be greatly appreciated. Thank you.