I finally got Office 2016 Preview installed.
Clean install, Build 10041. Same issues, could not install. I disabled LAN and connected WiFi to my Windows Phone's shared mobile connection. Got the same error about not being connected when the installation showed 53%, enabled LAN again and finally installation finished successfully.
I must be the only one on this Forum who'se got it working AND ACTIVATED -- I got direct link when it first appeared (since gone - Ms took it down after a few hours).
Mine was already activated (although clearly Office 2016 is says Office 2013 in the activation). I neither have office 2013 nor a subscription for Office 365. I don't have an MSDN subscription either.
I rather like it -- better choice of themes --dark grey is fine for me. Office 2010 works concurrently with it --note if you have BOTH installed and you use OUTLOOK it uses the SAME outlook file and settings as Office 2010 so you don't lose any emails / address books or individual emails. You can use either outlook 2016 or outlook 2010 but not at the same time (outlook file) but things like EXCEL work in both versions at the same time.
Note I installed the 64 Bit version and selected the PRO version at install not the Small business edition.
Visio / Project don't activate but the rest of mine are fine.
screenshot enc -- it's clearly office 2016 even though the activation says Office 2013 !!!!!
Excel screenshot added too
I had the Office 2016 preview working without issues until today. Now suddenly all Office apps show this:
I did follow the link posted by Neowin and found an Office for Home that might not require an Office 365 subscription; I haven't a clue since I didn't click on it.
They also have the Word, Excel and Powerpoint for Windows 10 in the store for Download. Now I downloaded them 2 builds ago and the worked in the last build and not in the newest build 10049 but a few of the modern apps don't work in the build. I believe the leaked build 10051 the modern apps will work better. Now Word, Excel and PP may work after a clean install to Build 10049. I've been upgrading build after build and didn't do a clean ISO install since the first install.
im installing it now. i plan to use the 2016 office preview for school so i will actively use it.
I also ran into an activation issue.. i have gotten past the whole needing a subscription thing and an activated