This is a strange one. In 20 years of using EA, I've never experienced this.
In the middle of doing some development, suddenly EA refused to load, the next time I started it.
I was using an older build of 16.1 64 bit.
BUT, this happens in both EA 15.2 (32 bit) and EA 16.1 (64 bit). In both cases I'm stuck at the EA Splash screen.
So far I have tried:
1 - re-installing EA (V16.1 64 bit - same build as I already had)
2 - de-installing EA 16.1 completely, then re-installing EA 16.1 64 bit, build 1625 - most recent
3. as above, with re-starting the machine afterwards
4. Deleting all addin entries from the registry, so there is no eaAdins64 folder.
5. Cold-starting the machine.
I can see that it's getting as far as contacting the licence server, because the lease checkout time changes.
Actually, in the middle of writing this, the EA load completed!
Now I see that it WILL load, but only after a delay of almost exactly 3 minutes.
This is true for both 15.2(32) and 16.1(64), which given that these are totally different pieces of software, is strange.
Ah, but their common element is my EA licence server!
So I added a fixed, local key to the 15.2 EA, and released the floating key.
..and it still takes almost exactly 3 minutes to load, even a local, empty EAP file, and using a locally saved non-floating EA key.
This is 100% repeatable - EA loads sucessfully, on whatever repository I want, 32- or 64-bit versions, but only after a 3 minute delay.
Any ideas anyone?