Here we go again. It's not even a month ago, when I last started a full search re-indexing.
Well it didn't turn out much better. In fact it was worse.
But yesterday I had the RAM of the server extended. And for the first time since we upgraded then we're no getting a specific "Unknown Search Error" in the event logs.
So this time I really i hope that it will fix the search issues.
Until then, if you use Google.com instead then do it like this:
You could also extend it and use it like:
Then you will still get all the same results.
I expect that the reindexing will 4-5 days to be completed and I'm sorry for the inconvenience.
Have a great day, Erik