My manager for the past two years, who also promoted me to deputy manager a year ago, has suddenly stopped communicating with me since the last time I took a holiday. I tried to organize catch-ups, requested 1-on-1s and sent multiple update e-mails but all was ignored for the past three months. The only times he briefly talked to me was in department-wide remote meetings.
Note that his office is in a different country too, so we have very few ways to communicate. What worried me is that he didn't even reply to quite urgent matters.
The only other line of communication is another senior manager with whom we all work cross-functionally, and I get to speak with this latter one much more often.
I have read elsewhere that this kind of behavior may signal upcoming redundancies or reorganizations; however, I have been seen as the top performer and the company and team are both doing very well. This also makes me fear about some kind of unknown underground politics.
I have been trying very very hard to communicate, send e-mails, phone, distribute team- and company-wide communications - but I literally have heard no feedback from my manager for all these months.
What can I do?