Your receiver (I assume it’s 39602 you’re having trouble with) looks fine at the moment.
There have been no server side changes recently, so it’s probably hardware problems on your side, perhaps temperature or RF noise related.
I looked at some of the historical logs and your receiver has been flapping in and out of unstable for at least a couple of months. It’s got gradually more frequent over the last couple of weeks. Might be hardware on its way out.