As I raid a lot with Teamspeak I know when its me having a problem with my computer or connection, or if the server lags out.
Since 5.0 we get massive lag spikes in hitherto unknown frequency. While earlier we had maybe one lag spike in one raid, by now we have 4-5 lag spikes in every raid. I am hoping thats a sign of a more healthy population, but the frequency of the lag spikes is unbearable in endgame raids, especially T5 and T6.
Please tell me that you are at least investigating this.