Guild Wars 2

so basically how the explain it best is,
the voice that shouts “they got the keep” “they destroyed your treb” “your team is victorius” etc etc
he stops announcing after about 1 minute , all the other sounds keep working, skillsounds etc but the guy just stops announcing,
when that happens i also noticed that we get half the points that we should get or even some no points after killing some1 or taking a point etc
1st i thought it was me , so i repaired the client but the problem came back and when i explained it to a guildmate , he started paying attention en said he had the same problem but actually never realized it.
I found out the hard way in kylo map, got trebbed down and while i uselessly pay attention to the voice when he says “get down or incoming”
it has been like this for the past 3-4 days

any others who have the same problem?