Our customer using this ISP.
There are many times in midnight disconnect issue. the customer tried contact Movistar for check the issue. Moviestar answered it's not our problem.
So I checked MTR log from our service area to user side. there is packetloss in Moviestar side. can you check it please?
MTR don't measure in general any real packet lost. MTR use tracert/ping to check latency and other stuff. Any packet lost in MTR is, almost always, only IGMP traffic prioritization/discrimination, so don't have any effect in real traffic.
Anyway, your capture can not be seen yet, I suggest you put it in an external service and put here your link, or copy/paste MTR output.
Your destination, 188.8.131.52 is a intermediate node anyway.
Hop nº 10 give you about 5% loss, but if you look at hop 12, you have only a 1%. Real Packet lost, like latency, is accumulative. So if nº 10 have a real 5% loss, them, in next hops you should have at least a 5% of packet loss. Its pretty normal for intermediate nodes to prioritize IGMP traffic. Sometimes you can see even a 100% "packet lost" in some nodes, but in general, is not truth.