Ive no packet loss on hop 1 and 2, it start from hop 3
If you can save proof of which hop fails, such as with a traceroute which
consistently shows a particular hop, then the ISP can use that to update and/or repair. One problem though is that only the higher level techs tend to have the proper equipment to deal with that (often managers of the area). Getting their attention and getting an individual route hop fixed can be a bit of a problem.
Even on the same route filters are used for parts of bandwidth and different customers might be using a different band such that one band works, but another has issues (different bands are subject to different noise). Sometimes the filter itself goes bad. Sometimes you must provide the information and really push for a fix. Traceroute with time of occurrence, showing issues at multiple times, is pretty good evidence if you can get it to the right person.