Name of Internet Service Provider (ISP)
Orange

Country of residence
France (île-de-france)

Reference number from your ISP, if you have raised this matter with them
I contacted them but they didn't give me any reference number (i think it's my phone's number that's used here)

When does the problem occur (e.g. only during specific times such as in the evenings?)
All the time but more frequent the evenings

Frequency of problem (e.g. every 2 minutes)
all the time, every 15s in the evenings and week end, every 5 min during a week day

Game content in which the issues occur (e.g. dungeons, trials, certain areas)
all content (world, dungeons, gold saucer and raids...)

IP address (optional)
i found where the problem lies thanks to "tracert" function.
it's here : ae-3-80.edge5.Frankfurt1.Level13.net [4.69.157.137]

More details :
I'm playing on PS4 (so vpn are quite annoying to use), and on odin server.

Thanks in advance for solving quickly this situation.