When playing Dota 2, the Internet turns off in particular, in particular in this game, for what reason can it turn off?

Question

Computer networks

When accepting a game or playing for 10-15 minutes, the ping starts to rise rapidly. In discord, this is especially noticeable, as well as a very poor connection to the Internet in the house.
This happens with a strange pattern. Let's say yesterday I didn’t have this at all. Today it happened 2 times. I didn’t use the phone as a modem. TTL packets also didn’t touch anything. There is a torrent. Antivirus is also ESET. I haven’t tried it yet. My router is TP-Link TD-8968. The power supply is set to maximum performance. This does not happen in other online games. I suspect that the same problem will be observed in Valve games in cs go and team fortes 2 .If there are solutions, please suggest)