If that's in the router log it has nothing at all to do with your PC. LCP is used to set up higher layer network connections between your machine or router and the ISP's gateway. Most often means the ISP is having a problem.
Galaxy Note 8 vs iPhone X
Awful clip art from 1994 is being tweeted every hour by a bot
iPhone X vs Samsung Galaxy Note 8
Les meilleurs navigateurs internet 2017