Minecraft server list keeps resetting

i have no idea what keeps happening. everytime i log onto minecraft, most of the time my servers have reset to the "scanning for games on your local network" message. this has happened multiple times a day for the past week, and im getting really sick of putting in all my servers in about 3 times a day. here's an example below.
before, all my servers there.

after i log onto minecraft, or when i refresh.

i know this happens to everyone a few times, but it shouldn't be happening three or more times a day. ive tried deleting minecraft, and reinstalling, and it still keeps happening. does anyone know whats going on, or can someone help me figure this out?

 

Though I don't know how to fix it, I can assure you that there are multiple people looking for a solution to the same issue.
Here's just some suggestions:
-Reconnect to your WiFi
-Restart your router
-Restart your computer
-Reinstall Java

 

thank you so much, i renamed the file and all my server came back.

locking this now :)