Factorio Forums

So, if i start a multiplayer session, i could join it and play forever but at the same time, my browser doesnt find any page and even steam shows a error if i want to look into the store.
If i quit the multiplayer session and want to browse public games i get:
Download failed (status code 520): failed to parse JSON response: Unexpected character (C) at ?:1

To be able to use my browser or search for public games again i have to reboot my router.

What informations could i provide to find a solution? Cause i have no idea.
(Edit: latest game version)

After diggin in...everytime i join a multiplayer game the DoS protection my router has blacklists my ip ... when i joined the game after catching up i could remove my ip from blacklist and it doesnt blacklist me again ... no idea what factorio does in special and no idea what changed within the last patches... (i played some time ago with the 17.x beta and didnt run into that problem)