[2.0.73] Multiplayer game list fails to load, shows JSON parsing error 520 instead

Anything that prevents you from playing the game properly. Do you have issues playing for the game, downloading it or successfully running it on your computer? Let us know here.
ReTrooper
Manual Inserter
Manual Inserter
Posts: 1
Joined: Fri Feb 13, 2026 1:52 pm
Contact:

[2.0.73] Multiplayer game list fails to load, shows JSON parsing error 520 instead

Post by ReTrooper »

Since about two days ago (Feb 11th) the list of MP games fails to load. This never occured earlier and I could join MP games the days before without issues.

Now I suddenly get the following message instead:

Code: Select all

Download failed (status code 520): failed to parse JSON response: Unexpected character (s) at ?:1
My OS is pretty old (Windows 7) and I suspect that it might be at least partially responsible for the issue, though I (should) have all available updates installed.

It is not purely my system causing the connection issue, since I am able to read the server list JSON in my browser (at multiplayer.factorio.com).

I attached the log file and a screenshot of the error message.

There are several suggestions for this (or a very similar) issue in this thread:

[Windows 7] Error trying login in game "InitializeSecurityContext failed: SEC_E_ILLEGAL_MESSAGE"

I have tried them all, but to no avail. My OS was up to date before anyways.

Via M45-Science: Factorio Server Browser I was able to figure out an address of a server and could successfully connect to it via direct connection in factorio. Hope this info helps to isolate the problem.
Attachments
factorio-current.log
(8.12 KiB) Downloaded 9 times
520.png
520.png (33.06 KiB) Viewed 133 times
Post Reply

Return to “Technical Help”