FS25 Crossplay Connection Lost at 99% — Fix 2026

What happens with the 99% problem?

You or your friends get to 99% on the loading screen and then get kicked with "Connection to the game lost". This is one of the most common problems on FS25 servers — and it almost always has a fixable cause.

Cause 1: External mods disable crossplay

This is the most common cause. If external FTP mods are installed on the server, crossplay doesn't work — console players always get kicked at 99%.

Cause 2: DS-Lite internet (no real IPv4)

Many German internet connections (especially Telekom and Vodafone) use DS-Lite — meaning several households share a single IPv4 address. FS25 servers need a real IPv4 connection for crossplay.

Fix: Call your internet provider and request a real IPv4 address. With Vodafone and Telekom this is free of charge. Afterwards, switch your Fritzbox (router) to "IPv4 & IPv6".

Important: This problem is on the side of the player trying to connect — not the server. If only certain players have the problem, those players should check their internet connection.

Cause 3: Corrupted savegame

After updates or after certain mod conflicts, the savegame can get corrupted. This often shows up as the 99% crash — the server loads the savegame, fails while doing so and kicks everyone out.

Cause 4: Server not updated after a game update

After FS25 updates, the server software and the game client need to be on the same version. If the server is still running the old version, you get the connection error at 99%.

Fix: Restart the server in the web interface or explicitly update it to the new version. With some providers this happens automatically, with others you have to do it manually.

Still stuck at 99%?

If none of the causes applies or the fix doesn't help, the cause may be on the server side — for example a wrong configuration or outdated server software. In that case, contact your server provider and send them the server log, the time of the error and your latest changes (mods, settings, updates).