If you are currently experiencing an Error On Post issue when trying to launch Escape From Tarkov, you are not alone. Many users are encountering problems with the Error On Post issue because of a recent update and thousands of players trying to log on simultaneously. Because of this, there is not much you can do to fix the error beyond waiting for the servers to calm down. In short, the servers are overloaded, as confirmed by a moderator on the Escape From Tarkov forum.
To recap, the main thing you need to do to fix the Error On Post issue is to wait for the servers to calm down. But if you still encounter the error even after waiting, we recommend trying a few troubleshooting steps to help fix the Error On Post issue. The first fix we recommend trying is restarting the game, then restarting your PC if restarting the game doesn't work.
After restarting your PC, we recommend trying to restart your router by pulling the wires out of the back for 30 seconds. When 30 seconds have passed, plug the wires back into your router and see if you can launch Escape From Tarkov.
How to check if Escape From Tarkov is down
If you want to check if the Escape From Tarkov servers is down, we recommend checking either Down Detector or the official Twitter for the game. Both sources can help you make an informed decision whether or not the servers are experiencing server issues.
for more on Escape From Tarkov, we at Pro Game Guides have you covered with guides like Best Loadouts in Escape from Tarkov and Escape From Tarkov: How to Breach Doors.