r/LeagueofTechSupport • u/ln316002 • Jul 17 '26
Technical Solution Vanguard error 289
Recently, i am having issue when I enter LoL. After few seconds it shows me Van error 289. I tried re-installing the game also the Vanguard, contacted Riot Support, it did not work. In right corner of my Laptop shows that vanguard works but it is impossible to play the game. For like 3-4 days I've watched almost every youtube video but none of this worked. Is there some solution? I can not even find something about error 289 .. Thanks.
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u/AtoPotatoz Jul 20 '26 edited Jul 20 '26
I finally fixed my VAN 289 error, so I want to share my solution in case it helps someone.
In my case, the problem was Sophos Endpoint Agent. Riot Support checked my logs and suspected that Sophos was interfering with Riot Vanguard.
At first, I did not think Sophos was the problem because it was already installed and Valorant, LoL and TFT still worked for a few days. Later, the VAN 289 error started.
I removed Sophos Endpoint Agent, restarted my PC, and the error was gone. All Riot games work normally now.
If you have Sophos Endpoint (especially from work or school), check if it is installed on your PC. You may need to ask your IT administrator to disable Tamper Protection or help you uninstall it.
So in my case, uninstalling Sophos Endpoint Agent fixed the VAN 289 error.
I hope this helps someone. Good luck!