Valorant: Vanguard reportedly blocked a second-hand Ryzen 7 5800X3D on Kleinanzeigen

• According to the post, the player bought the part in late September through Kleinanzeigen, the German marketplace for used goods.
• The player says Riot support told them the CPU ID or serial number was already blacklisted because the previous owner had received a hardware ban on 12 August.

What happened

The claim comes from a Reddit post by the German player After-Cartoonist-196, who says they ran into problems with Valorant and Riot Games’ Vanguard anti-cheat after buying a used Ryzen 7 5800X3D. The story was later picked up in coverage of that post, with the core claim remaining that a second-hand component had already been tied to an earlier ban. The player says they bought the part in late September via Kleinanzeigen, a German marketplace for used hardware and other second-hand items.

According to the player, Riot support then explained that the CPU ID or serial number had already been flagged in Vanguard. The reason given was that the previous owner had received a hardware ban on 12 August for cheating in Valorant. In the available summary, that explanation is not quoted verbatim, but it is described as the essence of support’s response. As a result, the story still depends on the player’s account and on how the reporting summarized Riot’s reply.

The coverage of the case is not fully consistent about which component was affected. In one description it is a CPU, while in another it is a GPU or another hardware part. So while it is clear that the issue involves second-hand hardware and a prior ban, it is not certain which component Riot actually blocked. It is also unclear whether Riot only flagged the specific part or whether more hardware in the system was included in the block. The available information does suggest that the player did not receive a simple software fix after contacting support, and that the issue centered on the link between the used hardware and the previous owner’s ban.

Background

Vanguard is Riot Games’ anti-cheat system for Valorant and can use hardware-based measures against players caught cheating. In this case, the question is whether a second-hand part was still linked to a previous hardware ban from the former owner. That makes the report relevant for players who buy used PC components, because the claim is not about a new ban for the buyer’s own cheating, but about a part that was allegedly already associated with another account history.

The available information comes mainly from the player’s own description and from reporting on that Reddit post. Riot’s exact wording is not quoted in the available summary, so the technical details of the block are not fully confirmed. It also remains unclear whether the part was a CPU, GPU, or another component, since the reporting is internally inconsistent on that point. The core claim that does remain is that the player says they bought a used part on Kleinanzeigen, Vanguard flagged it afterward, and Riot support cited the earlier hardware ban from 12 August as the reason.

Because the case involves a second-hand purchase, it is also important that the available information does not prove the seller did anything wrong. The report only says that, according to the player, the part had previously been tied to a banned owner. The source base therefore remains limited to the Reddit post and later summaries of it, without independent confirmation from Riot in the available text. That means the technical cause, the exact hardware identification, and the scope of the block should all be described carefully.

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Sources

• Kotaku: report on the Reddit post by After-Cartoonist-196 and the alleged Vanguard block of second-hand hardware.