On the evening of September 5, a new large-scale wave of unexpected console bans apparently began hitting the Nintendo Switch 2. Many players reported on community platforms such as Reddit and Xiaohongshu that their consoles suddenly had access to Nintendo’s online services restricted, with error code 2124-4508 appearing. What’s notable is that some players who claimed to only play legitimate games and had never used any modified accessories or unofficial devices were also affected, sparking lively community discussion. However, Nintendo has still not provided an official explanation for the specific cause.
2124-4508 A new wave of device bans has been spreading since September 5th.
Starting from the evening of September 5, players began posting on social media platforms that their Switch 2 consoles had suddenly been banned, preventing them from accessing Nintendo’s online services. A Reddit player posted on September 5 stating that their console was suddenly restricted from online services that day, but emphasized that they had never modded their console or games. They only owned 3 physical games, two of which were purchased as new from Carrefour and a local game store respectively, and they hadn’t even played online games in the past month. The player has contacted Nintendo Europe customer service for a resolution, but has not yet received a specific response and can only wait for an official reply.
Nintendo Switch 2 console was banned for no reason
byu/KhronosIX inNintendoSwitchHelp
XiaohongshuOn X as well, multiple players have posted reports of Switch 2 consoles being banned. One netizen said: “I was just playing when suddenly I got banned. I normally buy legitimate games and have never touched any piracy, and the console is brand new and genuine.” Looking at these cases, the affected users span markets across Europe, America, and Asia—not just isolated incidents in one region—suggesting the scale of this wave of bans may be far larger than previously imagined.
My Switch 2 test has been banned, after using the mig switch with perfectly legal dumps of my own cartridges, so it would seem that Nintendo can detect something
Similar reports on reddit are starting to come in.https://t.co/nbPMlRWSaPhttps://t.co/3eq6dkbFMi
I strongly… pic.twitter.com/btzjQYJzE4— SwitchTools (@SwitchTools) June 16, 2025
MIG Switch flash cart becomes the target
Regarding the reason for this wave of console bans, many netizens are pointing the finger at the MIG Switch flash cart. This device looks almost identical to a regular Switch game cartridge and can read backed-up physical game data through the hardware. If the Switch 2 detects unauthorized devices or abnormal game data, it may trigger a console ban.
In fact, this isn’t the first time something similar has happened with the Switch 2. Back in June 2025, we reported on the first wave of console bans, when a large number of players using MIG Switch reported their consoles being blocked. Nintendo has taken a hardline stance against flash carts like the MIG Switch — even though many users claimed they were only using them to run backups of games they had legally purchased, Switch 2 consoles that inserted a MIG Switch could still trigger a permanent online functionality ban. Nintendo views this as a crucial line of defense against piracy, and since the MIG Switch works by mimicking the way legitimate cartridges are read, it makes it difficult for the console to distinguish whether a user is running a legal backup or pirated games.
What features will a banned host lose?
According to IGN’s report, a banned Switch 2 console displaying error code 2124-4508 will be unable to use the following features: downloading and playing any digital games or Game-Key cards, accessing system updates or game updates, engaging in online multiplayer, using GameChat communication features, and any Nintendo Switch Online services, including the subscription-based retro game catalog. In short, once a console is banned, all features that require an internet connection immediately become unusable, and the console’s overall value is nearly cut in half.
This ban appears to be permanent and cannot be lifted by restoring settings or switching accounts; it essentially completely “bricks” the console’s network functions. In other words, once a console is banned, the entire digital game library becomes useless, which is especially severe for players who rely primarily on digital downloads as their main purchase method.
Second-hand Switch 2 buyers are also becoming victims.
More concerning is that this wave of bans has now spread to the second-hand market. A consumer purchased a used Switch 2, and upon completing the setup at home, immediately encountered error code 2124-4508. Since the console’s previous owner may have been banned for using a MIG Switch, the innocent second-hand buyer ended up as the victim. Although the consumer was able to return the device without issue, this case highlights the pitfalls in the used Switch 2 market.
As the number of banned consoles grows, these devices are likely to end up on eBay or in second-hand retail stores, becoming traps for unsuspecting consumers. It’s recommended that when buying a used Switch 2, you should ask the seller to provide proof that the console can still use online features normally, or obtain a return guarantee, to avoid buying a “brick” that can’t connect to the internet.
Grounds for account bans under Nintendo’s User Agreement
According to the explicit terms in Nintendo’s Switch 2 User Agreement, users may not bypass, modify, or undermine the protection mechanisms of the console and software, nor may they use unauthorized hardware or software. The agreement also states that if users violate these restrictions, or if Nintendo determines or reasonably suspects that users have engaged in such violations, the company may take technical measures to restrict users’ access to or use of some or all functions of the console and software.
The key to this clause lies in the phrase “reasonable suspicion.” Even if Nintendo lacks conclusive evidence, as long as it believes a user is suspected of violating the rules, it has the right to block them. This also explains why some players who claim to play only legitimate copies were affected as well—possibly because Nintendo’s anti-piracy mechanism produced a false positive during the detection process.
Conclusion
As of now, Nintendo has not publicly explained the specific reasons behind the wave of console ban reports that began on September 5. Therefore, whether there are false positives and whether it is related to devices such as the MIG Switch still awaits further official confirmation. For Switch 2 players, if you’re planning to buy a used console in the near future, be sure to check on the spot that the console’s online functions are working properly. As for players using unofficial accessories, this wave of bans can be described as a rude awakening. We will continue to follow Nintendo’s official response.
Source: KOCPC Chinese