Facebook accounts are easily blocked.

Logging into multiple Facebook accounts from the same IP address can result in a ban. Facebook considers this suspicious behavior and may consider it a security risk, I recommend using a proxy to limit account bans.

LunaVexx said:

What I think is that if Facebook accounts are frequently banned, it should be closely related to our device IP. If one device IP logs in too many accounts, it is estimated that they will be banned. Other methods can also be used

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You're absolutely right

IP and device reputation play a major role in Facebook bans. Logging in too many accounts from one device or IP can trigger red flags. Using clean proxies, browser fingerprinting tools or antidetect browsers can help reduce the risk. It’s all about simulating real-user behavior as closely as possible

You’re right, Facebook often ties bans to device IPs. If many accounts log in from the same IP, it raises red flags and can lead to bans. Using methods like rotating IPs (via proxies or VPNs), changing device fingerprints, and varying login times helps avoid detection.

If you have too many accounts being scanned, it may be because your IP has been scanned when logging too many accounts.

Yes, Facebook tracks your IP and device.

You're right — IP and device associations play a huge role in account stability. Using unique device fingerprints, clean IPs, and maintaining consistent login patterns can really help reduce bans.

You're absolutely right that device fingerprinting and IP tracking play a huge role in Facebook account bans! Facebook definitely monitors unusual login patterns and multiple accounts from the same device/IP. For legitimate business use, stick to Facebook's official methods: use Business Manager to properly manage multiple ad accounts → go to "Business Settings" → "Accounts" → "Add" to legitimately access multiple accounts. This way Facebook knows it's authorized business activity. If you need team access, add users through Business Manager → "People" → "Add People" rather than sharing login credentials. Always check "Account Quality" in Ads Manager to monitor account health. Focus on building one strong, compliant account rather than managing multiple risky ones - it's more sustainable long-term.

Peter Padilla said:

You're spot on. Facebook is very sensitive to device fingerprints and IP history. Logging into multiple accounts from the same IP (especially mobile or datacenter proxies) often triggers bans. Use residential or mobile proxies, clean browser fingerprints via anti-detect tools, and avoid linking accounts. Warm up new accounts slowly—behavior matters more than just IP.

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good answer

LunaVexx said:

What I think is that if Facebook accounts are frequently banned, it should be closely related to our device IP. If one device IP logs in too many accounts, it is estimated that they will be banned. Other methods can also be used

Click to expand...

It is completely possible to log in to multiple accounts on 1 IP device, I think the cause does not come from that.

That's right, creating too many accounts with the same IP address will easily get locked because FB suspects you of improper behavior.

It is possible that the account lock is coming from your IP or mobile device.