Error 813 | Existing broadband connection detected

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/systems/routers/error-codes/error-813/

Last Updated

Feb 27, 2026

Summary

A broadband connection attempt was blocked because a connection is already established or configured as always-on.

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Router & Wi-Fi Error Codes: ISP Modems, DNS Failures, Authentication, and Drops

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What This Code Means

Error 813 generally indicates that the connection attempt cannot proceed because a broadband/PPPoE session is already active or the system believes it is. In many home setups, PPPoE is configured on the router, making PC-based dial attempts unnecessary and potentially conflicting.

Where Users Usually See This Code

PPPoE connections configured on Windows
Environments where the router handles PPPoE sessions

Why This Code Appears

Router already maintains the PPPoE session
A previous session is stuck/half-open
Multiple devices trying to dial with the same credentials

What Typically Happens Next

The connection attempt stops and the system remains in its current state

What This Code Is Not

It is not an incorrect password error
It is not a DNS resolver problem

Troubleshooting Checklist

□ Confirm whether PPPoE should be configured on the router rather than the PC
□ Restart router/modem to clear stale sessions
□ Ensure only one device is using the PPPoE credentials at a time if the ISP restricts sessions

Notes And Edge Cases

Some ISPs limit concurrent sessions; dialing from multiple devices can trigger disconnects or blocks.

Related Codes

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