ERROR_IP_ADDRESS_CONFLICT1 - 611 (0x263)
There is an IP address conflict with another system on the network.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_IP_ADDRESS_CONFLICT1 error code, represented by the numeric value 611 or its hexadecimal equivalent 0x263, signifies that a network conflict has been detected due to an IP address overlap. This typically occurs when two or more systems on the same network segment are assigned the same IP address.
Error Details
This error is indicative of a situation where the network infrastructure cannot uniquely identify devices based on their IP addresses. Such conflicts can lead to communication issues, as data intended for one device may be mistakenly sent to another due to the overlap in addressing.
Usage Context
The ERROR_IP_ADDRESS_CONFLICT1 error code is commonly encountered during network configuration or when attempting to connect a new system to an existing network where IP address assignments are not properly managed. It can also occur if there are issues with DHCP (Dynamic Host Configuration Protocol) servers, which dynamically assign IP addresses to devices on the network.
Developer Interpretation
Developers should interpret this error as a signal that the current configuration of the network is invalid or requires adjustment. The presence of an IP address conflict can disrupt normal network operations and may necessitate manual intervention to resolve the issue by ensuring unique IP address assignments for all devices on the network.
Related Errors
ERROR_IP_ADDRESS_CONFLICT2(612): Indicates a similar but potentially more severe condition where multiple conflicts are detected.ERROR_DHCP_LEASE_CONFLICT(704): Occurs when a DHCP server detects that it has issued an IP address to two different clients.
FAQ
Q: What does the ERROR_IP_ADDRESS_CONFLICT1 error mean?
A: It indicates that there is an overlap in IP addresses on your network, leading to potential communication issues between devices.
Q: How can I resolve this issue?
A: Ensure that all devices on your network have unique IP addresses. You may need to manually configure static IP settings or adjust DHCP server configurations to prevent address conflicts.
Summary
The ERROR_IP_ADDRESS_CONFLICT1 error code is a generic indication of an IP address conflict within the network infrastructure. It requires attention from network administrators and developers to ensure that all devices are properly configured with unique IP addresses, thereby maintaining the integrity and functionality of the network.