Blue Exclamation MArk on DHCP IPv4 scope

Question

Blue Exclamation MArk on DHCP IPv4 scope

Vince CKL 1

I have Windows 2019 Standard setup with DHCP scope. And was configured under failover configuration with relation to other server in event of main server is down.
Recently, I noticed from the Display Statistics inf of the DHCP scope showed IP leased is full 100% full. So the problem I see that the leased container has less than 10 hosts( laptop/PC) grabbed IP address. understand the blue exclamation mark indicated full leased with no spare IP.

I do not understand why the statistics info of the DHCP scope indicated full while leased container has less than 10 hosts. I tried to restart the DHCP services or refresh it but still got this problem.

Please advise me how to resolve this problem. Thanks.

AHRA 46 Reputation points

2023-07-11T19:45:17.36+00:00
The DHCP scope may have been deactivated. This is the most common reason for this problem. To check, open the DHCP Manager console and verify that the scope is activated.

There may be a problem with the DHCP lease database. This can happen if the database becomes corrupted or there is a conflict with another DHCP server. To check, open the DHCP Manager console and click the "View" menu. Then, select "View DHCP Database." If you see any errors in the database, you will need to repair it.

The DHCP scope may be too small.
Emmanuel Joseph-Mozo 0 Reputation points

2023-09-09T05:19:22.03+00:00

In addition to the first answer..I just deactivated the scope and then activated it again. Green check mark.. good to go.

1 answer

Your answer

AHRA 46 Reputation points

2023-07-11T19:45:17.36+00:00

The DHCP scope may have been deactivated. This is the most common reason for this problem. To check, open the DHCP Manager console and verify that the scope is activated.

There may be a problem with the DHCP lease database. This can happen if the database becomes corrupted or there is a conflict with another DHCP server. To check, open the DHCP Manager console and click the "View" menu. Then, select "View DHCP Database." If you see any errors in the database, you will need to repair it.

The DHCP scope may be too small.
Emmanuel Joseph-Mozo 0 Reputation points

2023-09-09T05:19:22.03+00:00

In addition to the first answer..I just deactivated the scope and then activated it again. Green check mark.. good to go.

Answer 1

Limitless Technology 39,926

Hello @Vince CKL

This may indicate that there is an error with the ability of the DHCP server to lease addresses (not always that "all are used", but "there are none available" instead). My recommendation is to check if the DHCP Scope has been deactivated for any reason. This is usually the most frequent problem, and just Activating the Scope will resolve it.

Hope this helps with your query,

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Blue Exclamation MArk on DHCP IPv4 scope

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