Pull request 2640: 8348-improve-dhcpd-error-handling

Updates AdguardTeam#8348.

Squashed commit of the following:

commit efc0f41
Merge: 86fa744 313135d
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Apr 23 18:21:20 2026 +0300

    Merge branch 'master' into 8348-improve-dhcpd-error-handling

commit 86fa744
Author: Eugene Burkov <E.Burkov@AdGuard.COM>
Date:   Thu Apr 23 15:09:40 2026 +0300

    dhcpd: change log level

Author: EugeneOne1

CHANGELOG.md

@@ -24,8 +24,11 @@ NOTE: Add new changes BELOW THIS COMMENT.
 
 ### Fixed
 
+- Redundant validation warnings about DHCP when it's disabled ([#8348]).
+
 - Safe Browsing and Parental Control labels on the General Settings page not updating after changing the UI language.
 
+[#8348]: https://github.com/AdguardTeam/AdGuardHome/issues/8348
 [#7046]: https://github.com/AdguardTeam/AdGuardHome/issues/7046
 
 <!--

internal/dhcpd/dhcpd.go

@@ -176,7 +176,7 @@ func (s *server) setServers(
 			return false, false, fmt.Errorf("creating dhcpv4 srv: %w", err)
 		}
 
-		s.conf.Logger.WarnContext(ctx, "creating dhcpv4 server", slogutil.KeyError, err)
+		s.conf.Logger.DebugContext(ctx, "creating dhcpv4 server", slogutil.KeyError, err)
 	}
 
 	v6conf := conf.Conf6