diff --git a/config/prod.exs b/config/prod.exs
index 5e0f75d4..2ce803df 100644
--- a/config/prod.exs
+++ b/config/prod.exs
@@ -1,11 +1,15 @@
 import Config
 
-# Filter out harmless Oban shutdown messages during deployments
+# Filter out harmless Oban shutdown messages and repetitive SNMP MIB errors
 config :logger, :default_handler,
   filters: [
     drop_oban_shutdown: {
       &Towerops.LoggerFilters.drop_oban_shutdown/2,
       []
+    },
+    drop_snmp_mib_errors: {
+      &Towerops.LoggerFilters.drop_snmp_mib_errors/2,
+      []
     }
   ]
 
diff --git a/lib/towerops/logger_filters.ex b/lib/towerops/logger_filters.ex
index 47c0c015..b7e1732f 100644
--- a/lib/towerops/logger_filters.ex
+++ b/lib/towerops/logger_filters.ex
@@ -42,4 +42,25 @@ defmodule Towerops.LoggerFilters do
       String.contains?(msg, "EXIT") and
       String.contains?(msg, ":shutdown")
   end
+
+  @doc """
+  Drops repetitive SNMP MIB resolution errors from net-snmp library.
+
+  These errors occur when snmptranslate can't find vendor-specific MIB modules.
+  The errors are logged repeatedly during polling but don't affect functionality
+  since the system falls back to numeric OIDs.
+
+  Example messages filtered:
+  - "Cannot find module (TRISTAR): At line 1 in (none)"
+  - "Cannot find module (VENDOR-MIB): At line 1 in (none)"
+  """
+  def drop_snmp_mib_errors(log_event, _opts) do
+    if snmp_mib_error?(log_event), do: :stop, else: :ignore
+  end
+
+  defp snmp_mib_error?(%{msg: {:string, msg}}) when is_binary(msg) do
+    String.contains?(msg, "Cannot find module") and String.contains?(msg, "At line 1 in (none)")
+  end
+
+  defp snmp_mib_error?(_), do: false
 end