diff --git a/.github/workflows/network-test.yaml b/.github/workflows/network-test.yaml
index aa53e8e73a9..27a2b1557fc 100644
--- a/.github/workflows/network-test.yaml
+++ b/.github/workflows/network-test.yaml
@@ -29,7 +29,8 @@ jobs:
         # Currently this is just a label and does not have any functional impact.
         peers:          [3]
         scaling_factor: [10, 50]
-        netem_loss:     [0, 1, 2, 3, 4, 5, 10, 20]
+        # Note: We only put here the configuration values we _expected to pass_.
+        netem_loss:     [0, 1, 2, 3]
     name: "Peers: ${{ matrix.peers }}, scaling: ${{ matrix.scaling_factor }}, loss: ${{ matrix.netem_loss }}"
     steps:
     - uses: actions/checkout@v4
@@ -61,6 +62,8 @@ jobs:
 
     - name: Setup containers for network testing
       run: |
+        set -exo pipefail
+
         cd demo
         ./prepare-devnet.sh
         docker compose up -d cardano-node
@@ -73,9 +76,10 @@ jobs:
           --node-socket devnet/node.socket \
           --cardano-signing-key devnet/credentials/faucet.sk)
 
-        echo $HYDRA_SCRIPTS_TX_ID >> .env
+        echo "HYDRA_SCRIPTS_TX_ID=$HYDRA_SCRIPTS_TX_ID" > .env
 
-        nix run .#cardano-cli query protocol-parameters \
+        nix run .#cardano-cli -- query protocol-parameters \
+          --testnet-magic 42 \
           --socket-path devnet/node.socket  \
           --out-file /dev/stdout \
           | jq ".txFeeFixed = 0 | .txFeePerByte = 0 | .executionUnitPrices.priceMemory = 0 | .executionUnitPrices.priceSteps = 0" \
@@ -103,14 +107,6 @@ jobs:
         limit-access-to-actor: true
 
     - name: Run pumba and the benchmarks
-      # Note: We're going to allow everything to fail. In the job on GitHub,
-      # we will be able to see which ones _did_, in fact, fail. Originally,
-      # we were keeping track of our expectations with 'include' and
-      # 'exclude' directives here, but I think it's best to leave those out,
-      # as some of the tests (say 5%) fail, and overall the conditions of
-      # failure depend on the scaling factor, the peers, etc, and it becomes
-      # too complicated to track here.
-      continue-on-error: true
       run: |
         # Extract inputs with defaults for non-workflow_dispatch events
         percent="${{ matrix.netem_loss }}"