diff --git a/.github/workflows/ci-test.yaml b/.github/workflows/ci-test.yaml
index 7eca4ed5a1..db309df13c 100644
--- a/.github/workflows/ci-test.yaml
+++ b/.github/workflows/ci-test.yaml
@@ -348,7 +348,7 @@ jobs:
 
       - name: 'testnet: Wait for node socket'
         run: |
-          while [ ! -e /tmp/oasis-net-runner-sdk-rt/net-runner/network/client-0/internal.sock ]; do
+          while [[ ! -e /tmp/oasis-net-runner-sdk-rt/net-runner/network/client-0/internal.sock && ! -e /tmp/cfg_ready ]]; do
             sleep 1
           done
 
@@ -370,6 +370,9 @@ jobs:
           name: e2e-ts-web-rt-logs
           path: |
             /tmp/oasis-net-runner-sdk-rt/**/*.log
+            /tmp/oasis-net-runner-sdk-rt/**/*.json
+            /tmp/genesis.json
+            /tmp/fixture.json
 
   e2e-rt:
     # NOTE: This name appears in GitHub's Checks API.
diff --git a/client-sdk/ts-web/rt/playground/sample-run-network.sh b/client-sdk/ts-web/rt/playground/sample-run-network.sh
index a817921a67..3c782190f3 100755
--- a/client-sdk/ts-web/rt/playground/sample-run-network.sh
+++ b/client-sdk/ts-web/rt/playground/sample-run-network.sh
@@ -4,9 +4,10 @@ TESTS_DIR=../../../../tests
 . "$TESTS_DIR/consts.sh"
 . "$TESTS_DIR/paths.sh"
 
-mkdir -p /tmp/oasis-net-runner-sdk-rt
+WORKDIR=/tmp/oasis-net-runner-sdk-rt
+mkdir -p "$WORKDIR"
 
-FIXTURE_FILE="/tmp/oasis-net-runner-sdk-rt/fixture.json"
+FIXTURE_FILE="$WORKDIR/fixture.json"
 
 "$TEST_NET_RUNNER" \
     dump-fixture \
@@ -21,7 +22,8 @@ FIXTURE_FILE="/tmp/oasis-net-runner-sdk-rt/fixture.json"
     --fixture.default.halt_epoch 100000 \
     --fixture.default.runtime.version 0.1.0 \
     --fixture.default.runtime.version 0.1.0 \
-    --fixture.default.staking_genesis ./staking.json >"$FIXTURE_FILE"
+    --fixture.default.staking_genesis ./staking.json >"$FIXTURE_FILE" \
+    --fixture.default.deterministic_entities
 
 # Use mock SGX.
 jq '
@@ -38,9 +40,46 @@ jq '
 ' "$FIXTURE_FILE" >"$FIXTURE_FILE.tmp"
 mv "$FIXTURE_FILE.tmp" "$FIXTURE_FILE"
 
+# Run test runner to generate genesis document.
 "$TEST_NET_RUNNER" \
     --fixture.file "$FIXTURE_FILE" \
-    --basedir /tmp/oasis-net-runner-sdk-rt \
+    --basedir "$WORKDIR" \
+    --basedir.no_temp_dir &
+RUNNER_PID=$!
+
+# Below is a workaround for there being no way to change the default max tx size which
+# prevents the compute nodes from registering.
+#
+# Wait for genesis file to be created so we can patch it.
+GENESIS_FILE="$WORKDIR/net-runner/network/genesis.json"
+OUTPUT_GENESIS_FILE=/tmp/genesis.json
+while [ ! -e "$GENESIS_FILE" ]; do
+  sleep 1
+done
+# Stop the runner.
+kill -9 $RUNNER_PID
+# Patch the genesis file.
+jq '
+  .consensus.params.max_tx_size = 131072 |
+  .consensus.params.max_block_size = 4194304
+' "$GENESIS_FILE" >"$OUTPUT_GENESIS_FILE"
+# Update the fixture to use the patched genesis.
+mv "$FIXTURE_FILE" /tmp/fixture.json
+jq '
+  .network.genesis_file = "'$OUTPUT_GENESIS_FILE'" |
+  .network.restore_identities = true |
+  .entities[1].Restore = true
+' /tmp/fixture.json > "$FIXTURE_FILE"
+# Reset state.
+rm -rf "$WORKDIR/net-runner/network/*/{consensus,runtime,persistent-store.badger.db}"
+rm -rf "$WORKDIR/net-runner/network/*/internal.sock"
+# Signal that we can continue.
+touch /tmp/cfg_ready
+
+# Run the test runner again.
+"$TEST_NET_RUNNER" \
+    --fixture.file "$FIXTURE_FILE" \
+    --basedir "$WORKDIR" \
     --basedir.no_temp_dir \
     --log.format json \
     --log.level debug