diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bbdc3a4c..e63dd225 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
         os: [ubuntu-22.04, ubuntu-24.04]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Download RtBrick libdict
       shell: bash
@@ -62,7 +62,7 @@ jobs:
       run: cpack -G DEB
 
     - name: Upload Build Artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: bngblaster-${{matrix.os}}
         path: ${{ github.workspace }}/build/*.deb
@@ -80,7 +80,7 @@ jobs:
         os: [bookworm, trixie]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Install dependencies
       shell: bash
@@ -122,7 +122,7 @@ jobs:
       run: cpack -G DEB
 
     - name: Upload Build Artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: bngblaster-${{matrix.os}}
         path: ${{ github.workspace }}/build/*.deb
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 88b83678..113562cb 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index f1d91af0..e0b2c961 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -21,7 +21,7 @@ jobs:
           echo "SOURCE_BRANCH=${GITHUB_REF#refs/heads/}" >> $GITHUB_OUTPUT
           echo "SOURCE_TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_OUTPUT
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: ncipollo/release-action@v1
       with:
         tag: ${{ steps.ref_name.outputs.SOURCE_TAG }}
@@ -36,7 +36,7 @@ jobs:
         os: [ubuntu-22.04, ubuntu-24.04]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Download RtBrick libdict
       shell: bash
@@ -106,7 +106,7 @@ jobs:
         os: [bookworm, trixie]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - name: Install dependencies
       shell: bash
diff --git a/code/bngblaster/src/bbl.c b/code/bngblaster/src/bbl.c
index 3245b4eb..d1212c12 100644
--- a/code/bngblaster/src/bbl.c
+++ b/code/bngblaster/src/bbl.c
@@ -395,6 +395,15 @@ bbl_ctrl_job(timer_s *timer)
     }
 }
 
+void
+logfile_fflush_job(timer_s *timer)
+{
+    UNUSED(timer);
+    if(g_log_fp) {
+        fflush(g_log_fp);
+    }
+}
+
 /**
  * @brief BNG BLASTER MAIN FUNCTION
  *
@@ -520,6 +529,11 @@ main(int argc, char *argv[])
 
     /* Open logfile. */
     log_open();
+    if(g_log_fp) {
+        timer_add_periodic(&g_ctx->timer_root, &g_ctx->logfile_fflush_timer, 
+                    "logfile fflush()", 0, 100 * MSEC, g_ctx, 
+                    &logfile_fflush_job);
+    }
 
     /* Init config. */
     bbl_config_init_defaults();
diff --git a/code/bngblaster/src/bbl_a10nsp.c b/code/bngblaster/src/bbl_a10nsp.c
index b2bebe57..2018d2c8 100644
--- a/code/bngblaster/src/bbl_a10nsp.c
+++ b/code/bngblaster/src/bbl_a10nsp.c
@@ -828,10 +828,19 @@ bbl_a10nsp_dynamic(bbl_a10nsp_interface_s *interface,
                     io_new = interface->interface->io.tx;
                     stream->tx_interface = interface->interface;
                 }
-                if(stream->io) {
+
+                if(io_new && stream->io && io_new != stream->io) {
+                    /* IO changed. */
+                    stream->io->update_streams = true;
+                    stream->io = io_new;
+                    stream->update_pps = true;
+                } else if(stream->io) {
+                    /* IO unchanged. */
                     stream->update_pps = true;
                     stream->io->update_streams = true;
-                } else {
+                } else if(io_new) {
+                    /* IO was not assigned before. */
+                    stream->io = io_new;
                     io_stream_add(io_new, stream);
                 }
             }
diff --git a/code/bngblaster/src/bbl_ctx.h b/code/bngblaster/src/bbl_ctx.h
index 5a358dce..0ad090e2 100644
--- a/code/bngblaster/src/bbl_ctx.h
+++ b/code/bngblaster/src/bbl_ctx.h
@@ -19,6 +19,7 @@ typedef struct bbl_ctx_
     struct timer_ *smear_timer;
     struct timer_ *stats_timer;
     struct timer_ *keyboard_timer;
+    struct timer_ *logfile_fflush_timer;
 
     struct timer_ *tcp_timer;
     struct timer_ *fragmentation_timer;
diff --git a/code/bngblaster/src/bbl_lag.c b/code/bngblaster/src/bbl_lag.c
index f1965a2e..c355f2aa 100644
--- a/code/bngblaster/src/bbl_lag.c
+++ b/code/bngblaster/src/bbl_lag.c
@@ -341,15 +341,13 @@ static json_t *
 bbl_lag_json(bbl_lag_s *lag)
 {
     bbl_lag_member_s *member;
-    io_handle_s *io;
     json_t *jobj_lag, *jobj_member, *jobj_lacp, *jobj_array;
 
     jobj_array = json_array();
 
     CIRCLEQ_FOREACH(member, &lag->lag_member_qhead, lag_member_qnode) {
         if(member->lacp_state) {
-            io = member->interface->io.tx;
-            jobj_lacp = json_pack("{si si si ss* si si si si si ss* si si si si si si sf}",
+            jobj_lacp = json_pack("{si si si ss* si si si si si ss* si si si si si }",
                 "bpdu-rx", member->stats.lacp_rx,
                 "bpdu-tx", member->stats.lacp_tx,
                 "bpdu-dropped", member->stats.lacp_dropped,
@@ -364,19 +362,19 @@ bbl_lag_json(bbl_lag_s *lag)
                 "partner-key", member->partner_key,
                 "partner-port-priority", member->partner_port_priority,
                 "partner-port-id", member->partner_port_id,
-                "partner-state", member->partner_state,
-                "stream-count", io->stream_count,
-                "stream-pps", io->stream_pps
+                "partner-state", member->partner_state
                 );
         } else {
             jobj_lacp = NULL;
         }
-        jobj_member = json_pack("{ss* ss* si sI sI ss* so*}",
+        jobj_member = json_pack("{ss* ss* si sI sI si sf ss* so*}",
             "interface", member->interface->name,
             "state", interface_state_string(member->interface->state),
             "state-transitions", member->interface->state_transitions,
             "packets-rx", member->interface->io.rx->stats.packets,
             "packets-tx", member->interface->io.tx->stats.packets,
+            "stream-count", member->interface->io.tx->stream_count,
+            "stream-pps", member->interface->io.tx->stream_pps,
             "lacp-state", lacp_state_string(member->lacp_state),
             "lacp", jobj_lacp);
         if(jobj_member) {
diff --git a/code/bngblaster/src/bbl_session.c b/code/bngblaster/src/bbl_session.c
index c107ba63..768ae010 100644
--- a/code/bngblaster/src/bbl_session.c
+++ b/code/bngblaster/src/bbl_session.c
@@ -415,6 +415,9 @@ bbl_session_reset(bbl_session_s *session) {
     session->ipv6_prefix.len = 0;
     session->delegated_ipv6_prefix.len = 0;
     session->arp_resolved = false;
+    if(session->dhcp_state > BBL_DHCP_DISABLED) {
+        session->dhcp_state = BBL_DHCP_INIT;
+    }
     session->icmpv6_ra_received = false;
     if(session->dhcpv6_state > BBL_DHCP_DISABLED) {
         session->dhcpv6_state = BBL_DHCP_INIT;
@@ -566,6 +569,10 @@ bbl_session_update_state(bbl_session_s *session, session_state_t new_state)
                 clock_gettime(CLOCK_MONOTONIC, &g_ctx->timestamp_established);
             }
             bbl_tun_session_up(session);
+        } else if(new_state == BBL_PPPOE_INIT) {
+            if(old_state == BBL_PPPOE_REQUEST) {
+                bbl_session_reset(session);
+            }
         } else if(new_state == BBL_PPP_TERMINATING) {
             if(session->ipcp_state > BBL_PPP_DISABLED) {
                 session->ipcp_state = BBL_PPP_CLOSED;
@@ -1179,20 +1186,22 @@ bbl_session_substate_pppoe(bbl_session_s *session)
 const char *
 bbl_session_substate_ipoe(bbl_session_s *session)
 {
-    if(session->access_config->ipv4_enable) {
-        if(session->dhcp_state > BBL_DHCP_DISABLED && session->dhcp_state < BBL_DHCP_BOUND) {
-            return "DHCPv4 pending";
-        }
-        if(!session->arp_resolved) {
-            return "ARP not resolved";
-        }
-    }
-    if(session->access_config->ipv6_enable) {
-        if (session->dhcpv6_state > BBL_DHCP_DISABLED && session->dhcpv6_state < BBL_DHCP_BOUND) {
-            return "DHCPv6 pending";
+    if(session->session_state == BBL_IPOE_SETUP) {
+        if(session->access_config->ipv4_enable) {
+            if(session->dhcp_state > BBL_DHCP_DISABLED && session->dhcp_state < BBL_DHCP_BOUND) {
+                return "DHCPv4 pending";
+            }
+            if(!session->arp_resolved) {
+                return "ARP not resolved";
+            }
         }
-        if(!session->icmpv6_ra_received) {
-            return "Wait for ICMPv6 RA";
+        if(session->access_config->ipv6_enable) {
+            if (session->dhcpv6_state > BBL_DHCP_DISABLED && session->dhcpv6_state < BBL_DHCP_BOUND) {
+                return "DHCPv6 pending";
+            }
+            if(!session->icmpv6_ra_received) {
+                return "Wait for ICMPv6 RA";
+            }
         }
     }
     return NULL;
diff --git a/code/bngblaster/src/bbl_stream.c b/code/bngblaster/src/bbl_stream.c
index 25bae22b..2b3166a7 100644
--- a/code/bngblaster/src/bbl_stream.c
+++ b/code/bngblaster/src/bbl_stream.c
@@ -2292,6 +2292,7 @@ void
 bbl_stream_reset(bbl_stream_s *stream)
 {
     if(!stream) return;
+    if(stream->reset) return;
     stream->tx_first_seq = UINT64_MAX;
 
     stream->reset_packets_tx = stream->tx_packets;
diff --git a/code/common/src/timer.c b/code/common/src/timer.c
index bef15394..ed8dd2af 100644
--- a/code/common/src/timer.c
+++ b/code/common/src/timer.c
@@ -423,6 +423,7 @@ timer_add(timer_root_s *root, timer_s **ptimer, char *name,
 
     /* This timer already is enqueued. Requeue. */
     if(timer) {
+        timer->delete = false; /* Stop a pending deferred deletion */
         clock_gettime(CLOCK_MONOTONIC, &timer->expire);
         timer_requeue(timer, sec, nsec);
         /* Update data and cb if there was a change.