diff --git a/llarp/ev/ev_libuv.cpp b/llarp/ev/ev_libuv.cpp
index 2055126d0..49d725dc9 100644
--- a/llarp/ev/ev_libuv.cpp
+++ b/llarp/ev/ev_libuv.cpp
@@ -424,8 +424,11 @@ namespace libuv
     Close() override
     {
       uv_check_stop(&m_Ticker);
-      m_Ticker.data = nullptr;
-      delete this;
+      uv_close((uv_handle_t*)&m_Ticker, [](auto h) {
+        ticker_glue* self = (ticker_glue*)h->data;
+        h->data           = nullptr;
+        delete self;
+      });
     }
 
     uv_check_t m_Ticker;
@@ -663,7 +666,7 @@ namespace libuv
     OnTick(uv_check_t* timer)
     {
       tun_glue* tun = static_cast< tun_glue* >(timer->data);
-      LoopCall(timer, std::bind(&tun_glue::Tick, tun));
+      tun->Tick();
     }
 
     static void
@@ -682,7 +685,7 @@ namespace libuv
       if(sz > 0)
       {
         llarp::LogDebug("tun read ", sz);
-        llarp_buffer_t pkt(m_Buffer, sz);
+        const llarp_buffer_t pkt(m_Buffer, sz);
         if(m_Tun && m_Tun->recvpkt)
           m_Tun->recvpkt(m_Tun, pkt);
       }
@@ -711,9 +714,14 @@ namespace libuv
     void
     Close() override
     {
+      if(m_Tun->impl == nullptr)
+        return;
       m_Tun->impl = nullptr;
       uv_check_stop(&m_Ticker);
-      uv_close((uv_handle_t*)&m_Handle, &OnClosed);
+      uv_close((uv_handle_t*)&m_Ticker, [](uv_handle_t* h) {
+        tun_glue* glue = static_cast< tun_glue* >(h->data);
+        uv_close((uv_handle_t*)&glue->m_Handle, &OnClosed);
+      });
     }
 
     bool
@@ -824,18 +832,24 @@ namespace libuv
   int
   Loop::tick(int ms)
   {
-    uv_timer_start(&m_TickTimer, &OnTickTimeout, ms, 0);
-    uv_run(&m_Impl, UV_RUN_ONCE);
+    if(m_Run)
+    {
+      uv_timer_start(&m_TickTimer, &OnTickTimeout, ms, 0);
+      uv_run(&m_Impl, UV_RUN_ONCE);
+    }
     return 0;
   }
 
   void
   Loop::stop()
   {
-    uv_stop(&m_Impl);
-    llarp::LogInfo("stopping event loop");
+    if(m_Run)
+    {
+      llarp::LogInfo("stopping event loop");
+      CloseAll();
+      // uv_stop(&m_Impl);
+    }
     m_Run.store(false);
-    CloseAll();
   }
 
   void
diff --git a/llarp/handlers/exit.cpp b/llarp/handlers/exit.cpp
index c8d5431c5..7c5c490d6 100644
--- a/llarp/handlers/exit.cpp
+++ b/llarp/handlers/exit.cpp
@@ -16,7 +16,13 @@ namespace llarp
     static void
     ExitHandlerRecvPkt(llarp_tun_io *tun, const llarp_buffer_t &buf)
     {
-      static_cast< ExitEndpoint * >(tun->user)->OnInetPacket(buf);
+      std::vector< byte_t > pkt;
+      pkt.resize(buf.sz);
+      std::copy_n(buf.base, buf.sz, pkt.data());
+      auto self = static_cast< ExitEndpoint * >(tun->user);
+      LogicCall(self->GetRouter()->logic(), [self, pktbuf = std::move(pkt)]() {
+        self->OnInetPacket(std::move(pktbuf));
+      });
     }
 
     static void
@@ -457,10 +463,13 @@ namespace llarp
     }
 
     void
-    ExitEndpoint::OnInetPacket(const llarp_buffer_t &buf)
+    ExitEndpoint::OnInetPacket(std::vector< byte_t > buf)
     {
+      const llarp_buffer_t buffer(buf);
       m_InetToNetwork.EmplaceIf(
-          [b = ManagedBuffer(buf)](Pkt_t &pkt) -> bool { return pkt.Load(b); });
+          [b = ManagedBuffer(buffer)](Pkt_t &pkt) -> bool {
+            return pkt.Load(b);
+          });
     }
 
     bool
diff --git a/llarp/handlers/exit.hpp b/llarp/handlers/exit.hpp
index 21a499160..170535fa5 100644
--- a/llarp/handlers/exit.hpp
+++ b/llarp/handlers/exit.hpp
@@ -57,7 +57,7 @@ namespace llarp
 
       /// handle ip packet from outside
       void
-      OnInetPacket(const llarp_buffer_t& buf);
+      OnInetPacket(std::vector< byte_t > buf);
 
       AbstractRouter*
       GetRouter();
diff --git a/llarp/handlers/tun.cpp b/llarp/handlers/tun.cpp
index cdd538094..40e9e842f 100644
--- a/llarp/handlers/tun.cpp
+++ b/llarp/handlers/tun.cpp
@@ -32,11 +32,11 @@ namespace llarp
       m_NetworkToUserPktQueue.Process(send);
     }
 
-    static void
-    tunifTick(llarp_tun_io *tun)
+    void
+    TunEndpoint::tunifTick(llarp_tun_io *tun)
     {
       auto *self = static_cast< TunEndpoint * >(tun->user);
-      self->Flush();
+      LogicCall(self->m_router->logic(), [self]() { self->Flush(); });
     }
 
     TunEndpoint::TunEndpoint(const std::string &nickname, AbstractRouter *r,
@@ -308,13 +308,20 @@ namespace llarp
     void
     TunEndpoint::Flush()
     {
-      auto self = shared_from_this();
-      FlushSend();
-      LogicCall(RouterLogic(), [=] {
+      static const auto func = [](auto self) {
+        self->FlushSend();
         self->m_ExitMap.ForEachValue(
             [](const auto &exit) { exit->FlushUpstream(); });
         self->Pump(self->Now());
-      });
+      };
+      if(NetworkIsIsolated())
+      {
+        LogicCall(RouterLogic(), std::bind(func, shared_from_this()));
+      }
+      else
+      {
+        func(this);
+      }
     }
 
     static bool
@@ -749,13 +756,11 @@ namespace llarp
     void
     TunEndpoint::Tick(llarp_time_t now)
     {
-      LogicCall(EndpointLogic(), [&]() {
-        m_ExitMap.ForEachValue([&](const auto &exit) {
-          this->EnsureRouterIsKnown(exit->Endpoint());
-          exit->Tick(now);
-        });
-        Endpoint::Tick(now);
+      m_ExitMap.ForEachValue([&](const auto &exit) {
+        this->EnsureRouterIsKnown(exit->Endpoint());
+        exit->Tick(now);
       });
+      Endpoint::Tick(now);
     }
 
     bool
@@ -983,8 +988,7 @@ namespace llarp
         return false;
       };
       LogicCall(self->EndpointLogic(),
-                std::bind(&TunEndpoint::FlushToUser, self->shared_from_this(),
-                          sendpkt));
+                std::bind(&TunEndpoint::FlushToUser, self, sendpkt));
     }
 
     void
@@ -992,9 +996,14 @@ namespace llarp
     {
       // called for every packet read from user in isolated network thread
       auto *self = static_cast< TunEndpoint * >(tun->user);
-      const ManagedBuffer pkt(b);
-      self->m_UserToNetworkPktQueue.EmplaceIf(
-          [&pkt](net::IPPacket &p) -> bool { return p.Load(pkt); });
+      std::vector< byte_t > pkt;
+      pkt.resize(b.sz);
+      std::copy_n(b.base, b.sz, pkt.data());
+      LogicCall(self->RouterLogic(), [self, buffer = std::move(pkt)]() {
+        const llarp_buffer_t pbuf(buffer);
+        self->m_UserToNetworkPktQueue.EmplaceIf(
+            [&pbuf](net::IPPacket &p) -> bool { return p.Load(pbuf); });
+      });
     }
 
     TunEndpoint::~TunEndpoint() = default;
diff --git a/llarp/handlers/tun.hpp b/llarp/handlers/tun.hpp
index fc48ec547..2889e7a5d 100644
--- a/llarp/handlers/tun.hpp
+++ b/llarp/handlers/tun.hpp
@@ -56,6 +56,9 @@ namespace llarp
       void
       TickTun(llarp_time_t now);
 
+      static void
+      tunifTick(llarp_tun_io*);
+
       bool
       MapAddress(const service::Address& remote, huint128_t ip, bool SNode);