diff --git a/lobby/templates/lobby/player_screen.html b/lobby/templates/lobby/player_screen.html
index 4dac763..e66f661 100644
--- a/lobby/templates/lobby/player_screen.html
+++ b/lobby/templates/lobby/player_screen.html
@@ -9,6 +9,9 @@
 #joinStatus { margin: 6px 0 10px; font-size: 0.95rem; color: #333; }
 #contextLockHint { margin: 6px 0 10px; font-size: 0.95rem; color: #333; }
 #phaseStatus { margin: 6px 0 10px; font-size: 0.95rem; color: #333; }
+#connectionBanner { margin: 8px 0 10px; padding: 8px 10px; border-radius: 8px; border: 1px solid #b91c1c; background: #fee2e2; color: #7f1d1d; display: none; }
+#connectionBanner button { margin-left: 8px; border: 1px solid #991b1b; background: #fff; color: #7f1d1d; border-radius: 6px; padding: 4px 8px; cursor: pointer; }
+#connectionBanner button[disabled] { opacity: 0.55; cursor: not-allowed; }
 #lieStatus.locked { color: #0a5f2d; font-weight: 600; }
 #guessStatus.locked { color: #0a5f2d; font-weight: 600; }
 </style>
@@ -38,6 +41,7 @@
 <p id="playerLastRefreshStatus">Session-data ikke opdateret endnu.</p>
 <p id="phaseStatus">Fase: ukendt (opdatér session-status).</p>
 <p id="playerErrorHint">Ingen fejl.</p>
+<div id="connectionBanner">Forbindelsen til serveren blev afbrudt.<button id="connectionRetryBtn" type="button" onclick="retryConnection()">Prøv igen</button></div>
 <pre id="out">Klar.</pre>
 <script>
 var availableAnswers=[];
@@ -53,6 +57,8 @@ var playerAutoRefreshTimer=null;
 var sessionDetailInFlight=false;
 var playerLastRefreshAtLabel="";
 var playerLastRefreshFailed=false;
+var connectionLost=false;
+var connectionRetryInFlight=false;
 function code(){return document.getElementById("code").value.trim().toUpperCase();}
 function pid(){return document.getElementById("playerId").value.trim();}
 function rq(){return document.getElementById("roundQuestionId").value.trim();}
@@ -75,11 +81,13 @@ function markPlayerSessionRefresh(status){if(status>=200&&status<300){playerLast
 function updatePlayerLastRefreshStatus(){var el=document.getElementById("playerLastRefreshStatus");if(!el){return;}if(!playerLastRefreshAtLabel){el.textContent=playerLastRefreshFailed?"Session-data kan være forældet (ingen succesfuld opdatering endnu).":"Session-data ikke opdateret endnu.";return;}if(playerLastRefreshFailed){el.textContent="Session-data kan være forældet (seneste succes: "+playerLastRefreshAtLabel+").";return;}el.textContent="Sidst opdateret: "+playerLastRefreshAtLabel+".";}
 function updatePlayerAutoRefreshUi(){var btn=document.getElementById("playerAutoRefreshToggleBtn");var hint=document.getElementById("playerAutoRefreshHint");if(btn){btn.textContent="Auto-refresh: "+(playerAutoRefreshEnabled?"ON":"OFF");btn.disabled=sessionDetailInFlight||joinInFlight||!code();}if(!hint){return;}if(sessionDetailInFlight){hint.textContent="Auto-refresh-lås: afvent aktiv session-opdatering.";return;}if(joinInFlight){hint.textContent="Auto-refresh-lås: afvent aktiv join.";return;}if(!code()){hint.textContent="Auto-refresh kræver sessionkode.";return;}if(!playerAutoRefreshEnabled){hint.textContent="Auto-refresh er slået fra.";return;}if(currentSessionStatus==="finished"){hint.textContent="Auto-refresh stoppet: spillet er afsluttet.";return;}hint.textContent="Auto-refresh aktiv (10s) for spillerstatus.";}
 function stopPlayerAutoRefresh(reason){playerAutoRefreshEnabled=false;if(playerAutoRefreshTimer){clearInterval(playerAutoRefreshTimer);playerAutoRefreshTimer=null;}if(reason){var hint=document.getElementById("playerAutoRefreshHint");if(hint){hint.textContent=reason;}}updatePlayerAutoRefreshUi();savePlayerContext();}
-function startPlayerAutoRefresh(){if(!code()){updatePlayerAutoRefreshUi();return;}playerAutoRefreshEnabled=true;if(playerAutoRefreshTimer){clearInterval(playerAutoRefreshTimer);}playerAutoRefreshTimer=setInterval(function(){if(!code()||sessionDetailInFlight){return;}if(currentSessionStatus==="finished"){stopPlayerAutoRefresh("Auto-refresh stoppet: spillet er afsluttet.");return;}sessionDetail();},10000);updatePlayerAutoRefreshUi();savePlayerContext();}
+function startPlayerAutoRefresh(){if(!code()){updatePlayerAutoRefreshUi();return;}playerAutoRefreshEnabled=true;if(playerAutoRefreshTimer){clearInterval(playerAutoRefreshTimer);}playerAutoRefreshTimer=setInterval(function(){if(!code()||sessionDetailInFlight){return;}if(currentSessionStatus==="finished"){stopPlayerAutoRefresh("Auto-refresh stoppet: spillet er afsluttet.");return;}sessionDetail().catch(function(){});},10000);updatePlayerAutoRefreshUi();savePlayerContext();}
 function togglePlayerAutoRefresh(){if(joinInFlight){updatePlayerAutoRefreshUi();return;}if(playerAutoRefreshEnabled){stopPlayerAutoRefresh();return;}startPlayerAutoRefresh();}
-function updatePlayerErrorHint(status,data){var el=document.getElementById("playerErrorHint");if(!el){return;}if(status>=200&&status<300){el.textContent="Ingen fejl.";return;}var errKey=normalizeApiError(data);el.textContent="Fejl: "+mapUiErrorMessage(errKey)+" ("+(errKey||("http_"+status))+")";}
-function updateSessionDetailState(){var btn=document.getElementById("sessionDetailBtn");var hint=document.getElementById("sessionRefreshHint");var submitInFlight=lieSubmitInFlight||guessSubmitInFlight;if(btn){btn.disabled=sessionDetailInFlight||joinInFlight||submitInFlight||!code();}if(!hint){updatePlayerAutoRefreshUi();return;}if(sessionDetailInFlight){hint.textContent="Opdaterer session-status…";updatePlayerAutoRefreshUi();return;}if(joinInFlight){hint.textContent="Session-opdatering er låst mens join kører.";updatePlayerAutoRefreshUi();return;}if(submitInFlight){hint.textContent="Session-opdatering er låst mens submit kører.";updatePlayerAutoRefreshUi();return;}if(!code()){hint.textContent="Angiv sessionkode for at opdatere session-status.";updatePlayerAutoRefreshUi();return;}hint.textContent="Session-opdatering klar.";updatePlayerAutoRefreshUi();}
-function updateJoinState(){var btn=document.getElementById("joinBtn");var status=document.getElementById("joinStatus");var joined=!!(pid()&&document.getElementById("sessionToken").value.trim());var canJoin=canAttemptJoin();if(btn){btn.disabled=joinInFlight||sessionDetailInFlight||joined||!canJoin;}if(!status){updateContextLockState();return;}if(joinInFlight){status.textContent="Joiner…";updateContextLockState();return;}if(sessionDetailInFlight&&!joined){status.textContent="Afvent aktiv session-opdatering før join.";updateContextLockState();return;}if(joined){status.textContent="Join gennemført.";updateContextLockState();return;}if(!canJoin){status.textContent="Udfyld kode og nickname for at join.";updateContextLockState();return;}status.textContent="Klar til join.";updateContextLockState();}
+function updateConnectionBanner(){var banner=document.getElementById("connectionBanner");var retryBtn=document.getElementById("connectionRetryBtn");if(!banner||!retryBtn){return;}banner.style.display=connectionLost?"block":"none";retryBtn.disabled=connectionRetryInFlight||sessionDetailInFlight||joinInFlight||!code();}
+function setConnectionLost(isLost){connectionLost=!!isLost;updateConnectionBanner();}
+function updatePlayerErrorHint(status,data){var el=document.getElementById("playerErrorHint");if(!el){return;}if(status>=200&&status<300){el.textContent="Ingen fejl.";setConnectionLost(false);return;}var errKey=normalizeApiError(data);el.textContent="Fejl: "+mapUiErrorMessage(errKey)+" ("+(errKey||("http_"+status))+")";}
+function updateSessionDetailState(){var btn=document.getElementById("sessionDetailBtn");var hint=document.getElementById("sessionRefreshHint");var submitInFlight=lieSubmitInFlight||guessSubmitInFlight;if(btn){btn.disabled=sessionDetailInFlight||joinInFlight||submitInFlight||!code();}if(!hint){updatePlayerAutoRefreshUi();updateConnectionBanner();return;}if(sessionDetailInFlight){hint.textContent="Opdaterer session-status…";updatePlayerAutoRefreshUi();updateConnectionBanner();return;}if(joinInFlight){hint.textContent="Session-opdatering er låst mens join kører.";updatePlayerAutoRefreshUi();updateConnectionBanner();return;}if(submitInFlight){hint.textContent="Session-opdatering er låst mens submit kører.";updatePlayerAutoRefreshUi();updateConnectionBanner();return;}if(!code()){hint.textContent="Angiv sessionkode for at opdatere session-status.";updatePlayerAutoRefreshUi();updateConnectionBanner();return;}hint.textContent="Session-opdatering klar.";updatePlayerAutoRefreshUi();updateConnectionBanner();}
+function updateJoinState(){var btn=document.getElementById("joinBtn");var status=document.getElementById("joinStatus");var joined=!!(pid()&&document.getElementById("sessionToken").value.trim());var canJoin=canAttemptJoin();if(btn){btn.disabled=joinInFlight||sessionDetailInFlight||joined||!canJoin;}if(!status){updateContextLockState();updateConnectionBanner();return;}if(joinInFlight){status.textContent="Joiner…";updateContextLockState();updateConnectionBanner();return;}if(sessionDetailInFlight&&!joined){status.textContent="Afvent aktiv session-opdatering før join.";updateContextLockState();updateConnectionBanner();return;}if(joined){status.textContent="Join gennemført.";updateContextLockState();updateConnectionBanner();return;}if(!canJoin){status.textContent="Udfyld kode og nickname for at join.";updateContextLockState();updateConnectionBanner();return;}status.textContent="Klar til join.";updateContextLockState();updateConnectionBanner();}
 
 function guessStorageKey(){var c=code();var p=pid();var q=rq();if(!c||!p||!q){return "";}return ["wppGuess",c,p,q].join(":");}
 function lieStorageKey(){var c=code();var p=pid();var q=rq();if(!c||!p||!q){return "";}return ["wppLie",c,p,q].join(":");}
@@ -94,9 +102,10 @@ function updateGuessSubmitState(){var selected=document.getElementById("guessTex
 function setGuess(text,submitted){document.getElementById("guessText").value=text||"";if(typeof submitted==="boolean"){guessSubmitted=submitted;}var buttons=document.querySelectorAll("#answerOptions button");buttons.forEach(function(btn){btn.classList.toggle("active",btn.dataset.answer===text);});updateGuessSubmitState();
 updateJoinState();}
 function renderAnswerOptions(roundQuestion){var wrap=document.getElementById("answerOptions");wrap.innerHTML="";availableAnswers=[];guessSubmitted=false;setGuess("",false);lieSubmitted=false;setLieState("",false);if(!roundQuestion||!Array.isArray(roundQuestion.answers)){updateGuessSubmitState();updateLieSubmitState();return;}roundQuestion.answers.forEach(function(item){if(!item||!item.text){return;}availableAnswers.push(item.text);var btn=document.createElement("button");btn.type="button";btn.dataset.answer=item.text;btn.textContent=item.text;btn.onclick=function(){if(guessSubmitted){return;}setGuess(item.text,false);persistGuessState(item.text,false);};wrap.appendChild(btn);});var saved=loadGuessState();if(saved&&availableAnswers.indexOf(saved.selected_text)!==-1){setGuess(saved.selected_text,!!saved.submitted);}updateGuessSubmitState();}
-async function api(path,method,payload){var o={method:method||"GET",headers:{"Accept":"application/json"}};if(payload!==null){o.headers["Content-Type"]="application/json";o.body=JSON.stringify(payload);}var r=await fetch(path,o);var d=await r.json().catch(function(){return {};});var isSessionDetailRead=(method||"GET")==="GET"&&/^\/lobby\/sessions\/[A-Z0-9]+$/.test(path);if(isSessionDetailRead){markPlayerSessionRefresh(r.status);}document.getElementById("out").textContent=JSON.stringify({status:r.status,data:d},null,2);if(d.player&&d.player.id){document.getElementById("playerId").value=d.player.id;}if(d.player&&d.player.session_token){document.getElementById("sessionToken").value=d.player.session_token;}if(d.round_question&&d.round_question.id){document.getElementById("roundQuestionId").value=d.round_question.id;}if(d.session&&d.session.status){currentSessionStatus=d.session.status;}if(d.round_question){renderAnswerOptions(d.round_question);var savedLie=loadLieState();if(savedLie){setLieState(savedLie.text||"",!!savedLie.submitted);}}else{document.getElementById("roundQuestionId").value="";renderAnswerOptions(null);}if(d.guess&&d.guess.round_question_id){document.getElementById("roundQuestionId").value=d.guess.round_question_id;setGuess(d.guess.selected_text||"",true);persistGuessState(d.guess.selected_text||"",true);}updateRoundContextHint();updatePlayerErrorHint(r.status,d);updatePhaseStatus();updateLieSubmitState();updateGuessSubmitState();if(currentSessionStatus==="finished"&&playerAutoRefreshEnabled){stopPlayerAutoRefresh("Auto-refresh stoppet: spillet er afsluttet.");}else{updatePlayerAutoRefreshUi();}savePlayerContext();return d;}
+async function api(path,method,payload){var o={method:method||"GET",headers:{"Accept":"application/json"}};if(payload!==null){o.headers["Content-Type"]="application/json";o.body=JSON.stringify(payload);}try{var r=await fetch(path,o);var d=await r.json().catch(function(){return {};});var isSessionDetailRead=(method||"GET")==="GET"&&/^\/lobby\/sessions\/[A-Z0-9]+$/.test(path);if(isSessionDetailRead){markPlayerSessionRefresh(r.status);}document.getElementById("out").textContent=JSON.stringify({status:r.status,data:d},null,2);if(d.player&&d.player.id){document.getElementById("playerId").value=d.player.id;}if(d.player&&d.player.session_token){document.getElementById("sessionToken").value=d.player.session_token;}if(d.round_question&&d.round_question.id){document.getElementById("roundQuestionId").value=d.round_question.id;}if(d.session&&d.session.status){currentSessionStatus=d.session.status;}if(d.round_question){renderAnswerOptions(d.round_question);var savedLie=loadLieState();if(savedLie){setLieState(savedLie.text||"",!!savedLie.submitted);}}else{document.getElementById("roundQuestionId").value="";renderAnswerOptions(null);}if(d.guess&&d.guess.round_question_id){document.getElementById("roundQuestionId").value=d.guess.round_question_id;setGuess(d.guess.selected_text||"",true);persistGuessState(d.guess.selected_text||"",true);}updateRoundContextHint();updatePlayerErrorHint(r.status,d);updatePhaseStatus();updateLieSubmitState();updateGuessSubmitState();if(currentSessionStatus==="finished"&&playerAutoRefreshEnabled){stopPlayerAutoRefresh("Auto-refresh stoppet: spillet er afsluttet.");}else{updatePlayerAutoRefreshUi();}savePlayerContext();return d;}catch(err){setConnectionLost(true);if((method||"GET")==="GET"&&/^\/lobby\/sessions\/[A-Z0-9]+$/.test(path)){markPlayerSessionRefresh(0);}document.getElementById("out").textContent=JSON.stringify({status:0,data:{error:"connection_lost",detail:"Kunne ikke kontakte serveren."}},null,2);document.getElementById("playerErrorHint").textContent="Fejl: Mistede forbindelsen til serveren. Prøv igen.";updateSessionDetailState();throw err;}}
 function joinSession(){if(joinInFlight){return Promise.resolve({error:"join_in_flight"});}if(!canAttemptJoin()){updateJoinState();return Promise.resolve({error:"missing_join_input"});}if(pid()&&document.getElementById("sessionToken").value.trim()){updateJoinState();return Promise.resolve({error:"already_joined_client"});}joinInFlight=true;updateJoinState();updatePlayerAutoRefreshUi();return api("/lobby/sessions/join","POST",{code:code(),nickname:document.getElementById("nickname").value.trim()}).then(function(d){joinInFlight=false;if(d&&d.player&&d.player.id){updateJoinState();updatePlayerAutoRefreshUi();return d;}updateJoinState();updatePlayerAutoRefreshUi();document.getElementById("joinStatus").textContent="Join fejlede – prøv igen.";return d;}).catch(function(err){joinInFlight=false;updateJoinState();updatePlayerAutoRefreshUi();document.getElementById("joinStatus").textContent="Join fejlede – prøv igen.";throw err;});}
 function sessionDetail(){if(!code()){updateSessionDetailState();return Promise.resolve({error:"missing_session_code"});}if(sessionDetailInFlight){return Promise.resolve({error:"session_detail_in_flight"});}sessionDetailInFlight=true;updateSessionDetailState();return api("/lobby/sessions/"+code(),"GET",null).finally(function(){sessionDetailInFlight=false;updateSessionDetailState();});} 
+function retryConnection(){if(connectionRetryInFlight||!code()){updateConnectionBanner();return Promise.resolve({error:"retry_unavailable"});}connectionRetryInFlight=true;updateConnectionBanner();return sessionDetail().then(function(result){setConnectionLost(false);return result;}).finally(function(){connectionRetryInFlight=false;updateConnectionBanner();});}
 function submitLie(){if(lieSubmitted){return Promise.resolve({error:"lie_already_submitted_client"});}if(lieSubmitInFlight){return Promise.resolve({error:"lie_submit_in_flight"});}if(!hasSubmitContext()){updateLieSubmitState();return Promise.resolve({error:"missing_submit_context"});}var text=(document.getElementById("lieText").value||"").trim();if(!text){updateLieSubmitState();return Promise.resolve({error:"empty_lie_text"});}lieSubmitInFlight=true;updateLieSubmitState();return api("/lobby/sessions/"+code()+"/questions/"+rq()+"/lies/submit","POST",{player_id:parseInt(pid(),10),session_token:document.getElementById("sessionToken").value,text:text}).then(function(d){if(d&&d.lie&&d.lie.id){lieSubmitted=true;persistLieState(text,true);}return d;}).finally(function(){lieSubmitInFlight=false;updateLieSubmitState();});}
 document.getElementById("lieText").addEventListener("input",function(){if(!lieSubmitted){updateLieSubmitState();persistLieState(document.getElementById("lieText").value,false);}});updateLieSubmitState();
 function submitGuess(){if(guessSubmitted){return Promise.resolve({error:"guess_already_submitted_client"});}if(guessSubmitInFlight){return Promise.resolve({error:"guess_submit_in_flight"});}if(!hasSubmitContext()){updateGuessSubmitState();document.getElementById("out").textContent=JSON.stringify({status:400,data:{error:"Join først for at aktivere gæt"}},null,2);return Promise.resolve({error:"missing_submit_context"});}var selected=document.getElementById("guessText").value;if(availableAnswers.indexOf(selected)===-1){document.getElementById("out").textContent=JSON.stringify({status:400,data:{error:"Vælg et af de viste svarmuligheder"}},null,2);return Promise.resolve({error:"invalid_client_guess"});}guessSubmitInFlight=true;updateGuessSubmitState();return api("/lobby/sessions/"+code()+"/questions/"+rq()+"/guesses/submit","POST",{player_id:parseInt(pid(),10),session_token:document.getElementById("sessionToken").value,selected_text:selected}).finally(function(){guessSubmitInFlight=false;updateGuessSubmitState();});}
@@ -107,6 +116,7 @@ updateJoinState();
 updatePlayerAutoRefreshUi();
 updatePlayerLastRefreshStatus();
 updateRoundContextHint();
-if(restorePlayerContext()){if(playerAutoRefreshEnabled){startPlayerAutoRefresh();}sessionDetail();}else{savePlayerContext();}
+updateConnectionBanner();
+if(restorePlayerContext()){if(playerAutoRefreshEnabled){startPlayerAutoRefresh();}sessionDetail().catch(function(){});}else{savePlayerContext();}
 </script>
 </body></html>
diff --git a/lobby/tests.py b/lobby/tests.py
index 051298a..81dc680 100644
--- a/lobby/tests.py
+++ b/lobby/tests.py
@@ -866,6 +866,19 @@ class UiScreenTests(TestCase):
         self.assertContains(response, "Round question-id er låst mens session-opdatering kører.")
         self.assertContains(response, "Kategori er låst mens session-opdatering kører.")
         self.assertContains(response, "categorySelect.disabled=hostActionInFlight||sessionDetailInFlight||!hasCode||phase!==")
+        self.assertContains(response, "hostShellRouteFromPath")
+        self.assertContains(response, "syncHostShellRoute")
+        self.assertContains(response, "Deep-link route guard: omdirigeret")
+
+    def test_host_screen_deeplink_requires_login(self):
+        response = self.client.get(reverse("lobby:host_screen_deeplink", kwargs={"spa_path": "guess"}))
+        self.assertEqual(response.status_code, 302)
+
+    def test_host_screen_deeplink_renders_for_logged_in_user(self):
+        self.client.login(username="host_ui", password="secret123")
+        response = self.client.get(reverse("lobby:host_screen_deeplink", kwargs={"spa_path": "guess"}))
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Host panel")
 
     def test_player_screen_is_public(self):
         response = self.client.get(reverse("lobby:player_screen"))
@@ -898,6 +911,11 @@ class UiScreenTests(TestCase):
         self.assertContains(response, "Udfyld kode og nickname for at join.")
         self.assertContains(response, "Afvent aktiv session-opdatering før join.")
         self.assertContains(response, "btn.disabled=joinInFlight||sessionDetailInFlight||joined||!canJoin")
+        self.assertContains(response, "id=\"connectionBanner\"")
+        self.assertContains(response, "id=\"connectionRetryBtn\"")
+        self.assertContains(response, "retryConnection")
+        self.assertContains(response, "setConnectionLost")
+        self.assertContains(response, "connection_lost")
         self.assertContains(response, "id=\"contextLockHint\"")
         self.assertContains(response, "updateContextLockState")
         self.assertContains(response, "Spillerkontekst er låst efter join.")