diff --git a/play.pokemonshowdown.com/src/client-connection.ts b/play.pokemonshowdown.com/src/client-connection.ts
index 503db7f15..2329b834c 100644
--- a/play.pokemonshowdown.com/src/client-connection.ts
+++ b/play.pokemonshowdown.com/src/client-connection.ts
@@ -207,6 +207,7 @@ export class PSConnection {
 
 	static connect() {
 		if (PS.connection?.socket) return;
+		if (PS.connection?.connected) return; // already connected via worker, don't call doAutojoin on live session
 		PS.isOffline = false;
 		if (!PS.connection) {
 			PS.connection = new PSConnection();
diff --git a/play.pokemonshowdown.com/src/client-main.ts b/play.pokemonshowdown.com/src/client-main.ts
index 503e281e7..eef27bfbf 100644
--- a/play.pokemonshowdown.com/src/client-main.ts
+++ b/play.pokemonshowdown.com/src/client-main.ts
@@ -614,6 +614,7 @@ class PSUser extends PSStreamModel<PSLoginState | null> {
 	avatar = "lucas";
 	challstr = '';
 	loggingIn: string | null = null;
+	loginKey = 0;
 	initializing = true;
 	gapiLoaded = false;
 	nameRegExp: RegExp | null = null;
@@ -674,16 +675,19 @@ class PSUser extends PSStreamModel<PSLoginState | null> {
 			this.update({ success: true });
 			return;
 		}
+		const key = ++this.loginKey;
 		this.loggingIn = name;
 		this.update(null);
 		PSLoginServer.rawQuery(
 			'getassertion', { userid, challstr: this.challstr }
 		).then(res => {
+			if (this.loginKey !== key) return;
 			this.handleAssertion(name, res);
 			this.updateRegExp();
 		});
 	}
 	changeNameWithPassword(name: string, password: string, special: PSLoginState = { needsPassword: true }) {
+		const key = ++this.loginKey;
 		this.loggingIn = name;
 		if (!password && !special) {
 			this.updateLogin({
@@ -696,6 +700,7 @@ class PSUser extends PSStreamModel<PSLoginState | null> {
 		PSLoginServer.query(
 			'login', { name, pass: password, challstr: this.challstr }
 		).then(data => {
+			if (this.loginKey !== key) return;
 			this.loggingIn = null;
 			if (data?.curuser?.loggedin) {
 				// success!
@@ -1228,8 +1233,8 @@ export class PSRoom extends PSStreamModel<Args | null> implements RoomOptions {
 				return this.errorReply(`You are already connected.`);
 			}
 
-			if (!PS.isOffline) {
-				// connect to room
+			if (!PS.isOffline && PS.connection?.connected) {
+				// server connection is active; attempt room-level reconnection
 				try {
 					this.connect();
 				} catch (err: any) {
diff --git a/play.pokemonshowdown.com/src/panel-chat.tsx b/play.pokemonshowdown.com/src/panel-chat.tsx
index da82cac50..baeeb4fc1 100644
--- a/play.pokemonshowdown.com/src/panel-chat.tsx
+++ b/play.pokemonshowdown.com/src/panel-chat.tsx
@@ -177,11 +177,11 @@ export class ChatRoom extends PSRoom {
 		} else {
 			let lines = msg.split('\n');
 
-			// cut off starting lines until we get to PS.lastMessage timestamp
+			// cut off starting lines until we get to this room's last message timestamp
 			// then cut off roomintro from the end
 			let cutOffStart = 0;
 			let cutOffEnd = lines.length;
-			const cutOffTime = parseInt(PS.lastMessageTime);
+			const cutOffTime = (this.lastMessage?.[0] === 'c:') ? parseInt(this.lastMessage[1]) : 0;
 			const cutOffExactLine = this.lastMessage ? '|' + this.lastMessage?.join('|') : '';
 			let reconnectMessage = '|raw|<div class="infobox">You reconnected.</div>';
 			for (let i = 0; i < lines.length; i++) {
@@ -192,7 +192,7 @@ export class ChatRoom extends PSRoom {
 					cutOffStart = i + 1;
 				} else if (lines[i].startsWith(`|c:|`)) {
 					const time = parseInt(lines[i].split('|')[2] || '');
-					if (time < cutOffTime) cutOffStart = i;
+					if (time < cutOffTime) cutOffStart = i + 1;
 				}
 				if (lines[i].startsWith('|raw|<div class="infobox"> You joined ')) {
 					reconnectMessage = `|raw|<div class="infobox">You reconnected to ${lines[i].slice(38)}`;
@@ -200,14 +200,6 @@ export class ChatRoom extends PSRoom {
 					if (!lines[i - 1]) cutOffEnd = i - 1;
 				}
 			}
-			console.log("Reconnection log splice:");
-			console.log([
-				...lines.slice(0, cutOffStart),
-				'====================',
-				...lines.slice(cutOffStart, cutOffEnd),
-				'====================',
-				...lines.slice(cutOffEnd),
-			].join('\n'));
 			lines = lines.slice(cutOffStart, cutOffEnd);
 
 			if (lines.length) {
diff --git a/play.pokemonshowdown.com/src/panel-mainmenu.tsx b/play.pokemonshowdown.com/src/panel-mainmenu.tsx
index 52a87e816..23bd51c5e 100644
--- a/play.pokemonshowdown.com/src/panel-mainmenu.tsx
+++ b/play.pokemonshowdown.com/src/panel-mainmenu.tsx
@@ -125,9 +125,12 @@ export class MainMenuRoom extends PSRoom {
 		case 'challstr': {
 			const [, challstr] = args;
 			PS.user.challstr = challstr;
+			PS.user.loginKey++; // stale callbacks check this key and early-return if it no longer matches
+			const upkeepKey = PS.user.loginKey;
 			PSLoginServer.query(
 				'upkeep', { challstr }
 			).then(res => {
+				if (PS.user.loginKey !== upkeepKey) return;
 				if (!res?.username) {
 					PS.user.initializing = false;
 					return;
@@ -137,13 +140,15 @@ export class MainMenuRoom extends PSRoom {
 				if (res.loggedin) {
 					PS.user.registered = { name: res.username, userid: toID(res.username) };
 				}
-				PS.user.handleAssertion(res.username, res.assertion);
+				// preserve current nick on reconnect rather than reverting to registered name
+				const nameToUse = PS.user.named ? PS.user.name : res.username;
+				PS.user.handleAssertion(nameToUse, res.assertion);
 			});
 			return;
 		} case 'updateuser': {
 			const [, fullName, namedCode, avatar] = args;
 			const named = namedCode === '1';
-			if (named) PS.user.initializing = false;
+			PS.user.initializing = false;
 			PS.user.setName(fullName, named, avatar);
 			PS.teams.loadRemoteTeams();
 			return;