diff --git a/pkg/connector/handletelegram.go b/pkg/connector/handletelegram.go
index bccf7cc6..0eaab578 100644
--- a/pkg/connector/handletelegram.go
+++ b/pkg/connector/handletelegram.go
@@ -70,6 +70,9 @@ func (t *TelegramClient) selfLeaveChat(ctx context.Context, portalKey networkid.
 					Type:      bridgev2.RemoteEventChatDelete,
 					PortalKey: t.makePortalKeyFromID(peerType, id, topicID),
 					Sender:    t.mySender(),
+					LogContext: func(c zerolog.Context) zerolog.Context {
+						return c.AnErr("self_leave_reason", reason)
+					},
 				},
 				OnlyForMe: true,
 			})
@@ -83,6 +86,9 @@ func (t *TelegramClient) selfLeaveChat(ctx context.Context, portalKey networkid.
 			Type:      bridgev2.RemoteEventChatDelete,
 			PortalKey: portalKey,
 			Sender:    t.mySender(),
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.AnErr("self_leave_reason", reason)
+			},
 		},
 		OnlyForMe: true,
 	})
@@ -96,6 +102,9 @@ func (t *TelegramClient) selfLeaveChat(ctx context.Context, portalKey networkid.
 				Type:      bridgev2.RemoteEventChatDelete,
 				PortalKey: t.makePortalKeyFromID(peerType, id, ids.TopicIDSpaceRoom),
 				Sender:    t.mySender(),
+				LogContext: func(c zerolog.Context) zerolog.Context {
+					return c.AnErr("self_leave_reason", reason)
+				},
 			},
 			OnlyForMe: true,
 		})
@@ -145,8 +154,12 @@ func (t *TelegramClient) onUpdateChannel(ctx context.Context, e tg.Entities, upd
 	} else {
 		res := t.main.Bridge.QueueRemoteEvent(t.userLogin, &simplevent.ChatResync{
 			EventMeta: simplevent.EventMeta{
+				Type:         bridgev2.RemoteEventChatResync,
 				PortalKey:    portalKey,
 				CreatePortal: true,
+				LogContext: func(c zerolog.Context) zerolog.Context {
+					return c.Str("tg_event", "updateChannel")
+				},
 			},
 			GetChatInfoFunc: func(ctx context.Context, portal *bridgev2.Portal) (*bridgev2.ChatInfo, error) {
 				chatInfo, mfm, err := t.wrapChatInfo(portal.ID, channel)
@@ -972,6 +985,9 @@ func (t *TelegramClient) handleTyping(portal networkid.PortalKey, sender bridgev
 			Type:      bridgev2.RemoteEventTyping,
 			PortalKey: portal,
 			Sender:    sender,
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "update*Typing")
+			},
 		},
 		Timeout: timeout,
 		Type:    typingType,
@@ -994,6 +1010,9 @@ func (t *TelegramClient) updateReadReceipt(ctx context.Context, e tg.Entities, u
 				SenderLogin: ids.MakeUserLoginID(user.UserID),
 				Sender:      ids.MakeUserID(user.UserID),
 			},
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "updateReadHistoryOutbox")
+			},
 		},
 		LastTarget:          ids.MakeMessageID(update.Peer, update.MaxID),
 		ReadUpToStreamOrder: int64(update.MaxID),
@@ -1007,6 +1026,9 @@ func (t *TelegramClient) onOwnReadReceipt(portalKey networkid.PortalKey, maxID i
 			Type:      bridgev2.RemoteEventReadReceipt,
 			PortalKey: portalKey,
 			Sender:    t.mySender(),
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "updateRead*Inbox")
+			},
 		},
 		LastTarget:          ids.MakeMessageID(portalKey, maxID),
 		ReadUpToStreamOrder: int64(maxID),
@@ -1208,6 +1230,11 @@ func (t *TelegramClient) onNotifySettings(ctx context.Context, e tg.Entities, up
 		EventMeta: simplevent.EventMeta{
 			Type:      bridgev2.RemoteEventChatInfoChange,
 			PortalKey: portalKey,
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.
+					Str("tg_event", "updateNotifySettings").
+					Time("muted_until", *mutedUntil)
+			},
 		},
 	})
 	return resultToError(res)
@@ -1244,6 +1271,11 @@ func (t *TelegramClient) onPinnedDialogs(ctx context.Context, e tg.Entities, msg
 			EventMeta: simplevent.EventMeta{
 				Type:      bridgev2.RemoteEventChatInfoChange,
 				PortalKey: portalKey,
+				LogContext: func(c zerolog.Context) zerolog.Context {
+					return c.
+						Str("tg_event", "updatePinnedDialogs").
+						Bool("pinned", true)
+				},
 			},
 		})
 		if err := resultToError(res); err != nil {
@@ -1264,6 +1296,11 @@ func (t *TelegramClient) onPinnedDialogs(ctx context.Context, e tg.Entities, msg
 			EventMeta: simplevent.EventMeta{
 				Type:      bridgev2.RemoteEventChatInfoChange,
 				PortalKey: portalKey,
+				LogContext: func(c zerolog.Context) zerolog.Context {
+					return c.
+						Str("tg_event", "updatePinnedDialogs").
+						Bool("pinned", false)
+				},
 			},
 		})
 		if err := resultToError(res); err != nil {
@@ -1287,6 +1324,9 @@ func (t *TelegramClient) onChatDefaultBannedRights(ctx context.Context, entities
 		EventMeta: simplevent.EventMeta{
 			Type:      bridgev2.RemoteEventChatInfoChange,
 			PortalKey: t.makePortalKeyFromPeer(update.Peer, 0),
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "updateChatDefaultBannedRights")
+			},
 		},
 	})
 	return resultToError(res)
@@ -1322,6 +1362,9 @@ func (t *TelegramClient) onPeerBlocked(ctx context.Context, e tg.Entities, updat
 		EventMeta: simplevent.EventMeta{
 			Type:      bridgev2.RemoteEventChatResync,
 			PortalKey: t.makePortalKeyFromPeer(update.PeerID, 0),
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "updatePeerBlocked")
+			},
 		},
 	})
 	return resultToError(res)
@@ -1358,6 +1401,9 @@ func (t *TelegramClient) onPhoneCall(ctx context.Context, e tg.Entities, update
 			PortalKey:    t.makePortalKeyFromID(ids.PeerTypeUser, call.AdminID, 0),
 			CreatePortal: true,
 			Sender:       t.senderForUserID(call.AdminID),
+			LogContext: func(c zerolog.Context) zerolog.Context {
+				return c.Str("tg_event", "updatePhoneCall")
+			},
 		},
 		ID: networkid.MessageID(fmt.Sprintf("requested-%d", call.ID)),
 		ConvertMessageFunc: func(ctx context.Context, portal *bridgev2.Portal, intent bridgev2.MatrixAPI, data any) (*bridgev2.ConvertedMessage, error) {
diff --git a/pkg/gotd/mtproto/conn.go b/pkg/gotd/mtproto/conn.go
index 2229bfd9..645a57ae 100644
--- a/pkg/gotd/mtproto/conn.go
+++ b/pkg/gotd/mtproto/conn.go
@@ -175,7 +175,7 @@ func New(dialer Dialer, opt Options) *Conn {
 // handleClose closes rpc engine and underlying connection on context done.
 func (c *Conn) handleClose(ctx context.Context) error {
 	<-ctx.Done()
-	c.log.Info("Connection context done, closing")
+	c.log.Info("Connection context done, closing", zap.NamedError("ctx_err", context.Cause(ctx)))
 
 	// Close RPC Engine.
 	c.rpc.ForceClose()
@@ -187,6 +187,8 @@ func (c *Conn) handleClose(ctx context.Context) error {
 	return nil
 }
 
+var errRunReturned = errors.New("Conn.Run() returned")
+
 // Run initializes MTProto connection to server and blocks until disconnection.
 //
 // When connection is ready, Handler.OnSession is called.
@@ -199,8 +201,8 @@ func (c *Conn) Run(ctx context.Context, f func(ctx context.Context) error) error
 		return errors.New("do Run on closed connection")
 	}
 
-	ctx, cancel := context.WithCancel(ctx)
-	defer cancel()
+	ctx, cancel := context.WithCancelCause(ctx)
+	defer cancel(errRunReturned)
 
 	c.log.Info("Run: start")
 	defer c.log.Info("Run: end")
diff --git a/pkg/gotd/telegram/client.go b/pkg/gotd/telegram/client.go
index 2b2f7cb2..5232020e 100644
--- a/pkg/gotd/telegram/client.go
+++ b/pkg/gotd/telegram/client.go
@@ -114,7 +114,7 @@ type Client struct {
 
 	// Client context. Will be canceled by Run on exit.
 	ctx    context.Context
-	cancel context.CancelFunc
+	cancel context.CancelCauseFunc
 
 	// Client config.
 	appID   int    // immutable
diff --git a/pkg/gotd/telegram/client_test.go b/pkg/gotd/telegram/client_test.go
index b3104040..5876d1ed 100644
--- a/pkg/gotd/telegram/client_test.go
+++ b/pkg/gotd/telegram/client_test.go
@@ -84,7 +84,7 @@ func newTestClient(h testHandler) *Client {
 		appHash:       TestAppHash,
 		conn:          &testConn{engine: engine, ready: ready},
 		ctx:           context.Background(),
-		cancel:        func() {},
+		cancel:        func(error) {},
 		updateHandler: UpdateHandlerFunc(func(ctx context.Context, u tg.UpdatesClass) error { return nil }),
 		onTransfer:    noopOnTransfer,
 	}
diff --git a/pkg/gotd/telegram/connect.go b/pkg/gotd/telegram/connect.go
index db7e2fd1..5dffc7e5 100644
--- a/pkg/gotd/telegram/connect.go
+++ b/pkg/gotd/telegram/connect.go
@@ -2,6 +2,7 @@ package telegram
 
 import (
 	"context"
+	"fmt"
 	"time"
 
 	"github.com/cenkalti/backoff/v4"
@@ -117,6 +118,8 @@ func (c *Client) resetReady() {
 	c.ready.Reset()
 }
 
+var errRunReturned = errors.New("Client.Run() returned")
+
 // Run starts client session and blocks until connection close.
 // The f callback is called on successful session initialization and Run
 // will return on f() result.
@@ -137,12 +140,12 @@ func (c *Client) Run(ctx context.Context, f func(ctx context.Context) error) (er
 
 	// Setting up client context for background operations like updates
 	// handling or pool creation.
-	c.ctx, c.cancel = context.WithCancel(ctx)
+	c.ctx, c.cancel = context.WithCancelCause(ctx)
 
 	c.log.Info("Client starting")
 	defer c.log.Info("Client closed")
 	// Cancel client on exit.
-	defer c.cancel()
+	defer c.cancel(errRunReturned)
 	defer func() {
 		c.subConnsMux.Lock()
 		defer c.subConnsMux.Unlock()
@@ -164,7 +167,7 @@ func (c *Client) Run(ctx context.Context, f func(ctx context.Context) error) (er
 	g.Go(func(ctx context.Context) error {
 		select {
 		case <-ctx.Done():
-			c.cancel()
+			c.cancel(fmt.Errorf("Client.Run group context done: %w", context.Cause(ctx)))
 			return ctx.Err()
 		case <-c.ctx.Done():
 			return c.ctx.Err()
diff --git a/pkg/gotd/telegram/migrate_to_dc_test.go b/pkg/gotd/telegram/migrate_to_dc_test.go
index 6310d787..02dbf785 100644
--- a/pkg/gotd/telegram/migrate_to_dc_test.go
+++ b/pkg/gotd/telegram/migrate_to_dc_test.go
@@ -112,7 +112,7 @@ func newMigrationClient(t *testing.T, h migrationTestHandler) *Client {
 		}),
 		newConnBackoff:   defaultBackoff(clock.System),
 		ctx:              context.Background(),
-		cancel:           func() {},
+		cancel:           func(error) {},
 		migrationTimeout: 10 * time.Second,
 	}
 	client.init()