vscodeからリモートSSHできない。

Question

以下のメッセージが表示され、リモートサーバにアクセスできなくなりました。
リモート拡張ホスト サーバーへの接続に失敗しました (エラー: Time limit reached)

teratermからは、接続することができます。
対応方法をご教示願います。

ちなみにlogにはエラーが表示されておりません。

[06:54:41.259] > 9ca9xxxxxxxx5: running
> 
[06:54:41.330] > Acquiring lock on /home/ec2-user/.vscode-server/bin/xxxxxxxxxxxxxxxxx4f7499b7af85b
> 3d05f9a6883a/vscode-remote-lock.ec2-user.xxxxxxxxxxxxxxxxx4f7499b7af85b3d05f9a6883
> a
> Found existing installation at /home/ec2-user/.vscode-server/bin/xxxxxxxxxxxxxxxxx
> 4f7499b7af8xxxxxxxx83a...
> Found running server...
> 
> *
> * Reminder: You may only use this software with Visual Studio family products,
> * as described in the license (https://go.microsoft.com/fwlink/?linkid=2077057)
> *
> 
> Checking server status on port 45995 with wget
> 9ca9xxx7425: start
> sshAuthSock====
> listeningOn==45995==
> osReleaseId==amzn==
> arch==x86_64==
> webUiAccessToken====
> tmpDir==/run/user/1000==
> platform==linux==
> 9ca911767425: end
> 
[06:54:41.331] Received install output: 
sshAuthSock====
listeningOn==45995==
osReleaseId==amzn==
arch==x86_64==
webUiAccessToken====
tmpDir==/run/user/1000==
platform==linux==

[06:54:41.333] Remote server is listening on 45995
[06:54:41.333] Parsed server configuration: {"remoteListeningOn":{"port":45995},"osReleaseId":"amzn","arch":"x86_64","webUiAccessToken":"","sshAuthSock":"","tmpDir":"/run/user/1000","platform":"linux"}
[06:54:41.337] Starting forwarding server. localPort 63061 -> socksPort 63057 -> remotePort 45995
[06:54:41.339] Forwarding server listening on 63061
[06:54:41.339] Waiting for ssh tunnel to be ready
[06:54:41.342] Tunneled 45995 to local port 63061
[06:54:41.342] Resolved "ssh-remote+ec2-123.com" to "127.0.0.1:63061"
[06:54:41.344] [Forwarding server 63061] Got connection 0
[06:54:41.369] ------
[06:54:41.403] [Forwarding server 63061] Got connection 1
[06:54:41.405] [Forwarding server 63061] Got connection 2
[06:57:41.321] > 

以下のサイトから３パターン試しましたが全てダメでした。
リンク内容

Ⅰ
In command pallet.
Type in 'clear'
Click on each one:
Search: Clear Search Results
Search: Clear Search History
Clear Editor History
Clear Command History

２
open network and Internet setting
then
off all toggles inside prox

３
C:\Users\USERNAME\AppData\Roaming\Code\User\globalStorage\state.vscdb
C:\Users\USERNAME\AppData\Roaming\Code\User\globalStorage\state.vscdb.backup
↓

C:\Users\USERNAME\AppData\Roaming\Code\User\globalStorage\state.vscdb-disabled
C:\Users\USERNAME\AppData\Roaming\Code\User\globalStorage\state.vscdb.backup-disabled