vscodeからリモートSSHできない。

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。

log
1[06:54:41.259] > 9ca9xxxxxxxx5: running
2> 
3[06:54:41.330] > Acquiring lock on /home/ec2-user/.vscode-server/bin/xxxxxxxxxxxxxxxxx4f7499b7af85b
4> 3d05f9a6883a/vscode-remote-lock.ec2-user.xxxxxxxxxxxxxxxxx4f7499b7af85b3d05f9a6883
5> a
6> Found existing installation at /home/ec2-user/.vscode-server/bin/xxxxxxxxxxxxxxxxx
7> 4f7499b7af8xxxxxxxx83a...
8> Found running server...
9> 
10> *
11> * Reminder: You may only use this software with Visual Studio family products,
12> * as described in the license (https://go.microsoft.com/fwlink/?linkid=2077057)
13> *
14> 
15> Checking server status on port 45995 with wget
16> 9ca9xxx7425: start
17> sshAuthSock====
18> listeningOn==45995==
19> osReleaseId==amzn==
20> arch==x86_64==
21> webUiAccessToken====
22> tmpDir==/run/user/1000==
23> platform==linux==
24> 9ca911767425: end
25> 
26[06:54:41.331] Received install output: 
27sshAuthSock====
28listeningOn==45995==
29osReleaseId==amzn==
30arch==x86_64==
31webUiAccessToken====
32tmpDir==/run/user/1000==
33platform==linux==
34
35[06:54:41.333] Remote server is listening on 45995
36[06:54:41.333] Parsed server configuration: {"remoteListeningOn":{"port":45995},"osReleaseId":"amzn","arch":"x86_64","webUiAccessToken":"","sshAuthSock":"","tmpDir":"/run/user/1000","platform":"linux"}
37[06:54:41.337] Starting forwarding server. localPort 63061 -> socksPort 63057 -> remotePort 45995
38[06:54:41.339] Forwarding server listening on 63061
39[06:54:41.339] Waiting for ssh tunnel to be ready
40[06:54:41.342] Tunneled 45995 to local port 63061
41[06:54:41.342] Resolved "ssh-remote+ec2-123.com" to "127.0.0.1:63061"
42[06:54:41.344] [Forwarding server 63061] Got connection 0
43[06:54:41.369] ------
44[06:54:41.403] [Forwarding server 63061] Got connection 1
45[06:54:41.405] [Forwarding server 63061] Got connection 2
46[06:57:41.321] > 
47

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