Can´t connect to Threema Web

Hello,

After update to Threema 6.3 I can´t start a session on Threema Web. It shows that is connected by keep waiting and finaly do not start the session.

Trying to update to 6.3.1 and iOS to 18.0.1 but still no success. The debug log shows that the problem is Timeout on WebSockets connetion/response:

ValidationLogger:236 [Notice] [Threema Web] Scanned qr code
WCSessionManager:246 [Notice] [Threema Web] Connect to host saltyrtc-75.threema.ch; port: 443 selfHosted: 0; permanent: 0; version: 2
WCConnection:89 [Notice] [Threema Web] Salty Log: saltyrtc_client::crypto_types: Generating new key pair
WCConnection:89 [Notice] [Threema Web] Salty Log: saltyrtc_client::crypto_types: Generating new key pair
ValidationLogger:236 [Notice] [Threema Web] salty client init success
ValidationLogger:236 [Notice] [Threema Web] Start EventDispatchQueue
WCConnection:89 [Notice] [Threema Web] Salty Log: saltyrtc_task_relayed_data_ffi: Connection error: Network error: Could not connect to server (saltyrtc-75.threema.ch:443): WebSocketError: I/O failure: Operation timed out (os error 60)
WCConnection:538 [Err] [Threema Web] received event error
ValidationLogger:236 [Notice] [Threema Web] Connection ended with exit code 9

Please help,

Thanks