Server seems to lose frames when using the Basic256Sha256_SignAndEncrypt policy

[alberis96]

Hi, I'm implementing an OPC UA Server and it has been working fine when using the NoSecurity policy but it seems to have some problems when using the Basic25Sha256_SignAndEncrypt.
From what I found it seems that some of the operations from the client time out making it lose connection. The server seems to be alive still when this happens but it makes the client lose connection and having to reconnect to keep it going.
Maybe implementing some timeouts in the server if this policy is established could work, but I'm not really sure how to do that.
I'm still new in the OPC UA world so any help will be appreciated.

[oroulet]

use async-opcua. not that depcrecated repo