This is a default, that is probably getting inherited from the default group policy if you didn't set it on the group policy attached to the vpn. You can check this:show run all group-policy <vpns group policy>If you don't find " vpn-idle-timeout " a...

Can you please post a sanitized config? Also can you show it working on your client and the client that is not, from both the client side and the ASA?

What are you trying to ping specifically? A host or an interface on the vpn device? What type of device is it?

Under the group policy associated to the vpn tunnel, can you try changing the idle timeout value and also the maximum connect time?

If I'm understanding you correctly, you're saying if traffic sourced from 33.33.33.33 destined to 1.1.1.1 on port 443, then translate 1.1.1.1 to 172.10.10.1 and 443 to 300 object network 33.33.33.33-obj host 33.33.33.33 object net...