cannot open the file from attachments (tickets)
Yes but not IE, not supported anymore.
I don't know how much control you have but you could try changing the registration of the DNS Servername in Setup > General > Option > DNS Servername to the actual IP address of the Server to see if that makes a difference.
Would require a restart of WHD Services again.
WHD version, are you using HTTPS or HTTP, is this from an E-Mail link? Is the user a registered Client on WHD?
It's HTTPS with a red line.
our version is 12.7.9 - Build #12.7.9.8603
yes, it's registered under the client.
actually, when I open the attachment from the ticket, it shows like a picture as I shared
psbexcvm01:8081/.../download
The 8081 Port signifies HTTP Port, do you force HTTPS within Setup > General > Server Options > redirect HTTP Request to HTTPS ?
Is the machine psbexcvm01 resolvable from the Client machine ?
this is setting
No sure..
In that setup screen toggle on the Redirect HTTP Requests to HTTPS.
Within Setup > General > Options > Force HTTPS = Always
i already click it
Then perhaps it is the server name it has an issue with. On the Client machine if you bring up the command prompt, can you "ping psbexcvm01" ?
yes can ping.
its our server
Did you set this?
And restart the Web Help Desk services?
yes. let me try now and restart it now
after restarted, still cant opens it.