Can't Change UDP Port

[SWAT - FireBlade]

I loged in as super admin
I try too change my port: 8767 too 20045
Then clicked saved....
Then I got this
if you want to edit udpport, please stop first the server

Now how the heck do you do that?
I mean if I stop the server I have no access to the website as it only runs when the server is running.
DID I miss something???

PLEASE HELP

[m&m's]

I loged in as super admin
I try too change my port: 8767 too 20045
Then clicked saved....
Then I got this
if you want to edit udpport, please stop first the server

Now how the heck do you do that?
I mean if I stop the server I have no access to the website as it only runs when the server is running.
DID I miss something???

PLEASE HELP

log in to the webadmin then click on "servers" new page/ stop the server from hear , then go make your changes ! save then back to "servers" page restart server ....