Does anyone know which script can simply “open” specific url, and enter username and password as logon…
For example to open this address: https://www.changeip.com/update.asp?u=&cmd=update&set=1&offline=0
Looks like that is basic auth.
https://username:password@www.changeip.com/update.asp?u=&cmd=update&set=1&offline=0
If you have any weird characters in the username or password base64 encode them first. There are online converters.
Thx for your answer, but when I insert this line in script, nothing happens 
Do I have to make some command first, like open:url or something similar?
Use the /fetch tool to load a URL.