Update service just doesn’t seem to work

Trying to ping a bunch of sites but it just doesn’t work. I’m probably doing something wrong but I just can’t seem to figure out what!

I’m trying to ping the following but none of them seem to recieve my pings:

https://rpc.twingly.com/
https://nyligen.se/ping/
https://rpc.pingomatic.com/
https://www.nybloggat.se/ping/utan_kategori/
https://ping.bloggnytt.se/
https://blogsearch.google.com/ping/RPC2/
https://ping.feedburner.com/
https://www.nyhetsfilter.se/ping/
https://rpc.technorati.com/rpc/ping/
https://ping.bloggnytt.se/
https://search.tailsweep.com/xmlrpc.do/
https://www.nybloggat.se/ping/hobby/
https://ping.bloggportalen.se/BlogPortalPing/ping/31998/2918060/

I mean none of them!

Needless to say I have the following privacy setting “I would like my blog to be visible to everyone, including search engines (like Google, Sphere, Technorati) and archivers”.

Have tried everything I know how to without success. The problem is most likely an easy one but with my limited knowledge I can’t figure out what’s wrong.

Any suggestions would be greatly appreciated!

(Have another blog that pings the exact same sites without any problem. The version of that blog is 2.0.11)