Unfortunately even MSNP11 protocol isn’t working. MSNP21 is letting me login but it shows everyone offline and the connection drops after a bit because there was no ping response. Msnp15 is ineffective at 100% as well
Unfortunately I can do nothing because the application was made available working, both versions.
The problem on MSNP11 started after the big crash it had a few years ago when it came back, the application was no longer coming.
About MSNP15, I believe something has changed on the server that the application did not like. Someone who manages the server would have to work with the application to understand it better. (It’s an old app from 2010-2011, not made for recent android versions.)