Teamspeak does not update

I have two computers and I have Teampseak 3 in both. Both computers run under windows 10 64 bits. In one of them the TS client has been updates flawlessly to version 3.5.6 while the other keep asking me every morning if I want to update to that version but once finish downloading, nothing happens and still keeps 3.5.5. This is not a problem because it still works, but I am a bit worried there is a bigger problem somewhere.

I replay to myself… it was the antivirus. Karspersky did not allowed me to update. I paused the protection and it worked.