mts wireless oss problem?

na mestima gde mts daje signal
mada ping ok,maltene nikad ne radi surfovanje jer prebacuje na
https://oss.mts.telekom.yu/redirect/entry.jsp
(
i uz to ponekad
oss.mts.telekom.yu uses an invalid security certificate

The certificate is not trusted because it is self sign..)
u cemu je stos,treba nesto dodatno podesiti?
( zasto ne radi bez problema poput telenora)