UPDATE: The Cosmote network has operational problems in various areas of Bucharest

  If you use the services of the mobile phone operator Cosmote, live in Bucharest and you have problems to access the network at the moment, well I inform you that certain technical problems could prevent you from doing so. It seems that the operator has some small operational problems, at least in Bucharest, but no official announcement was made by the people from Cosmote. Unfortunately, there is no method by which you can solve the problems and you have to wait for their technical teams to do their work, but you don't have to worry and think that the terminals have any operational problems.

UPDATED: And a statement from Cosmote regarding the problem.

Against the background of technical malfunctions, during today's day, in limited areas of the country, fluctuations in the use of data and voice services in the 3G spectrum could be experienced.
The technical teams worked non-stop, so that the optimal operating parameters were restored in a short time. We regret any inconveniences encountered.