Scartel, operating under its Yota brand, has disabled the first LTE network in Russia just three days after its launch in Kazan, reports LTE World. Denis Sverdlov, Scartel’s General Director, is reported as saying that the company shut off its network for engineering works, without divulging the exact nature of the problem. This new setback is the latest in a long line of hurdles that have come close to derailing Yota’s LTE ambitions. In June, Russian regulator Roskomnadzor announced that Yota could not provide LTE connections under its existing licence, because the licence was issued solely for the provision of WiMAX services, but later backed down. In August Roskomnadzor denied Scartel permission to use some of the frequencies issued to it. The frequencies, 20MHz-30MHz in the 2.5GHz-2.7GHz band, were revoked due to an unspecified ‘violation of the law’. According to TeleGeography’s GlobalComms Database, 147 LTE base stations have been built, at an estimated cost of USD20 million. Yota reportedly achieved download speeds of between 10Mbps and 30Mbps during its testing phase.