Yesterday afternoon, the instant messaging software MSN experienced login failures. Numerous netizens in Beijing, Shanghai, Ningbo, Tianjin, Qingdao, Zhejiang and other areas complained that they were unable to log in to MSN normally. Even if they could log in, the service was unstable, with intermittent interruptions. China Telecom and China Unicom (600050, stock bar) issued announcements confirming that the MSN service disruption was related to the interruption of submarine cables.