Not a great start to the day for Cisco employees, many of which are struggling in the face of an internal IT outage.

The technology and networking giant confirmed in a tweet it was ” aware of some interruption” to its IT the mechanisms and is “working” on restoring the network.

Worse, the company’s corporate blog also went kaput. For a interval, Cisco’s blog was exposing the default WordPress install page. But at the time of publication, the blog had been restored.

Some patrons were unable to login through Cisco’s single sign-on. Others couldn’t access its downloads sheet , nor could they access the company’s learning portal. And, some were unable to access its security advisories. But some of Cisco’s services, such as Webex, did not appear affected by the outage.

It’s not immediately clear exactly what caused the outage. Cisco representative did not immediately respond to a request for comment.

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