The high-profile troubles on the city of San Francisco's computer network continue, despite a dramatic jailhouse intervention by the city's mayor this week.

While the city has regained control of the five devices at the heart of its FiberWAN network, which carries data between city government buildings, administrators are still locked out of the city's VoIP system and LANs within the Sheriff's Department and the Recreation & Park Department. Assistant District Attorney Conrad Del Rosario revealed the ongoing problems Wednesday at a bail hearing for Terry Childs, the former network administrator with the city's Department of Telecommunications and Information Services (DTIS) who is accused of holding the city's networks hostage for the past 10 days.

During that time, the networks have functioned normally, but IT staffers have been unable to make administrative changes to some of the city's critical routers and switches. (Read what network administrators can do to thwart insider threats.)

Childs' attorney, Erin Crane, had moved for a reduction in the $5 million bail set in the case. San Francisco Superior Court Judge Lucy McCabe denied that motion Wednesday.

Childs' defense has portrayed him as a capable engineer, surrounded by incompetent management, who simply didn't trust anyone with the administrative passwords to the five network devices at the heart of the FiberWAN. On Monday, Childs had a secret meeting with San Francisco Mayor Gavin Newsom where Childs turned over the passwords.

Del Rosario argued against any reduction of bail, noting that Childs handed over the passwords only after a scheduled July 19 power outage at the city's One Market Street data center failed to take down the FiberWAN. Because Childs did not store network configuration files on the routers' hard drives, a power outage would wipe this information out of memory, disabling the network until it was reconfigured, he said.

The assistant DA said it was "extremely suspicious" that Childs only communicated with the mayor after the network did not go out of service.

In court filings, prosecutors say they do not know where these critical router configuration files are located.

As the city's principal network engineer, Childs worked on about 1,100 networking devices throughout the city, Del Rosario said. Even with the FiberWAN passwords, there are still questions about the rest of these systems. "We do not know whether we have control of these devices," he said.

The IDG News Service is a Network World affiliate.