503 Service Unavailable

[n3tm1n]

Attempted to log on 6600 Switch today via web browser and received a 503 Service Unavailable error. This is the first time I have received this error on this switch. Some details:

Switch Type: 6600 Switch

Firmware: K15.10.0009

Configured as:

No Web-Mangagement

Web-Management SSL

I can access the switch via:

PCM (with exception of live view)

Putty SSH

Initial general info on 503 web errors is that the device is over saturated.

According to PCM, the switch is barely utilized.

Please adivse.

Also,

I do have a second  6600 switch with same firmware and similar configuration that is not exhibiting this problem.

[n3tm1n]

Problem resolved. Issue was cause due to the NTP server address was not longer valid. Once changed, access to GUI resumed.