CP-7914 Expansion Module was connected by a long cable (not sure of the length) - RJ11 straight-through cable to the CP-7960G phone and the customer claims that this was working before and all of a sidden stopped working and the CP-7914 show all RED LEDs.
Anyway we sent a tech to site and while troubleshooting he used a short RJ11 (18 cms. long) cable and it all started working.
Is there a specification on the cable length that one can use with this device. Don't ask me why the customer is using a long cable and keeping the CP-7914 far away from the CP-7960G IP phone.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.