I have an ERS-8610 ITN with a GBIC GIG Blade in the 3rd slot in the chasis. With some switches around the facility, the connectivity is lost on the GIG blade ports sparatically. I have to go into Device Manager and disable and re-enable the port on the ITN to regain connectivity. Is there something that is triggering the loss of connectivity? Maybe packet loss or some setting in the ITN that stops the flow of traffic if something is found on the network? Maybe some sort of security feature? Please let me know if you have any idea what this may be caused by and also if you need more information. Thank you.