Could you help me to solve the following problem? Motorola SBV6220 cable modem LINK light blinks BLUE or AMBER depending on connection between the modem and a computer. My computer has Realtek 10/100/1000Base-T Network Adapter (built into ASUS M4A785-M motherboard). That adapter had Speed & Duplex set to Auto Negotiation (Device Manager Menu). So, the LINK light on Motorola SBV6220 was BLUE after Optimum Online service activation. It remained BLUE when HP laptop was connected to the modem. Next day that light suddenly started to blink AMBER, which means I have 10/100Base-T connection. But nothing was changed in network/pc configuration and settings. Only the driver for Realtek Adapter was updated through Windows Update, which cause loosing internet connection. The Realtek Driver was rolled back, but LINK light didn't change. It remained AMBER. I've tried to set Speed & Duplex to 1 Gbps Full Duplex for Realtek Network Adapter with no result. Realtek Technical Support sad my settings are correct. Optimum Online Tech Support sad it depends on network cables I've connected between the modem and the computer. But I'm using original network cable that came with Motorola modem, and testing software showed nothing is wrong with it.
Because I don't believe in miracles and I want to understand what happened, I would appreciate your help in resolving this issue.
Thank you.