As we need a connection to the office, we requested an internet speed upgrade. The speed was upgraded but the modem did not support this speed. While we already pay for a high speed, we were waiting a new modem. The technician came to the house and gave us combined modem/router. It took us few days with our IT specialist (paid by us) to understand that a combined modem blocked VPN connection. After a lengthy discussion with Optimum, we were advised to buy our own modem and use an existing router. It took a few days to arrive and now the optimum does not see our router. Again we are not able to use VPN. When we try to go to router settings, we got a message "Sorry, we're having trouble accessing your router settings". For 3 days I was promised by optimum to correct this error, as I was assured that the error is Optimum's but still no answer. Moreover, the reps hung up on me. I am not able to work and need to look for a different provider.