I've opened the ports mentioned but I can't figure out what else to do with a Zyxel C1100Z modem from Centurylink. I tried calling their technical support today and they couldn't figure it out either. The ISPec on the Network Extender Admin says not reachable. Anyone else been able to figure this out?
On step 9 the MAC address of the unit is being rejected by Verizon. This is an error on Verizon's network and there is nothing you can do about it. We know this because we have talked to a Level 2 technician who explained that the MAC addresses of these units cannot be entered into Verizon's system for some unknown reason. They are working on it and promised to call me back when the issue is fixed. I will be amazed if they actually do call back.
Had the same problem initially setting up my Network Extender. Spoke to Verizon support this morning (9/22/2016). Mitch said he didn't know what the problem was, but looked it up. It was his first time setting up one of these devices. It was the MAC ID. It needed to be entered into their system. Once done, the Extender powered up, connected, and I am seeing 4 bars on my phone. Oh, and in 15 minutes I saved a lot of money with Verizon, he also identified a plan adjustment that saved me about $80 per month.
Very happy with Verizon support this morning.
I was able finally to get mine activated yesterday (9/26/16) after calling VZW and having the MAC added to my acct.
Seems like this issue may finally be resolved