I believe I have found the cause of the Network Extender problems surfacing in July, 2011. I am a customer who has been out of Network Extender usage for two weeks now. Read on....
Unbelievably, almost no one at Qwest, Verizonwireless, or Samsung (NE's manufacturer) has any idea what the cause is and neither Qwest nor Samsung knows that a problem exists at all.
After many hours on the phone to all three companies I finally believe I know the cause of the problem. The cause is an updated firmware revision that was pushed to all Qwest customers who use the Actiontec PK5000 modem/router. They have been pushing it out over the last few weeks, so the symptoms have been rolling rather than happening all at one time.
The latest version of the PK5000 firmware is QAP002-3.60.3.0.9.9 When the customer's modem receives that version update (unbeknownst to them), Network Extender is rendered inoperable... the modem does not recognize the NE is plugged into it and does not provide an IP address. The WAN light goes solid red, the GPS goes magenta and the SYS light goes red.
Because Qwest's PK5000 works fine with the upgrade (i.e. both wi-fi and ethernet connections work fine with my Macintosh MacBook Pro), they have no interest in solving my VerizonWireless problem.
Bottom line is VerizonWireless needs to get a patch created "yesterday" and made available to all Network Extender customers who use the Actiontec PK5000 Qwest modem/router immediately. I live in a rural area and despite the fact I've had a VerizonWireless cell phone for many, many years, I'll be forced into changing cell phone providers soon, as will every other NE user who has lost their NE usage because of this problem.
It boggles my mind that no one has figured this out and provided a patch for the Network Extender. Understandably, Qwest could care less this is happening, since their service is not effected. This is truly VerizonWireless' problem.
Now, what can you do??? Call customer service right now and get technical support. Give them the information above and let them know they need to develop a patch for the Network Extender to work with the new firmware (i.e. operating system) of the Actiontec PK5000 modem. It's only when they hear from a bunch of people that they will step up the urgency to find a solution. Thanks!