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    MiFi 4510L gets stuck in "dormant" state

    nsayer

      Firmware v2.23 is far and away better than the older firmware, but still, once or twice a week, the device will fail. The symptoms:

       

      1. WiFi is still connected, but any data I/O simply hangs.

       

      2. vz.hotspot responds, and shows the connection state correctly, except that it is "dormant."

       

      Hitting "Disconnect" waiting and then hitting "connect" works around the problem and brings the connection back up.

       

      The "dormant" state is not sufficient to identify this problem - the mifi connection is often dormant, but when you start doing something, it typically "un-dormants" itself and operates normally. Only sometimes - once or twice a week for me - does it wind up in a state of semi-permanent dormancy.

        • 1. Re: MiFi 4510L gets stuck in "dormant" state
          John Getzke

          Hello,

           

          Check your diagnostics log the next time you notice the problem.  Check for any disconnection events that might identify a glitch in the connection.  Sometimes the MiFi will be able to identify a problem with the network and display it in that area.  Your feedback on the ability to hit "Connect" and "Disconnect" to resolve the problems seems to point us in this direction.

           

          Also, share with us your signal strength when the problem happens.  Something may be interfering with your connection that intermittently disconnects/ties you up.  Good 3G signals are -80 dB or lower.  An antenna or booster may be able to help you if your signal strength is higher than that.

           

          You are correct when you say that the "Dormant" state is not sufficient to iden. the problem.  But for now we do not have a better term for this symptom so I understand where you are coming from. 

          • 2. Re: MiFi 4510L gets stuck in "dormant" state
            nsayer

            John_Getzke wrote:

            Hello,

             

            Check your diagnostics log the next time you notice the problem.  Check for any disconnection events that might identify a glitch in the connection.  Sometimes the MiFi will be able to identify a problem with the network and display it in that area.  Your feedback on the ability to hit "Connect" and "Disconnect" to resolve the problems seems to point us in this direction.

             

            Also, share with us your signal strength when the problem happens.  Something may be interfering with your connection that intermittently disconnects/ties you up.  Good 3G signals are -80 dB or lower.  An antenna or booster may be able to help you if your signal strength is higher than that.

             

            You are correct when you say that the "Dormant" state is not sufficient to iden. the problem.  But for now we do not have a better term for this symptom so I understand where you are coming from. 


            I'll check the diagnostic log next time. I've seen the log (I have it enabled), but it didn't occur to me to look at it.

             

            Since I didn't look at the log, I don't have signal numbers, but I almost never see anything less than 4 bars. I don't really recall this being associated with a lack of a strong signal. Even the 2G network on my iPhone is virtually always 4 or 5 bars around here (Silicon Valley). I don't have a consistent location where this happens. I think it has happened most on CalTrain, but then, I mostly use the MiFi on CalTrain, so that doesn't say a lot.

             

            The only other kind of event I can recall since upgrading to 2.23 was the LTE outage a few days ago, but that's not worth bringing up.

            • 3. Re: MiFi 4510L gets stuck in "dormant" state
              nsayer
              It may or may not have happened again this morning. I captured the logs, but after I did so, I checked it and the connection had come back. Looking at the log after that showed nothing more than the usual into and out of Dormant state messages.

              Here's what I captured:
              System Status
              System Log> HTML Version 26. 
              12/14/11 08:09:52am> Current Time
              12/14/11 08:09:44am> LTE in Dormant State
              12/14/11 08:09:31am> First opening Index.html
              12/14/11 08:09:27am> NWPM_EVENT_CALL_CONNECTED
              12/14/11 08:09:27am> LTE Connected
              12/14/11 08:09:17am> LTE Connection Failed
              12/14/11 08:09:06am> LTE Connection Failed
              12/14/11 08:08:55am> LTE Connection Failed
              12/14/11 08:08:42am> [DHCP] Assign IP 192.168.1.2  Xx:xx:xx:xx:xx:xx
              12/14/11 08:07:35am> WMS IMS registered
              12/14/11 08:07:18am> SIM Ready
              12/14/11 08:07:18am> NWPM_EVENT_SIM_READY
              12/14/11 08:07:14am> Start AP with battery
              12/14/11 08:07:14am> NWPM_EVENT_MODE_ONLINE


              MDN: xxxxxxxxxx
              MEID: Blah blah
              Channel: 0
              P_REV Indicator: 6
              PRL ID: 15041
              Band Class Type: LTE BAND13
              ERI Version: 4
              Dormancy: FALSE
              Signal - EVDO: Not Available
              Signal - 1X: Not Available
              Signal - LTE: -63 dBm
              SINR - LTE: 19 dB
              Battery Level: 4
              Battery Charging: 0
              Ec/Io : 19 dB
              • 4. Re: MiFi 4510L gets stuck in "dormant" state
                John Getzke

                What you captured here is a disconnection event from the LTE network.  It looks like the device was able to recover on its own after about 30 seconds.  Doesn't surprise me if you noticed your device was not working during that time.  Browsing would have been able to recover but streaming content/VPN's would have been broken.  The logs are consistent with what you have described so far.

                 

                I'm thinking this is more of a network problem but we cannot really be sure.  A device failure could have happened on your SIM card in which case resetting should resolve or show signs of improvement.  Network failures would have to be corrected by Verizon.  The towers in the area may not be transferring you over correctly as you roam about.  You could also be drowned out by other users as the towers prioritize other traffic over your own.  Would you happen to be in a highly congested wireless area when this happened such as a coffee shop, airport or office building?

                 

                Your LTE signal strength at the time of this log looks to be good so I dont think that would be an issue.  Your MiFi must have 3G disabled because it is not reporting a statistic for EVDO.  SINR is the interferance in the area, mine is normally around 30dB but I am also not in a 4G area.

                 

                Keep logging for us and see if there are any consistencies.

                • 5. Re: MiFi 4510L gets stuck in "dormant" state
                  nsayer
                  I don't have CDMA disabled. I have noted that you always get "not available" for the SS for the connection mode you aren't using.
                  • 6. Re: MiFi 4510L gets stuck in "dormant" state
                    nsayer

                    I caught it doing it again this afternoon. The log says nothing unusual; the last thing before the top is that it entered the Dormant state. The LTE signal strength is -63 dBm, which ought to be plenty.

                     

                    And this time it didn't recover on its own. I had to perform a disconnect/connect cycle from vz.hotspot.

                     

                    It's getting super, super annoying.

                    • 7. Re: MiFi 4510L gets stuck in "dormant" state
                      ocean_pilot

                       

                      You can say that again.

                       

                      How's that saying go "america's most reliable network"?

                       

                      I'm coming to the conlusion that this sort of thing with the 4510L (as well as their smart phones) is LARGELY a network and/or bandwidth problem and verizon knows full well what causes these kinds of  problems but just isn't about to admit the real reasons.

                       

                      Fast rollouts of new technology always does.

                       

                      An let's face it .... it's the American way!

                       

                      Otherwise, they would lite a fire under their hardware provider to FIX the hardware internal software and do it NOW, or we're gonna cancel you and quit selling your product.

                       

                      It's taken what ..... 7 months to get to the current version 2.23 and it still has obvious problems, including primitive, error prone upgrade procedures.  Verizon's taking ownership of customer problems with hardware they sell is disgraceful.  Just look at the blog.

                       

                      I assume it has been noted the recent purchase of added spectrum from three cable companies.  Uh Huh.

                       

                      The chincy 5 and 10 gig data plans with absurdly expensive pricing for them for the 4510L  will probably send me back to cable when my contract expires.

                       

                      Life's too short.

                       

                       

                      Cheers ....

                       

                      • 8. Re: MiFi 4510L gets stuck in "dormant" state
                        nsayer
                        Happened again this morning. Nothing in the log other than LTE in dormant state. Dis- and re-connect brings it back. Seems like it's happening more often. It's not happening in what I would consider to be an overburdened area. Basically, it's the heart of suburbia in Silicon Valley this time - Southeast Santa Clara.
                        • 9. Re: MiFi 4510L gets stuck in "dormant" state
                          John Getzke

                          We might have reached the limits of public troubleshooting then.  If the device is no longer recording or detecting the disconnection event then it will be very difficult to move forward.  Without a window into the device to see what its doing we really wont know what the problem is or how to correct it.

                           

                          I would keep logging the disconnects for a week or two.  Take note of the time, location, and what you were doing at the time of the problem.  After you reconnect you could also try running a site survey tool to see if there are any competing wireless signals in the area.  I like to use the one provided by meraki:

                          http://tools.meraki.com/stumbler#q=

                           

                          If the problem is a deal breaker atleast you have a running log of the disconnection events and can try for reimbursement.  I have seen some threads where users successfully recieved reimbursement for these devices, but I can only speculate as to what they needed to provide for Verizon to agree to it.  Logging and detailing the problems makes the most sence to me. 

                           

                           

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