An Updated List of Areas where Verizon Express
Network 1XRTT/EvDO Services Regularly Experience Service Difficulties
Last Update: 03/21/2008
This list is intended to provide a consolidated state-by-state reference
to a series of posts, messages, and other observations as to dropped data
calls and/or forcefully reset 1XRTT/Express Network Connections Verizon's
data service areas in the US.
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Classification of 1XRTT Drops:
We've identified three types of drops
with Verizon's 1XRTT Express Network Service, which are:
A number of other problems which are unique to Verizon's wireless data
network are:
EvDO-specific Issues:: Although Verizon as of late 2006
seems to have a better handle on the 1XRTT drop issues and many are being
fixed as the CDMA-based data network expands, similar issues and
difficulties seem to be appearing with the implementation of the
higher-speed EvDO and EvDO Rev.A services throughout Verizon's data
service areas.
This list tends to call these EvDO issues "Cycle" issues. "Cycle Areas",
as per area not drops per se, that is, the connection is not torn down
requiring a manual re-connect, but instead an area where the transition
from 1XRTT to/from EvDO does not occur "smoothly", causing connections to
"hang" either for more than a momentary period (at best) or to completely
time out (at worst). In such cases, telnet/SSH/SSL and other ongoing
connections will need to be re-established, as well as downloads,
streaming audio and video, etc. Again, the EvDO/1XRTT software does not
disconnect, but the extended delay in cycling "up" from 1XRTT to EvDO or
cycling "down" from EvDO to 1XRTT, during which time data does not seem to
pass, results in established TCP/IP connections being lost.
We are assuming that this is part of the debugging and initial
implementation of the EvDO system, and that as soon as EvDO is
universally implemented a lot of these "cycle" issues will go away.
However, after two years (almost) of EvDO service, many of these issues
remain, and the EvDO service seems too "delicate" and "fussy" compared to
the 1XRTT service (and hence we do not yet use EvDO for any mobile
application) or the much more robust (and now gone :( ) CDPD service.
EvDO Cycle Area drops are detailed in the EvDO
Cycle section of this list.
Overall, this list will hopefully serve as a central source where such
drop information may be collected, posted, and utilized in furtherance of
future service improvements by Verizon.
For a complete discussion of these 3 types of drops, see the full June 15, 2003 Update
Unlike the 1XRTT drop issues (top) and the following list of ongoing
problems, these dynamic IP, 24-hour disconnects, and short timeout window
issues are not covered on this list as Verizon does not
feel these are issues they wish to resolve and intends to maintain them as
they currently are. They are systemic through the Verizon data network so
there is no need to iterate them on a state-by-state basis; they happen
everywhere all the time.
The criteria for a drop being "worthy" :) of getting posted are:
States and areas where these three EvDO-specific issues occur are listed
in the EvDO Cycle Drops section.
Ordering Note: Lists proceed from north
to south. As coverage while driving is based on roads
which often cross state boundaries, we needed to choose some order of
presentation, and we opted for north to south, and then east to west.
Thus, similar to the Federal Highway numbering system (e.g., "US-1, US-2,
US-99, US-101, etc.), states in the Northeast start the list, and states
in the West/Southwest are located towards the end.
Please feel free to submit your drop/reset experiences with Verizon which
meet the above guidelines so that we can provide a more comprehensive list.
Additionally, if you feel that an item is incorrect, please let us know the
specifics of your experiences in the given area so we can test it and modify
the list accordingly.
Thanks!
Disclaimer/Note: The authors have nothing to do with
Verizon other than using a few of their phones and/or data products as
paying subscribers. While we will try to keep these lists current,
you should test them out for yourself and not use this as a dispositive and
authoritative source of information as to Verizon's cellular service (or
lack thereof). In other words, these are just our and/or other's
observations -- we try to be accurate, but we make no representations other
than what we have observed (and if others notice we are wrong about a given
drop, please mail us so we can test the drop and modify the list
accordingly.)
Rhode Island
Connecticut
New York
New Jersey
Pennsylvania
Maryland
Washington DC
Virginia
Georgia
Florida
EvDO Cycle areas
"Cycle Areas", as per the discussion in the General/Background Section, area not drops per se,
that is, the connection is not torn down requiring a manual re-connect,
but instead an area where the transition from 1XRTT to/from EvDO does not
occur "smoothly", causing connections to "hang" either for more than a
momentary period (at best) or to completely time out (at worst). In such
cases, telnet/SSH/SSL and other ongoing connections will need to be
re-established, as well as downloads, streaming audio and video, etc.
Again, the EvDO/1XRTT software does not disconnect, but the
extended delay in cycling "up" from 1XRTT to EvDO or cycling "down" from
EvDO to 1XRTT, during which time data does not seem to pass, results in
established TCP/IP connections being lost.
New Jersey
Corrected Problems
The following were problem drop areas but have apparently been
corrected and/or no longer suffer from regular/repeated drops.
Connecticut
Contacting WirelessNotes.org
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Last modified 03/21/2008
In terms of EvDO "Cycle Areas" or "Cycle Drops", we have noticed three
general categories of EvDO drop and service interruptions, and thus the
criteria for an EvDO issue to be included in the EvDO-specific list are listed below:
Verizon Cellular Dropped/Reset 1XRTT/Express Network Session List by State
Maryland
New York
New Jersey
Maryland
Florida