Strange Connectivity Problem- Totally Stumped

Hey Guys!
Alright, I'm completely stumped and beginning to get very frustrated. Maybe you can figure it out.
I can't access my school's online learning website from my internet at home. My roommates can- one has a MacBook, one has a PC. If I try to access it on any other network, I can just fine. But, when I take the ethernet cable out of the router at home and plug it directly into my computer, I can access the website. On occasion I will be able to go on to the website, but it always seems to be around 3 AM or later, never during a normal time. I've tried doing a bit of troubleshooting on the internet connection and the router, nothing is making sense.
I have a MacBook Pro and a Belkin router.
Anyone have any ideas? :\

AlanaS wrote:
Hey Guys!
Alright, I'm completely stumped and beginning to get very frustrated. Maybe you can figure it out.
I can't access my school's online learning website from my internet at home. My roommates can- one has a MacBook, one has a PC. If I try to access it on any other network, I can just fine. *But, when I take the ethernet cable out of the router at home and plug it directly into my computer, I can access the website.* On occasion I will be able to go on to the website, but it always seems to be around 3 AM or later, never during a normal time. I've tried doing a bit of troubleshooting on the internet connection and the router, nothing is making sense.
I have a MacBook Pro and a Belkin router.
Anyone have any ideas? :\
I high lighted the clue in your post. Your ISP modem likely assigned one IP Address to the first device it sees connected to it and caches the mac address of this device. In your case the first device was your computer. So when you connect your computer to the modem with the Ethernet cable the modem recognizes it. Then when you replace the computer by connecting the router to the modem the modem does not recognize the mac address of the router so does not assign it an ip address. Try shutting everything down, power off the modem, power up the modem, power up the router, then power up the computer. See if that works.
You did not mention if it is just this web site that does not work or if all web sites do not work. My response assumes you have no web access when you observe this issue.

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Copyright (c) 1991, 2004, Oracle. All rights reserved.
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(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC))
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Copyright (c) 1982, 2004, Oracle. All rights reserved.
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from posttown_boundaries;
ORA-13199: the given geometry cannot be rectified
ORA-06512: at "MDSYS.MD", line 1723
ORA-06512: at "MDSYS.MDERR", line 17
ORA-06512: at "MDSYS.SDO_UTIL", line 716
ORA-06512: at "MDSYS.SDO_UTIL", line 770
ORA-06512: at line 1
13199. 00000 - "%s"
*Cause:    This is an internal error.
*Action:   Contact Oracle Support Services.
I've tried various threshold and tolerance values ( the only threshold value that works is 0 which returns the same geometry.
I have successfully used the sdo_util.simpify functions on the other spatial objects in the database so I don't believe it to be a database setup issue.
When I run a validate geometry on the table for the geometry column I get the ORA-13029: Invalid SRID in the SDO_GEOMETRY object.
However, as explained above the SRID was selected and checked using calculate MBR and it matches exactly what I would have expected given the source data and i have not found any other issues with the SRID.
The error can be reproduced without any of the source tables by just taking one small polygon definition as follows:
select sdo_util.simplify(
MDSYS.SDO_GEOMETRY(
2003,7405,NULL,MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
MDSYS.SDO_ORDINATE_ARRAY(407207.997315803,287087.001455892,
406802.999914517,286916.000404434,
406677.996543163,286831.004734191,
406518.001132497,286741.000497636,
406863.996876543,286566.000590838,
407284.000289033,286672.000248752,
407207.997315803,287087.001455892))
,5,0.005)
FROM dual;
ORA-13199: the given geometry cannot be rectified
ORA-06512: at "MDSYS.MD", line 1723
ORA-06512: at "MDSYS.MDERR", line 17
ORA-06512: at "MDSYS.SDO_UTIL", line 716
ORA-06512: at "MDSYS.SDO_UTIL", line 770
ORA-06512: at line 1
13199. 00000 - "%s"
*Cause:    This is an internal error.
*Action:   Contact Oracle Support Services.
Am totally stumped with this!
Can anyone offer any thoughts or guidance?
Many thanks in advance.
Mike.

Hi Mike,
Usually someone jumps in early with the "geometry ain't valid" answer so I am late to the party. When I attempt to validate your 7405 geometry using 11gR2, I receive back error 13029.
SELECT
SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(
   MDSYS.SDO_GEOMETRY(
      2003,
      7405,
      NULL,
      MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
      MDSYS.SDO_ORDINATE_ARRAY(
         407207.997315803,287087.001455892,
         406802.999914517,286916.000404434,
         406677.996543163,286831.004734191,
         406518.001132497,286741.000497636,
         406863.996876543,286566.000590838,
         407284.000289033,286672.000248752,
         407207.997315803,287087.001455892
   0.005
FROM
dualThe error indicates that SRID 7405 "is invalid" which is not really all that informative. As you note above 7405 exists in MDSYS but its marked as a COMPOUND CRS which to keep it simple is a 3D CRS.
(see http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28400/sdo_cs_concepts.htm#autoId18)
Thus "invalid" in this context means the SRID is invalid for the geometry you are putting it upon.
So if we just add a Z to your geometry everything works hunky-dory
SELECT
SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(
   MDSYS.SDO_GEOMETRY(
      3003,
      7405,
      NULL,
      MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
      MDSYS.SDO_ORDINATE_ARRAY(
         407207.997315803,287087.001455892,0,
         406802.999914517,286916.000404434,0,
         406677.996543163,286831.004734191,0,
         406518.001132497,286741.000497636,0,
         406863.996876543,286566.000590838,0,
         407284.000289033,286672.000248752,0,
         407207.997315803,287087.001455892,0
   0.005
FROM
dualAnd your SIMPLIFY task also then works fine
SELECT
SDO_UTIL.SIMPLIFY(
   MDSYS.SDO_GEOMETRY(
      3003,
      7405,
      NULL,
      MDSYS.SDO_ELEM_INFO_ARRAY(1,1003,1),
      MDSYS.SDO_ORDINATE_ARRAY(
         407207.997315803,287087.001455892,0,
         406802.999914517,286916.000404434,0,
         406677.996543163,286831.004734191,0,
         406518.001132497,286741.000497636,0,
         406863.996876543,286566.000590838,0,
         407284.000289033,286672.000248752,0,
         407207.997315803,287087.001455892,0
   5,
   0.005
FROM
dualSo long-winded way to reiterate what Ivan said - you are using the wrong SRID. 10g was more forgiving than 11g when mixing and matching 3D and 2D SRIDs with data. 11g is more picky but not always that great at explaining the pickiness. I would bet if you had got back an error such as "2D coordinates not valid with 3D SRID" you would never have needed to post the question. I would suggest putting in an enhancement request to Support for some better error messages.
Cheers,
Paul
Edited by: Paul Dziemiela on Nov 6, 2011 10:58 AM

Strange Connectivity Problem- Totally Stumped

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