Just to close this issue:

I waited a few days to make sure the problem was fixed. It seems it was a proxy 
server issue. I changed the FIrefox default of from "auto detect" proxy to "no 
proxy," and this seems to have solved the problem.

Thanks again...

Otis

--
Otis Rothenberger
o...@chemagic.com
http://chemagic.com




On Jun 28, 2012, at 1:26 PM, Otis Rothenberger wrote:

> One more local suggestion came in that might be the real problem:
> 
> http://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can#w_dns-prefetching
> 
> I never thought about this as a browser issue related to DNS, but there it 
> is. This is easy to check out. I use Firefox exclusively and only use other 
> browsers to check my scripting. I'll change the FF default on DNS prefetching 
> to see if this solves the problem.
> 
> Thanks again...
> 
> Otis
> 
> 
> 
> --
> Otis Rothenberger
> o...@chemagic.com
> http://chemagic.com
> 
> 
> 
> 
> On Jun 28, 2012, at 1:03 PM, Otis Rothenberger wrote:
> 
>> All-
>> 
>> Thanks for the replies both off and on list. It sure sounds like this is a 
>> local problem with my ISP. A local chemist suggested something that sounds 
>> like a likely guilty party - DNS server. He suggested that I change from the 
>> ISP defaults to a college, university, or open DNS.
>> 
>> I'll get appropriate addresses and give this a try. The main importance of 
>> your feedback is that it shows that this is not a Resolver issue. It has to 
>> be a local issue. Thanks again for the feedback.
>> 
>> Markus, thanks for looking into this.
>> 
>> Otis
>> 
>> 
>> --
>> Otis Rothenberger
>> o...@chemagic.com
>> http://chemagic.com
>> 
>> 
>> 
>> 
>> On Jun 28, 2012, at 10:07 AM, Otis Rothenberger wrote:
>> 
>>> Jeff,
>>> 
>>> I'm reading the Resolver files as http, and I'm not messing with the 
>>> headers. It never bothered me because the load works, but maybe that's part 
>>> of the problem. Markus?
>>> 
>>> Otis
>>> 
>>> 
>>> 
>>> --
>>> Otis Rothenberger
>>> o...@chemagic.com
>>> http://chemagic.com
>>> 
>>> 
>>> 
>>> 
>>> On Jun 28, 2012, at 8:32 AM, Jeff Hansen wrote:
>>> 
>>>> Both links worked for me (fast, by the way) although they were formatted 
>>>> differently.  The first had spaces and line breaks.  The second didn't. 
>>>> 
>>>> 
>>>> ***********************************************
>>>> Jeff Hansen
>>>> Department of Chemistry and Biochemistry
>>>> DePauw University
>>>> 602 S. College Ave.
>>>> Greencastle, IN 46135
>>>> jhan...@depauw.edu
>>>> ***********************************************
>>>> 
>>>> 
>>>> On Jun 27, 2012, at 10:18 PM, Otis Rothenberger wrote:
>>>> 
>>>>> All,
>>>>> 
>>>>> For quite some time, I have been having a small problem with the NIH/CADD 
>>>>> Chemical Identifier Resolver. Specifically, on my first attempt to 
>>>>> connect, I frequently timeout without making connection. Once I make my 
>>>>> first connection by attempting 1 or more reloads, I'm OK for that working 
>>>>> session. To be a bit more specific, this is a first attempt of the day 
>>>>> issue and a first attempt after about an hour of inactivity issue.
>>>>> 
>>>>> To help me determine if this is a local issue, I'd really appreciate some 
>>>>> help. Are there list users willing to hit the links below as your FIRST 
>>>>> hits of your work day? Hit them wait an hour or more and hit them again. 
>>>>> I really appreciate any reports:
>>>>> 
>>>>> http://cactus.nci.nih.gov/chemical/structure?string=C[C@@H]%28Cl%29CC&representation=file&get3d=True
>>>>> 
>>>>> http://chemistry.illinoisstate.edu/osrothen/web_molecules/nih.aspx?smi2sdf=C[C@@H]%28Cl%29CC
>>>>> 
>>>>> Jim (cc'd with this note), would you forward this note to the ISU 
>>>>> chemistry faculty list?
>>>>> 
>>>>> Thanks in advance for any help. You'll either get the sdf of 
>>>>> (R)-2-chlorobutane or you'll timeout.
>>>>> 
>>>>> Otis
>>>>> 
>>>>> --
>>>>> Otis Rothenberger
>>>>> o...@chemagic.com
>>>>> http://chemagic.com
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
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