Re: Random HTTP - Please Help

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: Nathan Rixham (nrixham_at_hotmail.com)
Date: 09/30/04 

Date: Thu, 30 Sep 2004 16:54:24 +0100

Hi Frank,

Proxy is blank, detect is unchecked - I've noticed that I can generally ping
by IP but never by name

The other strange thing is that there is always one website i can see from
any client, but its out own website, however it is nothing to do with our
internal network, its just a Cobalt Raq4 server that we own and that is
located in a datacentre at the other side of the world, the only thing it
that even vaguely links it to our network here is that we connect to it
every few minutes with the "pop3 connector".

I always check my connection by checking "google.com" - and this is where it
gets stranger!!

As stated before i tend to follow the same actions everytime the connection
drops in this manner;
- Disable the ADSL network Connection
- Change the ADSL IP address
- Enable the ADSL Network Connection
- Change the IP back again
- View a few websites on the server, generally begining with google.com
- Generally approx 1 minute after viewing google.com on the SBS2k3 server, I
can view google.com on the clients, along with our own domain from which we
pick up email.. however I cannot see any subdomains, ie: news.google.com or
indeed any other websites.
- Again note that I can however connect to anything via smtp, pop3, msn
messenger
- several minutes later, everything will suddenly work, with no intervention
from me, and no actions of any kind by anybody

It seems as though the config of everything is correct, as when it works it
is faultless
I'm wondering if perhaps some DNS cache is flushing and ressetting on a
regular basis (it seems to happen almost every 24 hours, mid morning) + the
way the net seems to some back in stages is extremely puzzling

Hope you can help, and thanks for all your efforts - it is much appreciated

Cheers,

Completely Lost & Confused

"Frank McCallister" <anonymous> wrote in message
news:%23$qIGOwpEHA.324@TK2MSFTNGP11.phx.gbl...
Hi Nathan

In IE Connections is Proxy blank and detect automatically unchecked? When
you cannot browse can you ping Yahoo.com from WS by name or IP?

Frank
"Nathan Rixham" <nrixham@hotmail.com> wrote in message
news:OGSpsmvpEHA.1164@TK2MSFTNGP10.phx.gbl...
> Hi Frank,
>
> Yes I noticed that myself when i did posted it, have changed it back to
> only
> point to the local DNS server;
> However it still doesn't fix or explain the problem I'm having..
>
> Cheers,
>
> Nathan
>
> "Frank McCallister" <anonymous> wrote in message
> news:e6eC4jvpEHA.556@TK2MSFTNGP11.phx.gbl...
> Hi Nathan
>
> The DNS on the WAN NIC should ONLY point to 192.168.16.2
>
> See http://www.smallbizserver.net/Default.aspx?tabid=52 for setup (ignore
> the ISA parts)
>
> Frank
> "Nathan Rixham" <nrixham@hotmail.com> wrote in message
> news:uYGZv1upEHA.3464@TK2MSFTNGP14.phx.gbl...
>> here's ipconfig /all from one of the clients:
>>
>> Windows 2000 IP Configuration
>> Host Name . . . . . . . . . . . . : nathan
>> Primary DNS Suffix . . . . . . . : sportswise.local
>> Node Type . . . . . . . . . . . . : Hybrid
>> IP Routing Enabled. . . . . . . . : No
>> WINS Proxy Enabled. . . . . . . . : No
>> DNS Suffix Search List. . . . . . : sportswise.local
>>
>> Ethernet adapter Local Area Connection:
>> Connection-specific DNS Suffix . : sportswise.local
>> Description . . . . . . . . . . . : 3Com EtherLink XL 10/100 PCI
>> For
>> Complete PC Management NIC (3C905C-TX)
>> Physical Address. . . . . . . . . : 00-50-04-F8-48-D5
>> DHCP Enabled. . . . . . . . . . . : Yes
>> Autoconfiguration Enabled . . . . : Yes
>> IP Address. . . . . . . . . . . . : 192.168.16.21
>> Subnet Mask . . . . . . . . . . . : 255.255.255.0
>> Default Gateway . . . . . . . . . : 192.168.16.2
>> DHCP Server . . . . . . . . . . . : 192.168.16.2
>> DNS Servers . . . . . . . . . . . : 192.168.16.2
>> Primary WINS Server . . . . . . . : 192.168.16.2
>> Lease Obtained. . . . . . . . . . : 29 September 2004 13:00:42
>> Lease Expires . . . . . . . . . . : 07 October 2004 13:00:42
>>
>>
>> "Nathan Rixham" <nrixham@hotmail.com> wrote in message
>> news:urIr7tupEHA.1160@tk2msftngp13.phx.gbl...
>>> Its Standard Edition;
>>>
>>> ipconfig /all
>>>
>>> Windows IP Configuration
>>>
>>> Host Name . . . . . . . . . . . . : server
>>> Primary Dns Suffix . . . . . . . : sportswise.local
>>> Node Type . . . . . . . . . . . . : Unknown
>>> IP Routing Enabled. . . . . . . . : Yes
>>> WINS Proxy Enabled. . . . . . . . : Yes
>>> DNS Suffix Search List. . . . . . : sportswise.local
>>>
>>> Ethernet adapter Server Local Area Connection:
>>>
>>> Connection-specific DNS Suffix . :
>>> Description . . . . . . . . . . . : 3Com 3C996B Gigabit Server NIC
>>> Physical Address. . . . . . . . . : 00-0A-5E-20-AB-94
>>> DHCP Enabled. . . . . . . . . . . : No
>>> IP Address. . . . . . . . . . . . : 192.168.16.2
>>> Subnet Mask . . . . . . . . . . . : 255.255.255.0
>>> Default Gateway . . . . . . . . . :
>>> DNS Servers . . . . . . . . . . . : 192.168.16.2
>>> 158.152.1.58
>>> Primary WINS Server . . . . . . . : 192.168.16.2
>>>
>>> Ethernet adapter Network Connection:
>>>
>>> Connection-specific DNS Suffix . :
>>> Description . . . . . . . . . . . : Realtek RTL8169/8110 Family
>>> Gigabit
>>> Ethernet NIC
>>> Physical Address. . . . . . . . . : 00-0C-76-BB-F8-D1
>>> DHCP Enabled. . . . . . . . . . . : No
>>> IP Address. . . . . . . . . . . . : 83.104.73.211
>>> Subnet Mask . . . . . . . . . . . : 255.255.255.248
>>> Default Gateway . . . . . . . . . : 83.104.73.209
>>> DNS Servers . . . . . . . . . . . : 158.152.1.58
>>> 158.152.1.43
>>> Primary WINS Server . . . . . . . : 192.168.16.2
>>> NetBIOS over Tcpip. . . . . . . . : Disabled
>>>
>>>
>>> "Frank McCallister" <anonymous> wrote in message
>>> news:uFTUBEupEHA.3988@tk2msftngp13.phx.gbl...
>>> > Hi Nathan
>>> >
>>> > Is this Standard or Premium with ISA installed? Please post the
>>> > IPCONFIG
>>> > /ALL from the server and one WS
>>> >
>>> > Frank McCallister
>>> > COMPUMAC
>>> > "Nathan Rixham" <nrixham@hotmail.com> wrote in message
>>> > news:eCPHuYtpEHA.3716@TK2MSFTNGP10.phx.gbl...
>>> > > Hi All,
>>> > >
>>> > > I have SBS2k3 installed on our server, and approx 15 Win 2K pro
>> Clients
>>> > > attached.
>>> > >
>>> > > Server has 2 Network Cards, Card A for the LAN, Card B connected
>>> directly
>>> > > to
>>> > > a router for internet connection (ADSL NAT connection, router has
>>> assigned
>>> > > IP range, static IP for the router, another for mailgate and the
>>> > > rest
>>> for
>>> > > SBS to use).
>>> > >
>>> > > The router appears to be working correctly, as does the internet
>>> > > connection
>>> > > itself, as does the internal network here.
>>> > >
>>> > > PROBLEM: although the internet remains connected, and I can browse
>>> > > the
>>> net
>>> > > on the server, client computers cannot connect to the net for some
>>> reason,
>>> > > moreover this happens randomly and for no apparent reason!
>>> > >
>>> > > When I say connect to the net, I mean strictly HTTP requests to 99%
>>> > > of
>>> > > websites, the clients can connect perfectly well to other services &
>>> ports
>>> > > such as pop3, smtp & msn messenger.
>>> > >
>>> > > I am completely lost as to why this is happening, every time it does
>>> > > I
>>> > > disable the net connection, change the IP address & re-enable it,
>> which
>>> > > occasionally works, other times I have to then change the IP address
>>> back
>>> > > to
>>> > > the original one and re-enable the connection to get it to work.
>>> > > I've
>>> > > tried
>>> > > changing the DNS servers from SBS to my ISP's, makes no difference,
>>> tried
>>> > > using the windows DHCP server for the connection, appears to speed
>>> > > the
>>> net
>>> > > service up, but does not effect the random inability to connect
>>> > > experienced
>>> > > by clients..
>>> > >
>>> > > Might I add that it is all clients that simultaneously drop their
>>> ability
>>> > > to
>>> > > browse the web, although the server can still browse fine, and
>> remember
>>> it
>>> > > is only the HTTP service that is effected
>>> > >
>>> > > Any help would be greatly appreciated as this has gone on for months
>>> now,
>>> > > happened daily, and I'm lost.
>>> > >
>>> > > Cheers,
>>> > >
>>> > > Nathan Rixham
>>> > >
>>> > >
>>> >
>>> >
>>>
>>>
>>
>>
>
>
>

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