Yes, I disabled both Windows firewalls to no effect. And, of course,
the Windows firewalls had no part in the Linux test which also showed no
difference from the Windows test.
I think I have a crossover cable somewhere around here but I'll be hard
pressed to find it.
I did suddenly realize sometime today that the wireless adapter is a
separate piece of hardware from the Ethernet adapter. So I did try the
wireless connection... with exactly the same results as the wired
connection.
Chuck Norcutt
On 7/31/2011 8:41 PM, pschings@xxxxxxx wrote:
> The problem does sound like the router, since I think you said you
> had already ruled out the firewalls. If you have a crossover cable or
> a passive hub you might want to try a direct connection between the
> desktop and laptop. I also don't recall if you tried the laptop's
> wifi interface.
>
> -original message- Subject: Re: [OM] (OT) XP Printer advice. From:
> Chuck Norcutt<chucknorcutt@xxxxxxxxxxxxxxxx> Date: 07/31/2011 20:26
>
> The router has been running for 4 years with the same configuration.
> It has a firewall but the purpose of the firewall is to hide the LAN
> from the WAN. It shouldn't be involved in this problem and in any
> case it's configured the same as it always was (I just checked it
> again).
>
> Chuck Norcutt
>
>
> On 7/31/2011 7:26 PM, C.H.Ling wrote:
>> I don't know if this help, my case was I had no problem to
>> communicate between all computers (all XP SP3) but my movie box
>> (wired) could not access the folder of other computers (it was able
>> to connect to the internet). The problem was solved by disabled the
>> "SPI Firewall Protection" in the router.
>>
>> At the mean time all computers are having their firewall turned
>> on.
>>
>> For wireless connection there is also an AP Isolation feature on
>> the router, this should be disabled if your laptop has to
>> communicate with other computers connected to the same routers.
>>
>> C.H.Ling
>>
>> ----- Original Message ----- From: "Chuck
>> Norcutt"<chucknorcutt@xxxxxxxxxxxxxxxx> To: "Olympus Camera
>> Discussion"<olympus@xxxxxxxxxxxxxxxxx> Sent: Sunday, July 31, 2011
>> 11:58 PM Subject: Re: [OM] (OT) XP Printer advice.
>>
>>
>>> Thanks. Unfortunately, I can't seem to find any way to direct
>>> the router to ping the computers directly. However, it would
>>> seem to me that the computers are communicating with the router
>>> since they can resolve the IP addresses using just the computer's
>>> names in a ping command. It's just that running the ping on the
>>> laptop against the desktop fails after properly resolving the
>>> desktop's IP address.
>>>
>>> I was just wishing I had a third computer to attach to the local
>>> net. That would at least tell me if the problem is in the laptop
>>> which is where I suspect it is. It's the only thing that's
>>> perhaps had "unknown" configuration changes. The only changes to
>>> the desktop were the uninstall of the old Brother laser printer
>>> and the installation of the new one in its place. The printer
>>> works fine from the desktop where it's physically installed.
>>>
>>> Chuck Norcutt
>>>
>>>
>>> On 7/31/2011 10:54 AM, Michael Collins wrote:
>>>> On 7/31/11 10:19 AM, Chuck Norcutt wrote:
>>>>
>>>>> Turning the firewall off on both machines makes no difference
>>>>> to anything. Trying to map drives elicits exactly the same
>>>>> similar but different responses. Trying to ping from one to
>>>>> the other also has exactly the same results.
>>>>>
>>>>> *I asked this yesterday I think. Is there perhaps a big clue
>>>>> in the failure of the laptop to ping the desktop? Is this
>>>>> not LAN adapter to LAN adapter via the router with no or at
>>>>> least minimal involvement of the OS?*
>>>>
>>>> I'd say so, although the firewall can certainly get in the way
>>>> of the "minimal involvement of the OS". The ability to ping the
>>>> other machine is pretty fundamental at the TCP/IP level, and I
>>>> think this is a significant clue. Whether it's the sending
>>>> computer's ICMP packets not going out, the receiving computer
>>>> not allowing them in or not sending the response out, or the
>>>> sending computer not allowing the response in is unknown. IMHO
>>>> you shouldn't be looking elsewhere until you resolve this.
>>>>
>>>> Can you ping them from your router? Some routers offer this
>>>> feature. Or do you have another system on the LAN that you can
>>>> ping to/from? Either would help you identify the likely
>>>> culprit, though not the cause.
>>>>
>>>> Someone has suggest "sniffing" the LAN traffic, I think. The
>>>> tool to use is Wireshark. I have it on several of my systems,
>>>> but not on my XP laptop; I'll see if I can get it set up later
>>>> today, if you're not already familiar with it.
>>>>
>>>> Michael
>>>>
>>>>
>>> --
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>>
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