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Re: [OM] [OT] LAN woes

Subject: Re: [OM] [OT] LAN woes
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sat, 05 Jun 2010 18:15:44 -0400
It can't be the cables since both machines talk just fine to the 
internet via the router.  They just can't talk to each other in a normal 
fashion and the laptop is unable to even ping the desktop.

Chuck Norcutt

Jim Nichols wrote:
> Chuck,
> 
> Just a random thought.  From reading your words, I gather that the main 
> problem is the laptop's ability to communicate properly.  Do you have 
> another cable that you can try, in connecting the laptop to the router?
> 
> Jim Nichols
> Tullahoma, TN USA
> ----- Original Message ----- 
> From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
> To: "Olympus mail list" <olympus@xxxxxxxxxxxxxxxxx>
> Sent: Saturday, June 05, 2010 4:44 PM
> Subject: [OM] [OT] LAN woes
> 
> 
>> My little LAN is composed of just two computers (a desktop and a laptop)
>> attached (by wire) to a wireless capable router and thence to a new
>> cable modem with VoIP capability.
>>
>> On Friday last I installed the new cable modem along with some new and
>> more modern phones.  All was uneventful.  The new modem just plugged in
>> place of the old modem and worked off the bat.  The VoIP connection
>> plugged into the house wiring and also worked fine as did the new
>> phones.  The next day the laptop was unplugged from its wire and we went
>> on a weekend trip where the radio on the laptop was enabled to use the
>> Wi-Fi in the hotel.  Also worked just as expected as it has many times
>> before.  After we returned the laptop was replugged to its wired
>> connection and the radio turned off.  All was well for a few days using
>> just the internet on both machines.  That is, until my wife attempted to
>> use the LAN by trying to print something from the laptop to one of the
>> printers connected to the desktop machine.
>>
>> To make a long story short I suddenly have no LAN despite both machines
>> working normally on the internet.  I related all the preceding for
>> completeness of "changes" to the configuration although I don't see how
>> either of those things could cause the problem I see.  And I suppose
>> "suddenly" is a misnomer since we rarely use the LAN except for some
>> relatively rare printing.  The problem could have been there for weeks I
>> suppose.
>>
>> I have tried to setup the LAN all over again on both machines to no
>> avail.  The desktop knows and can access the LAN by name and sees that
>> both machines (by name) are part of the LAN but can't communicate with
>> the laptop.  The laptop is even weirder.  It knows the name of the LAN
>> but complains that it has no access to that name and thus no visibility
>> to the name of the desktop as part of the LAN.  I have disabled the
>> firewalls on both machines to no avail.  I have tried ping tests which
>> are also strange.  The desktop can successfully ping the router by
>> address and can also ping the laptop and itself by NetBIOS name and by
>> address.  That seems very strange given that it can't communicate with
>> the laptop normally.  The laptop can communicate with the router by
>> address and with itself by name and by address.  It can discover the
>> address of the desktop when told to ping it by name but the ping itself
>> is unsuccessful.
>>
>> All of this, as written, is probably a bit confusing so, to summarize:
>> the only anomaly of the ping commands is that the laptop's attempts to
>> ping the desktop are unsuccessful.  That probably goes hand-in-hand with
>> the laptop's failure to see the desktop as part of the LAN structure.
>> Finally the desktop can ping anything successfully and sees the LAN
>> structure but can't communicate with the laptop.
>>
>> Does any of this make any sense?  If it weren't for the fact that the
>> internet works fine I'd be blaming some network hardware.
>>
>> Chuck Norcutt
>> -- 
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>>
> 
> 
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