TSGL: Network Adress Translation

[H Davis]

Don,

Re Tilman's comments below, I've heard good things about Network Magic:

http://www.networkmagic.com/nmlp/home-networking.php?src=google&kw=network%20repair&gclid=CPjijM6RhY0CFRGsGgodDGX7og

There's a free version. I haven't used it myself and I don't know if it 
will address your problem so I guess you're on your own.

Also, Make sure your modem doesn't have a router hiding within. I have a 
Speedstream 5200, supplied by the phone company, which seems to have a 
router of sorts built in. The router function has to be disabled 
(bridged?) if you're using an external router, which I am. This caused 
me lots of subtle problems when I first got it. Some of my problems 
sound a lot like what your having - mainly being unable to connect to 
web sites or connecting only after lots of tries. In my case the 
problems occurred after I booted up my computer and eventually resolved 
after 30 minutes or more of fussing with it. I don't remember having the 
disconnect problem on long downloads though.

HTH

H Davis

Tilman Brandl wrote:
> Don,
>
> can't help you much with this. What comes to my mind though is
>
> 1. There's a program (maybe more than just one) that's able to "sniff out" any problems, settings etc with network and/or web connections. Network sniffer? Not sure, hopefully some people out there will know what's it's name
>
> 2. If you haven't done so yet -  I would certainly also talk to the ISP. Even if they were reliable in the past, they may have had (or still have) a problem which could cause this ...
>
> Tilman
>   -----Ursprüngliche Nachricht----- 
>   Von: Don Penlington 
>   An: Tech Support Guy Mailing List 
>   Gesendet: Samstag, 30. Juni 2007 09:21
>   Betreff: TSGL: Network Adress Translation
>
>
>   System:
>
>   XP Pro SP2.
>
>   D-Link modem connected by 3Com Ethernet  XL PCI TX NIC (don't even ask me 
>   what all that jargon means!). ADSL1500.  Unlimited downloads.
>
>   I don't have a router, and I don't have a local network. This is a 
>   standalone computer.
>
>   Problem:
>
>   I have lately experienced several instances of what appears to be lost 
>   connections on long downloads or occasionally when trying to connect to web 
>   pages. I'm not aware of any recent additions which might have caused this.
>
>   It also happens after about 30-60 minutes of intensive browsing. Suddenly 
>   the browser (Maxthon/IE6) Sometimes I have to walk away for 1/2 hour, then 
>   everything's fine again.
>
>   Azureus Bittorrent tells me that I most likely have a "NAT" ("Network 
>   Address Translation") problem. Most (all?) their suggested fixes seem to 
>   relate to routers or LAN's, of which I have neither.
>
>   Bittorrent and other download speeds are about normal---except for these 
>   apparent interruptions to the connection.  Modem lights remain flashing as 
>   if it is still downloading (probably trying to seek reconnection).
>
>   Device Manager shows that in the Ethernet card/Device Properties/Advanced:
>
>       1. 802.1p support is enabled.
>       2. Flow control is disabled.
>       3. Network Address is marked "not present".
>
>   Should I change any of these settings? Presumably item 3 only applies where 
>   there is a local network of computers.
>
>   Last week I was unable to access a paysite file, I kept getting "file in 
>   use" error messages. After extensive investigation and various suggestions 
>   re browser security settings (enabling ActiveX etc), they could not solve 
>   the problem and decided that it must be some setting unique to this computer.
>
>   I've a feeling these might be 2 aspects of the same problem.
>
>   I've run antispyware scans with Spybot, AdAware, A-Squared, and a-v scan 
>   with AVG. Apart from the few usual
>   non-critical fleas, the system comes up clean.
>
>   I've also done a "repair" on the connection icon (flushing DNS cache etc), 
>   and several times reset the modem by powering off for 60 seconds. No 
>   difference.
>
>   Does anyone have any suggestions what might be causing these dropouts?  Of 
>   course, I can't entirely rule out overloads at the ISP, but I've been with 
>   the same major ISP for several years, and have always found them completely 
>   reliable.
>
>   Don Penlington
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>
>   

-- 
H Davis   hdavis1 at gmail.com