Re: Web Browser problems
Ron Pinz (rpinz@pcnet.com)
Mon, 18 Sep 95 00:56:56 EDT
At 02:29 PM 9/17/95 EDT, you wrote:
>Has anyone noticed a problem with dialin accounts accessing
>certain web sites? In our system, we have noticed that
>several web sites, including www.home.msn.com and
>www.pcworld.com, connect but hang, i.e. constant wait. After
>several experiments, I found that setting the MTU on the
>dialin software to 576 or greater cures the problem. The
>browsers that have had this problem are Win95 with Netscape
>and Explorer, Win3.11 with Netscape Navigator Personal
>Edition, and OS/2 Warp with WebExplorer.
>
>Our setup is one Livingston PM2E-20s at two different sites
>using Radius 1.16 with the .ppp extension patch. Adding the
>Framed-MTU= in the users file makes no effect.
>The Portmasters are running ComOS 3.1.3c2. I also tried
>ComOS 3.1.2.
>
>Using Win95, the show s?? on the Portmaster says the
>connection is running an MTU of 1500. Only patching the
>netTrans Registry file in Win95, to specify the MTU, fixes
>the problem.
>
>Is this a Portmaster problem or somewhere else??
>
I have a customer experiencing this problem when people
attempt to access *HIS* Web pages. The problem has been
temporarily solved. A little configuration background might
help some of you. At our end, we are using an IRX-114 and an
Adtran TSU with a DS1 to our telco's frame relay network. The
customer has a DS0, Compatible Systems 900i and Adtran 5600. On
Thursday, I sent the customer my spare IRX-111, and the problem
disappears while the IRX is maintaining the site. Etherfind on my
network has shown some pretty interesting things, the packets
that are sent vary depending upon whether or not a Microsoft
32-bit TCP/IP stack (excluding NT) is used. I will post updates
here as they become available.
Ron Pinz
Network Manager
Paradigm Communications, Inc.