DNS entry not found problems

Some users have been having problems getting to some web sites. I think these actually break down to two types of problems.

1. Server Busy

Often a site not found or server not found message will be a result of the server being to busy to handle all the requests it is getting. This appears to have happened to Amazon.com.This is a message I received from one of my users.

Quote"
Yesterday I tried Amazon just to see what would happen. I didn't get
in. This morning I got in easily. I got the same results in both IE
and Netscape.

I have found that when a website is busy and has no open "ports" (or
whatever you call where you connect to a site), that the browser will
return a message indicating it is unable to find the server. Often,
just waiting a while, and trying during a less busy time of day will let

you connect.

Did the folks who had trouble connecting to Amazon say what time of day
they were trying? Amazon has been running a heavy ad campaign the last
2-3 weeks and that could have led to a drastic increase in hits...

End Quote"

There is nothing I as an Internet Service Provider or you as a user can do about this problem except try at other times.

2. Setup problems with the DNS (Windows 95/98 only)

Settings in the network control panel for the TCP can also affect the dial up. When we updated our software, these all of a sudden became a problem as those settings actually took over instead of settings you were assigned by the modem equipment. I will not go into the technical aspects of what causes what but have listed here settings to check for and correct. Some of these settings have been setup on your computer this way since we first started our internet service and now are causing the problem. These problems can appear to be intermittent, one day things work well and the next you can't get anywhere.

From go to settings and select the Control Panel. Double-click the Network icon. You should get a dialog box like this:

Make sure the Configuration tab is selected. Note that only the Dial-Up Adapter and TCP/IP need to be installed in most setups. If you are on no other network, I recommend that you remove all other components, except maybe the Client for Microsoft Networks.

If Dial-Up Adapter and/or TCP/IP are not installed, you will need to click on the add button. Then choose the missing adapter or protocol and use microsoft as the manufacturer in both cases.

To add the Dial-Up Adapter, hit the Add... button, double-click Adapter, then scroll down the list until you can select Microsoft. Choose the Dial-Up Adapter and hit OK.

If you need to install TCP/IP, hit the Add... button, double-click Protocol, then select Microsoft, then TCP/IP, and hit OK.

Once they are both installed, go to the next step.

Click on the TCP/IP protocol (highlighted in the picture) and press the Properties... button. You should get the TCP/IP Properties box.

There are six or seven tab sections in the dialog box. We'll deal with them in order.

In the IP Address Properties,Select the Obtain an IP address automatically option. This is sometimes set and tries to give your computer an address on the network that conflicts with other computers' addresses.

In the WINS Configuration Properties, select the Disable WINS Resolution option.

In the Gateway Properties, leave this alone, it should be blank.

In the Bindings Properties, by default, the Client for Microsoft Networks option is checked. Leave it alone.

 

In the Advanced Properties, no changes needed are from the default.

In the NetBIOS Properties, no changes needed are from the default. NetBIOS does not always appear in earlier versions of windows 95/98.

The DNS Configuration properties is probably what will give you the most trouble if not done properly. Select the Disable DNS option. DNS stands for Domain Name Service. In many of our early setups we had you enable DNS and put entries in it. This is only valid if you are connecting over a network or proxy server and not for dialing up into our network directly.

If you have it enabled and have a host name filled in, and someone else has the same host name, you will not get any response from the internet as long as the previous person is online.

If you do get on and no one else has the same host name at that time, problems may arise when you go to a web site that checks reverse DNS addresses, your incoming host name will not match the responder host name at the IP address and it will probably limit your access to certain parts of it's site if it lets you on at all. This is especially true of more secure sites.

When you're all done setting or correcting these options, press the OK button. Then press the OK button in the Network dialog box. Windows 95 will ask you to reboot.

After rebooting, check out your dial up network properties. These need to be set properly and a link to their correct settings is HERE.