This can happen when the modem permissions are not set to allow faxing.
1. Go to Start -> Settings -> Printers and Faxes
2. Right-click on the Fax icon and select Properties.
3. On the “Devices” tab you should see your modem. Make sure that the modem is enabled for fax sending.
4. If not, click on properties for the modem and click “Enable device to send”
If the server has multiple IP addresses, when you specify port 443 for SSL, you can’t just accept the SSL identity for “All Assigned” you have to add an identity for the specific IP that is assocated with this domain (or add it to all IPs assigned to this machine). If you just leave the “All Assigned” then you’ll get a DNS not found response when you browse, even if you can successfully test the connection through telnet.
If you accidentially clicked “OK” to an ActiveX popup, you may have installed an ActiveX control. Frighteningly, ActiveX controls have a huge amount of power to do almost anything they want.
First, never install an ActiveX control without reading the pop-up box and making sure you trust the source! A lot of people install programs that will rip you off. The most harmless ones may just open pop-ups all the time. Others may monitor what sites you visit. Really nasty ones have dialers in them. If your computer is hooked up to a phone, it can make 900 calls with huge phone rates and you get stuck with the bill.
To see what activeX controls are installed and to remove them, in IE
1. go to Tools -> Internet Options…
2. on the General” tab, in the “Temporary Internet Files” area click “Settings…”
3. click “View Objects” now you can see all the IE add-ons that are installed.
4. Right-click on one of them and select “Properties…”
5. on the “General” tab is a field called “Code Base” the code base is the URL that is associated with this add-on. you can probably check out these urls and see what the hell it is. there’s a fews legit IE default plugins installed, but you’ll probalby find the one you don’t like
6. right-click and select “remove” to get rid of the unwanted plugin.
If you are using Internet Explorer 6.x and the “View Source” menu option doesn’t work, this is because your cache is full.
To empty your cache, go to Tools -> Internet Options and click the “Delete Files” button. This can take several minutes if your cache is large.
There are a lot of reasons why this error occurs, but the message is actually deceiving. Rarely is the device name actually already in use. The typical reason for receiving this message is that your machine simply cannot connect to the other machine for whatever reason.
The most common reason I have discovered is that a port is being blocked via a firewall. If you have enabled the MS built in firewall, then you will definitely get this message.
Windows uses UDP ports 137 and 138 and TCP port 139 for network communication. Unfortunately these are the worst ports, from a security standpoint, to have open. You can usually get drive mapping to work by opening the MS Firewall on UDP port 137.
To get to the MS firewall in XP, right-click on your network neighborhood icon and select properties. Right-click on the internet connection that you are using and click on the “advanced” tab. There is a checkbox for the firewall. If it is enabled, click on the settings button. You open up the ports by clicking on the “Add” button and then specifying, for example:
Name for the service: (whatever you want)
Address of machine: localhost
Select UDP
Internal Port: 137
External Port: 137