Sorry, but I'm not a Windows 2000 Server expert.

Can anyone tell me why I keep getting this when I try to login to our company website?



That's our Web Proxy IP???

your proxy server's certificate is not being trusted by the machine
what kind of proxy server is this? hardware proxy supplied by a vendor? software proxy? does it use a microsoft CA (certifcation authority) service to push out its certificates or it handles it on its own? is the certificate being pushed out from the same server or is being relayed from another source...maybe that's why it's not being trusted

there are ways in internet explorer to add that certificate to the "trusted root certification authorities" by accessing inetcpl.cpl, content tab, certificates and adding that particular certificate to the list

another thing which might help is if you add the proxy server's IP address to the trusted sites zone of internet explorer, this way it may be trusted at all times, altho you'd have to play around with the zone settings

if this is not a microsoft proxy (such as ISA server) and not using the microsoft CA, you should probably contact the vendor of the proxy to see what the best thing to do is

FatTony thanks for your reply I'll try to answer as best as possible.

I can tell you the problem is definitely local to my company network because I have no problems logging into the website from home. (You didn't ask but I thought I'd throw that in.)

It's a small company, so we only have one server that handles all our needs as far as a mail server, data server and our proxy server. There's no special hardware or software that I can see so I believe it to be whatever generic Microsoft proxy application is available with Windows 2000 Server. It must be an issue directly with the server because it will affect all workstations.

Sorry , but I don't know. How can I find out?

I've tried accepting the certificate in either IE or Firefox, but get a web page cannot be displayed message.

Done that, didn't work.

As I noted earlier, I believe that this is just a standard Microsoft ISA setup.

The Dell server was rather shoddily setup by an outside "consultant" with whom I will not allow the company to deal with anymore as they are totally unreliable. If I have to, I'll see if I can find another consultant to help me with it.

What bothers me is that as of this morning, the problem has disappeared and that really bothers me. I want to know what caused it so I can deal with it when it arises again.

disappeared? damn...i don't know you might be using a 2000 small business server (SBS), probably does have ISA

i hate PKI man, certificates can be picky, and i don't know how it works from home but not on the LAN, every workstation on your LAN has, or well had this issue till recently?

i would still try to add the cert. to the trusted root certificates

weird issue tho

Ahhh , I don't think I know how. Would it be something you could walk me through?

it's in my first post, done through internet options in control panel
but it's not that easy, you'd have to know where the certificate is actually located and have it installed on your machine somehow...if it's working now, i say just leave it