I can not login I keep getting a window that states "DNS could not resolve the host name"

[Jeri5]

I downloaded and installed MS 10 is that an issue ? Why am I not being let in to SL? Please explain !

[Rolig Loon]

Your viewer and SL's servers have temporarily lost the ability to talk to each other. Unless there's a problem with the servers (Always check http://status.secondlifegrid.net/ first), it's probably something on your end. So....

(1) Try shutting off your computer, unplugging the router and modem for a couple of minutes, and then plugging them back in and restarting. That simple step may clear up everything

(2) Add Google's free public DNS servers to whatever your ISP assigns you as a default. Here's how >>> https://developers.google.com/speed/public-dns/docs/using  If using Google as a DNS does not work for you then see here for alternate servers, or grab DNS Bench to help you locate one.

(3) If things are STILL messed up, contact your ISP. Maybe they are working on their Internet connections. Mine go down for about 20 minutes once a month or so while they are vacuuming dust out of their servers, or whatever they do.

[Nalates Urriah]

If you are using a Mac, this is a common problem. Add the Google or Open DNS server to your list of DNS servers.

When you ask tech question include info about your computer and viewer. You can use Help->About... in the viewer, even before you login, to gather the information we need.

If you are running Windows, it is way less common. You may have other issues than just DNS problems. So, check out http://blog.nalates.net/2011/10/26/troubleshoot-your-sl-connection/