DNS problem, trying to connect to my web sites

My web host changed servers last week, We know there are DNS problems.

Sometimes I can connect to one of my sub-domains. But none of the rest of them with the chage which took place 4 days ago.

I have a shared IP address for my domain. I can get to cpanel and do admin work available in there.

I would like to add material, articles, etc. to my sub-domains in spite of the DNS problems.

I tried substituting the IP address for my domain name, no connection. WS_FTP says it cannot find it. I tried the same thing in both IE 10 and FF 35, no connection to my sites. I get the 'make sure you typed them in correctly' error message.

The links to my sites are bookmarked, so I know they are correct.

Is there a way to connect so I can log into my sub-domains and do some work ?

Thanks !

edit: I tried nslookup from the command line, my ISP's DNS server says it canot find it.

Site url: http://www.drivein-jim.net

edit 2:

I was able to ftp several hours ago, but no ftp connection about 3-4 hours later.

edit 3:

I noticed some mentions of using MySQL entries to post articles in a cms. Is there a way to do this without breaking my site ?

Any help ? I would really like to solve this.

You would be better asking at a web hosting site like - Web Hosting Talk - The largest, most influential web hosting community on the Internet

I looked it over. I have so many web accounts now. I'll have to think about it.

You may wanna start looking at dynamic dns (DDNS). You can try a free version at no-ip.org
I did and now subscribed to it.

Not for a hosted site with domain.

My web host's guy who would deal with this is on vacation. So I'll wait until he gets back and discuss it with him.

He is back from vacation, and I can get to all of my sites now.