We have server 2008 with about 50 clients.We use IE8. Our server address "using an example" is 192.168.0.1....On our DNS server I have this set as the primary address for DNS, as a alternative I have 18.104.22.168 as the Alternative DNS address. This is actually Google's Public DNS server. I'm having the oddest issue..
For some reason only on random sites, the users cannot pull them up. Either it will say the page cannot not be displayed or will give errors. 95% of sites work great however. For example Paypal can't show up for users. Also some other websites may show up, but with errors such as:
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; eSobiSubscriber 22.214.171.124; MAAR; .NET4.0C; MS-RTC LM 8; .NET4.0E)
Timestamp: Thu, 20 Sep 2012 16:27:10 UTC
Message: Object expected
For some reason they will get that error message, or even one user will get it ONLY when replying to a message via wwebmail randomly. Odd right?
All of these issues go away when I change the DNS state state 126.96.36.199 as the Primary DNS and our's 192.168.0.1 as a alternative. The problem with keeping that however is, sometimes the users drives/file share scripts and stuff won't load when logging in, because it's pointing at Google, not our DNS.
OR the issue also goes away if they use Chrome or Firefox, regardless of DNS settings. Again making it very odd.