I have set this to match the wired scope for lease of 1 day and Name Protection enabled.
Check out our UTM Buyer's Guide for more information on what you should be looking for! You have kept very tight refresh and no refresh interval Ensure that your domain DNS zone srv records are updating as appropriate Other wise scavenging process will eventually delete all those srv records as well under _msdcs.zone and zone (_TCP, _UDP, _MSDCS folders etc.) I'd keep refresh interval 8 HRS and No refresh interval 4 HRS as a precautionary measure so that you will get sufficient time to update all relevant SRV records on domain controller Remember, scavenging need to be enabled on only one DNS server and changes will get replicated to all other DNS servers (which are also domain controllers) Mahesh I have made the suggestion to set the refresh intervals to the times above.All users have laptops and frequently switch from wired to wireless connections (these are on separate VLAN's).It seems the wireless DNS entry is the predominant one which is held in DNS which makes name resolution fail often. When I came in today I hard wired (and have been all morning). The forward DNS entries ("A" records) for windows machines on the domain are populated automatically.However, the reverse DNS entries ("PTR" Records) are not.Let me know if you need any further information Ok Great.Appreciate thoroughness of your explanation I hope you have added DHCP server computer account to DNSUpdate Proxy group on DC If DHCP is located on a Windows 2008 R2 or Windows 2012 DC, you can and must secure the DNSUpdate Proxy group by running the following: dnscmd /config /Open Acl On Proxy Updates 0 Check EE article for more information Evaluating a UTM appliance and vendor can prove to be an overwhelming exercise.I performed a cold boot of my machine and obtained a wired DHCP address.When I attempt to ping my machine from another device it is returning the wireless IP address from yesterday and thus timing out.How can you make sure that you're getting the security that your organization needs without breaking the bank?Check out our UTM Buyer's Guide for more information on what you should be looking for!