Error 1460 and slow connections. Fast once DNS is resolved.

[ivanv]

Hi,

I'm having a bit of trouble with ISA Server 2004.

Internet browsing works, but it's very slow on first access. For example, google.com takes about 5 secs to load, and then it's instantaneous. If I close the browser and open it again, the delay is present again (so I don't think the cache has anything to do).

Also, not every site is browsable. Some sites never load and ISA returns Error 1460: Timeout. Rough translation:

The gateway couldn't get an oportune answer from the web site you were trying to access, from a DNS server or from another gateway server. This could mean the network is congested, or that the website has technical problems.

This is how ISA is connected:

ISP
|
Linksys Router/Firewall
|
ISA Server
|
Our LAN

ISA Server has two NICs on different subnets, but I added both subnets to the "Internal Network".

Thanks in advance for any help you may provide me!

Regards,
Iván V.

 

[JillofAllTrades]

Often experience the same issue.
Did you ever find an answer?

Christine

 

[ivanv]

In my case it was because domain controller loaded before the ISA Server, so it didn't know how to resolve DNS queries. Restarting the DNS service solves this issue.

 

[coco10]

you can put a dns server in your isa box with a forwarder to the master dns server of your network and this can solve this issue.

by the way your pc with dns use?

coco10