Solved

unable to access some websites (yahoo in particular)

Posted on 2013-11-07
7
377 Views
Last Modified: 2013-11-26
I ran a firmware upgrade of a Sonicwall TZ100W from 5.8.1.5 to 5.8.1.13 and now have issues loading some webpages from the lan. I can tracert to yahoo.com and ping same but when opening a browser, the browser just states 'connecting' and never loads page. I can however get to sports.yahoo.com with no issues.

On the sonicwall, I have now turned off all Security services etc and still no joy.
I have set DNS on the server to OpenDNS as well as ISP dns

Another oddity is if I go to abcnews.go.com, the browser loads the header of the page in the browser title bar but then will not load anything else (even after clearing browser cache and resetting browser to defaults).
I can browse many other pages no problem google, msn, bbc, etc
0
Comment
Question by:cyansolutions
  • 4
  • 2
7 Comments
 
LVL 25

Expert Comment

by:Diverse IT
ID: 39631005
Hi cyansolutions,

I'd recommend upgrading to SonicOS 5.9.0.2.

Do you have DNS Rebinding Attack Prevention (Network > DNS) enabled? If so, what is the action set to?

DNS does not function as one would think...it does not try in the order set, e.g. DNS 1, then DNS 2, then if fails try DNS 3. But rather whichever DNS server responds quickest will be the answering server. So typically your ISP is the fastest responding, therefore if you want to test them set only one. then go on the PC and on the command line type ipconfig /flushdns, then re-test and repeat the process each time with a single new DNS server entry.

Check CGSS (AV, AS & IPS) along with Content Filtering Service (CFS) and App Control to make sure it's not being blocked by either security service.

Let me know how it goes!
0
 

Author Comment

by:cyansolutions
ID: 39672470
I've requested that this question be deleted for the following reason:

Issue resolved with tech support assistance
0
 
LVL 25

Expert Comment

by:Diverse IT
ID: 39670458
How did they resolve it?
0
3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

 
LVL 25

Expert Comment

by:Diverse IT
ID: 39672471
At least provide the answer so that it will benefit others and select it as your answer!

I don't understand why you would post this question, and not respond, and then call tech support.
0
 

Accepted Solution

by:
cyansolutions earned 0 total points
ID: 39673914
Final resolution was to scrap config and reconfigure firewall with new firmware. This was the quickest solution that Sonicwall would supply me as the appliance was out of support.
0
 
LVL 25

Expert Comment

by:Diverse IT
ID: 39674431
OK, thanks for getting back to me! Next time hopefully we'll have some dialogue so we can get this answered for you!

Take care!
0

Featured Post

Live: Real-Time Solutions, Start Here

Receive instant 1:1 support from technology experts, using our real-time conversation and whiteboard interface. Your first 5 minutes are always free.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
In this article, I am going to show you how to simulate a multi-site Lab environment on a single Hyper-V host. I use this method successfully in my own lab to simulate three fully routed global AD Sites on a Windows 10 Hyper-V host.
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

786 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question