Originally Posted by
cblaisd
No joy, off or on.
I've been using OpenDNS at work for several months and have had exactly zero issues.
As for it being a DNS issue with your ISP, I can't imagine that's the case, since using OpenDNS would completely bypass your ISP's DNS servers, making them a non-issue. And if OpenDNS is at fault, going back to your ISP's DNS servers takes them out of the picture entirely. The chances BOTH your ISP AND OpenDNS are having issues with the EXACT same domains is virtually nil. I don't think it's DNS external to your network.
Originally Posted by
cblaisd
Using Firefox
Highly doubt it's your browser, given that iTunes AND your iPhone (both completely separate from your browser) are having issues.
Originally Posted by
cblaisd
Will do.
This should tell you. If you can get to these sites without a router (or with a different router), it's likely with your router. That's the bet I'm leaning towards.
It sounds to me like either an ACL rule (content filtering) in your router or an overloaded DNS cache table inside your router. In my limited experience setting up residential-grade router-based content filtering, the ACLs worked by URL and could be bypassed by using IP addresses. Unfortunately, the same symptoms also exist when the case is with DNS troubles, which makes it hard to diagnose.
At the risk of sounding mildly insulting (I really don't mean it that way at all), have you tried power-cycling your router? I only ask because you didn't mention doing so (unless I missed it).
Originally Posted by
cblaisd
If it's an isp issue, I wonder how I can best ask them. (Not looking forward to dealing with the script readers at the DSL telco's help line)
Not sure, since I'm hard-pressed to see how it could be your ISP!
Originally Posted by
cblaisd
I'm loathe to re-set the router because it has a rather complex set up arrived at after much sweat, with a virtual network running off of the real one in order to accommodate the one piece of network equipment that will not do WPA.
Completely understandable. I would be, too. You can try backing up the configuration, resetting the router, and then restoring the configuration.[/QUOTE]
I've got a Linksys WRT54G v5 running DD-WRT v24-sp2 at one of my offices. Let me take a poke around it and see if I can come up with something...
If you log into the router and click the "Status" tab, can you copy and paste everything from CPU down (shouldn't be any personally-identifying information there)? Should look like this:
Code:
CPU
CPU Model
Broadcom BCM5352 chip rev 0
CPU Clock
200 MHz
Load Average
6%
0.07, 0.08, 0.02
Memory
Total Available
69%
5688 kB / 8192 kB
Free
8%
428 kB / 5688 kB
Used
92%
5260 kB / 5688 kB
Buffers
8%
404 kB / 5260 kB
Cached
18%
940 kB / 5260 kB
Active
15%
812 kB / 5260 kB
Inactive
10%
Also, make sure nothing is set up under the Access Restrictions tab.
You can also backup the configuration under the Administration>Backup tab, reset the router (use the 30-30-30 method--hold the reset button for 30 seconds, then, while continuing to hold down the reset button, unplug the router for 30 seconds, and then, while continuing to hold down the reset button, plug the power back in), and then re-load the configuration. (If you had your router distributing IPs in a range other than 192.168.1.x, you'll likely need to renew your DHCP lease after resetting the router and renew it again after uploading the configuration.) More info on default settings (if you have trouble getting back in) is
here.