I am new to networking so I will do my best to express the problem I am having:
We replaced our router last weekend with the RV220w and ever since we did that we have problems getting to external websites. The most ironic one would be cisco.com, we can't get to it. We get a Server Not Found on our web browser(s). I've tried Firefox 7 and 8, IE 8 and 9 and Safari.
Other issue we are having is that sometimes when we do get to a site the page is loaded wrong, not sure how to explain this one. It is like it displays all the text but doesn't display the structure of the site (no color, no background image, no tables, etc, etc)
I've tried firmare 18.104.22.168 and 22.214.171.124 and we have the same result. I've disabled PPTP server which I have read in many forums causing other problems.
This sounds like an MTU issue. (Packet fragmentation) If you are using DSL, go to Networking-> WAN-> IPv4 WAN Configuration and at the bottom of the page change the MTU to custom. Lower the MTU in increments of 10, starting at 1492. Usually you will find that the pages start loading properly after you lower the Maximum Transmission Unit. To find the correct MTU to use without guessing you can do an MTU test.
We are using DSL and I have a call into our ISP to see if we need a new modem but I did play around with the MTU settings all day and nothing has changed. Still having problems displaying websites or it is really slow.
I am going to re-install firmware 126.96.36.199 and reset all settings and start the configuration all over. If that doesn't work, then I will downgrade 188.8.131.52 and reset all settings as well.
Thanks for the suggestion and the link on how to test the MTU.
I am pretty sure it's a DNS issue now. Problem is we have a SBS 2011 running Exchange. If we let the router be the DNS, we can't have our Outlook connect to the server and if we let the server be the DNS, then we are having website issues. I've played around with the DNS Proxy but that hasn't made a difference.
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