A few weeks ago a Vigor 2820n router was installed at a customers site, to replace a faulty Belkin router which had faulty LAN ports causing problems for the EPOS system we supplied.

Since then the customer has had problems accessing sites like Google Calendar and Yahoo using Apple Mac laptops on wireless. We have tested the these sites using a laptop running Microsoft Windows, without any problems.

We asked the customer to test the Apple Mac laptops with the original Belkin router and they reported there was no problems.

Unfortunately none of our staff have any experience with the Apple Mac OS and cannot isolate the problem.

Are there any router settings which would cause these problems or could there be a incompatibility between the wireless in the the router and the Apple Macs?

FYI i have 2820Vn router 3.3.3 firmware, and a 17" Apple Macbook Pro 2008 model. No problems with wireless. There are no special configuration settings at either end as far as I am concerned. Suggest you ask the user to ensure their MAC airport firmware is up to date (airport is just the name given to the wireless receiver in the mac). Also, the user PROBABLY has a wireless router at home, so ask them if they have any problems using it there.

I have a 17" Macbook Pro running 10.6.2 AKA Snow Leopard, its works fine with my 2820n running 3.3.3 & WPA2.

What encryption are you using on the wireless ?

What OS are they running on the Mac ?

Is the connectivity there, i.e. can they ping the default gateway.

I had trouble in the past with my Macbook on 10.5 working to a Netgear DG834N router, the issues disappeared when I upgraded to 10.6.

However over the same period I had no problems with a 2800VG on either 10.5 or 10.6. Maybe something to do with 802.11n ?

I've recently upgraded to a 2820Vn and have no problems connecting to the sites mentioned on my Macbook at all.

I had a prob with the 2820vn on OS 10.5.1 it was using DHCP but not picking the DNS properly. In system preferences goto networking and select advanced then the DNS tab, add in the ip of either the DNS server or the DrayTek unit