Extremely slow DNS lookups
I have Debian Sid installed on my laptop and am getting extremely slow DNS lookups when I'm connected to the web through my router at home (datasheet of router: http://www.netopia.com/equipment/pdf/spec/3300w.pdf). This doesn't happen under Windows, though, and the problem doesn't occur either when I'm surfing at school (using Debian).
I've now been searching the web for days for a solution to this but couldn't find anything solid. A piece of advice that was often given was turning off IPv6. But in my case this didn't work out either.
I'm not really familiar with Linux yet and would be glad if you could help me along.