Problems streaming Destinos videos once Airport Express installed

Question

I just added an Airport Express and an Apple TV to my home iMac. (The Airport Express is my only "router".)
Everything works great except one problem.
I can no longer watch a series of 30-minutes lanuage videos (Destinos: http://learner.org/series/destinos/watch/index.html?ep6 ) on my iMac without restarting each video every 5 minutes and them jumping to the point it last froze to continue viewing the remainder of the video. Suggestions? It feels like some kind of buffering problem.

Answer 1

i have an airport express that was working fine
wirelessly with the green light sustained and
everything was fine until i had to put a password on
my wireless router to keep unauthorized users from
slowing down my connection. i am using a linksys
wireless-G router and once i installed a password the
airport express isn't recognized by the computer and
there is a yellow light blinking instead of a
sustained green light. how do i fix this problem?
Did you add a WEP password, if possible use a WPA password instead.
One of the problems with WEP is that the actual standard relies on a 10 character HEX key for 40bit WEP and a 26 character HEX key for 128bit WEP.
In order to make things easier for people, vendors use certain algorithms to convert simple alphanumeric passwords (or passphrases) into HEX keys, thus enabling people to use simple memorable WEP password rather than lengthy HEX keys.
The problem is that different vendors use different algorithms to generate the HEX key and therefore a ASCII password on an AEBS will be hashed differently on a Netgear client and vice versa.
One thing is a 13 character 128 bit WEP password will be hashed by all vendors in the same way (if you use 40bit WEP then a 5 character password is required).
Though sometimes not even that works and the HEX key must be used regardless.
AirPort: Joining an encrypted wireless network
http://docs.info.apple.com/article.html?artnum=106424
Choosing a password for networks that use Wired Equivalent Privacy (WEP)
http://docs.info.apple.com/article.html?artnum=108058
iFelix