imac wifi really slow

I have finally got my imac and once set up and ready to go noticed the internet is really slow, my mbp is still working fine though, have a netgear modem that has been extended with an airport express , I have hard wired imac to airport express and it is super quick but I need the express nearer my amp so realy need to get wifi sorted, any help would be much appreciated

I have finally got my imac and once set up and ready to go noticed the internet is really slow, my mbp is still working fine though, have a netgear modem that has been extended with an airport express , I have hard wired imac to airport express and it is super quick but I need the express nearer my amp so realy need to get wifi sorted, any help would be much appreciated

It's worth using a free tool like iStumbler to ensure the channel your wifi is using is as far away from nearby wifi signals as possible.

Posting a question yay, cross posting not yay

I've replied to you other thread. Please don't cross-post.

@schnipster

Please do not cross post. Only post your question to one forum and continue the thread there. Your posts have been merged together here.

Thanks.