devkitPro

I use the DSWIFI and TCP in an application and have found when there are other networks which share the same channel the wifi link appears to just freeze.

When it has a free channel available connection is generally very reliable. But the stack doesn't seem to handle other networks sharing the band very well.

I have confirmed issue is not at TCP level.
I can reconnect by doing a disconnect and reconnect at the wifi level.

Is there any setting to get the wifi to reconnect itself if it loses the access point for some reason?

Currently I just monitor my TCP socket for disconnection and use that to terminate my application, is there a means of checking the wifi level as well?

you could try checking the reults from Wifi_AssocStatus(). you could also try looking at your AP and see if it still associated - it wont help your app but at you could see if it is the problem.