We have frequent connectivity issues in our apt. 2 MacBooks, 3 devices and the smaller Airport Express. Cable ISP. I have reset my MacBooks' System config and used a custom MTU of 1453 and things seem to be good today. But I haven't touched my Airport Express Utility yet. Any suggestions? I renewed the DHCP Lease in OSX Network Settings. Should I also do that in Airport Utility or is that redundant? What about Advanced settings like Internet Options and Wireless Options?