Hi everyone, always seem to get the best tips from these Support Communities! So here's my latest issue, would appreciate any input... I've been using the same DSL router for several years without any problem, and have had it connected to my Airport Extreme for almost 3 years to create a wireless network in our home. No problems at all with this set up at all, and we have many devices connected to it intermittently -- two Macbooks, two iphones, an ipad and an Apple TV. We also have a separate Airport Express that is solely used for wireless music in a separate room, and that connects to the Airport Extreme wireless network so we can use Apple Remote, etc.
All of a sudden I get a pop-up alert today that I have a "Double NAT" issue, and have one of two choices to resolve it, see the screenshot below:
Here's where things get really weird:
1) As I don't know anything about this type of error, I selected Bridge Mode, and when the Airport Extreme restarted, all of a sudden I saw multiple random airports (most likely my neighbors') appear in the Airport Utility. That definitely freaked me out.
2) I definitely need to maintain a Guest network, so from what I've been reading that basically eliminates the Bridge option anyway.
3) Here's where it gets super-weird -- a few weeks ago I had an IT guru friend do some troubleshooting on my network when the speeds were getting horribly slow. He suspected someone had managed to hack into my wireless network and was streaming a ton of data nonstop. I immediately changed the password and security settings, renamed the network and that fixed that problem.
I'm wondering if there's any relation between/among all these separate issues? Also from what I've been reading about Double NAT issues, I understand that the modem may be causing the problem, but as I mentioned earlier the modem has been in place for a long, long time, as has the Airport, both of them essentially undisturbed so my gut tells me it's unlikely the modem is causing the issue. Any thoughts, advice or input is much appreciated, thanks!