MacOS – Network problem isolated to this macbook air, where to look next

macbook promacosNetworkwifi

Periodically, once or twice a day, I'll start to experience network issues (latency and dropped packets) on this one machine while I'm browsing:

ping results

  • Other machines on the same Linksys WRT54G wireless network continue to function normally
  • I've attempted shutting down all running programs that I can identify
  • I've attempted disabling and re-enabling the wireless connection and reconnecting to the network

The only thing that seems to fix it is restarting the machine. So that's what I keep doing.

My best guess is I have either have something running on the machine that I haven't identified causing this issue … or …?

Very open to any ideas on where to look or what types of things might cause this 🙂

Best Answer

I advise you to download and run iStumbler http://istumbler.net/ on your Mac. Run it around the place where you want to work and at peek hours of the day (where your neighbours are also using their Wi-Fi PC and routers).

This run should give you a clear indication of which channels are received at a high power level. You should absolutely avoid these overloaded channels (most probably 1, 6 & 11) and pick a channel which is either free or received at the lowest signal level where and when you work.