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Issues with Airport Extreme
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Senior User
Join Date: Jun 1999
Location: San Jose, CA
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Apr 3, 2006, 05:31 PM
 
I recently started having some issues with my home network. I live in an apartment complex, and when doing a site survey from my location, I pickup between 8 and 11 other wireless networks. Most are on Channel 6, with one on channel 11, and another on channel 8. We have an Airport Extreme, and it sits on Channel 1. The problem is we have recently been getting a lot of lag, and slow internet response times. I called comcast, and everything checks out (no dropped packets, and 45ms ping times). I tried directly connecting to the modem, and am getting very similar results. However, when connected through the airport to the internet, I can get up to 50% packet loss. So something isn't correct.

Here is the result of a ping -c30 192.168.1.1 command:
Code:
Last login: Mon Apr 3 14:38:25 on ttyp3 Welcome to Darwin! Laptop-Computer:~ kupan787$ ping -c30 192.168.1.1 PING 192.168.1.1 (192.168.1.1): 56 data bytes 64 bytes from 192.168.1.1: icmp_seq=0 ttl=64 time=94.357 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.125 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=1.667 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=1.161 ms 64 bytes from 192.168.1.1: icmp_seq=5 ttl=64 time=71.434 ms 64 bytes from 192.168.1.1: icmp_seq=7 ttl=64 time=1.818 ms 64 bytes from 192.168.1.1: icmp_seq=8 ttl=64 time=1.145 ms 64 bytes from 192.168.1.1: icmp_seq=10 ttl=64 time=57.337 ms 64 bytes from 192.168.1.1: icmp_seq=11 ttl=64 time=1.303 ms 64 bytes from 192.168.1.1: icmp_seq=12 ttl=64 time=1.340 ms 64 bytes from 192.168.1.1: icmp_seq=13 ttl=64 time=1.307 ms 64 bytes from 192.168.1.1: icmp_seq=14 ttl=64 time=135.799 ms 64 bytes from 192.168.1.1: icmp_seq=15 ttl=64 time=43.158 ms 64 bytes from 192.168.1.1: icmp_seq=16 ttl=64 time=11.251 ms 64 bytes from 192.168.1.1: icmp_seq=18 ttl=64 time=124.618 ms 64 bytes from 192.168.1.1: icmp_seq=19 ttl=64 time=8.795 ms 64 bytes from 192.168.1.1: icmp_seq=21 ttl=64 time=2.909 ms 64 bytes from 192.168.1.1: icmp_seq=23 ttl=64 time=111.561 ms 64 bytes from 192.168.1.1: icmp_seq=24 ttl=64 time=4.747 ms 64 bytes from 192.168.1.1: icmp_seq=25 ttl=64 time=43.237 ms 64 bytes from 192.168.1.1: icmp_seq=26 ttl=64 time=1.703 ms 64 bytes from 192.168.1.1: icmp_seq=27 ttl=64 time=1.650 ms 64 bytes from 192.168.1.1: icmp_seq=28 ttl=64 time=45.900 ms 64 bytes from 192.168.1.1: icmp_seq=29 ttl=64 time=1.619 ms --- 192.168.1.1 ping statistics --- 30 packets transmitted, 24 packets received, 20% packet loss round-trip min/avg/max/stddev = 1.125/32.123/135.799/43.322 ms
As you can see, just pinging my airport router, I get high ping times, and dropped packets. And this is sitting just 1 foot from the airport unit!

I have Interference Robustness turned on. I have transmission power set to 100%. I have the multicast rate set to 2. I have it set on 802.11 b/g mode. I have it set to filter out on MAC addresses, so only me and my roommates can connect. Could it be that there are too many networks in the area causing issues? We haven't had problems before, it just started recently. Any help is appreciated here guys, as I want to get things back to normal.
     
Senior User
Join Date: Jun 1999
Location: San Jose, CA
Status: Offline
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Apr 4, 2006, 03:18 AM
 
Replying to my own thread...

I don't know if it is because 6 wireless networks suddenly disappeared, or its because I am now using the Airport in AP only mode, and have a linksys 4 port router handling the routing that made the difference, but either way things are back to normal. I get regular pings to the airport of 2-7ms (with the 2-3 packet spike up to 90ms..)
     
   
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