Hi,
I've been trying to troubleshoot the problems many of us have been experiencing with wireless connectivity on the new 384 code base. I've been doing packet caputres and looking through logs to try and find a common thread for why/when the problem occurs on my ac88. Here is something interesting i found.
I started doing a network capture while i was experiencing problems with throughput and latency on the 2.4ghz. Wired and 5ghz appeared to be working fine.
A few observations from the packet caputre...
High latency just pinging the router interface on 2.4 ghz with only 2 hosts connected
lots of tcp spurios retransmissions, dup ack and resets
no ssdp traffic which is very common normally
lots of duplicate and repeated dhcprequest and dhcpack over and over in the logs and no dhcp in the traffic
and lots of issues with arp
and when checking the arp table on the router - lots of arp incomplete
this all the while there is continuous ping running between the workstation and router.
basically all of the symptoms of a layer 2 meltdown anyone else looking into this? I've tried to open up a case with asus to see if i can track this down.
I've been trying to troubleshoot the problems many of us have been experiencing with wireless connectivity on the new 384 code base. I've been doing packet caputres and looking through logs to try and find a common thread for why/when the problem occurs on my ac88. Here is something interesting i found.
I started doing a network capture while i was experiencing problems with throughput and latency on the 2.4ghz. Wired and 5ghz appeared to be working fine.
A few observations from the packet caputre...
High latency just pinging the router interface on 2.4 ghz with only 2 hosts connected
lots of tcp spurios retransmissions, dup ack and resets
no ssdp traffic which is very common normally
lots of duplicate and repeated dhcprequest and dhcpack over and over in the logs and no dhcp in the traffic
and lots of issues with arp
Code:
10 4.190196 AsustekC_21:17:f0 IntelCor_29:dc:95 ARP 42 Who has 192.168.1.126? Tell 192.168.1.1
12 4.190232 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 192.168.1.126 is at 14:ab:c5:29:dc:95
27 12.085077 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
28 12.150206 AsustekC_21:17:f0 IntelCor_29:dc:95 ARP 42 192.168.1.1 is at 2c:4d:54:21:17:f0
90 39.798098 AsustekC_21:17:f0 IntelCor_29:dc:95 ARP 42 Who has 192.168.1.126? Tell 192.168.1.1
92 39.798142 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 192.168.1.126 is at 14:ab:c5:29:dc:95
93 40.584450 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
95 41.573567 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
96 42.583403 IntelCor_29:dc:95 AsustekC_21:17:f0 ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
97 45.598593 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
98 46.582523 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
99 47.572151 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
100 48.581563 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
101 49.576399 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
102 50.581669 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
103 51.585371 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
104 52.582358 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
105 53.582136 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
106 54.577736 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
107 55.574946 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
108 56.584652 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126
109 57.590226 IntelCor_29:dc:95 Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.126and when checking the arp table on the router - lots of arp incomplete
this all the while there is continuous ping running between the workstation and router.
basically all of the symptoms of a layer 2 meltdown anyone else looking into this? I've tried to open up a case with asus to see if i can track this down.
