Hi all. This is my first experience with Wireshark. It seems quite powerful, and I hope it can help me track down my issue.
I have 2 computers that I connect via a standard ethernet cable. They ping each other, and the pings connect solidly over the course of ~45 seconds. Then at that time, they fail to connect, and remain in that state permanently. I have the Wireshark output during all of this. But I don't know how to interpret the entries to troubleshoot the failed connection.
My 2 computers are:
192.168.1.5 - Desktop
192.168.1.6 - Laptop
They are the only 2 devices on my network, besides my iphone (192.168.1.4).
I'm so novice, I don't even know how to best insert Wireshark output into this post :-/ Here is the best I could do (sorry, no color coding--I'd love to learn how though). The first 2 entries are the last successful ping request/reply pair (I have omitted the previous). Then there are a bunch of entries that are unknown to me. Then the 3rd to last entry contains the first unanswered ping request.
3115 533.729890000 192.168.1.5 192.168.1.6 ICMP 74 Echo (ping) request id=0x0001, seq=540/7170, ttl=128 (reply in 3116)
3116 533.730324000 192.168.1.6 192.168.1.5 ICMP 74 Echo (ping) reply id=0x0001, seq=540/7170, ttl=128 (request in 3115)
3117 533.731652000 D-LinkIn_47:57:3c Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.5 (duplicate use of 192.168.1.5 detected!)
3118 533.849742000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
3119 533.873497000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
3120 533.875137000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
3121 533.891959000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
3122 533.894931000 fe80::6406:d055:d00f:b955 ff02::1:3 LLMNR 84 Standard query 0x494c A wpad
3123 533.896001000 fe80::6406:d055:d00f:b955 ff02::1:3 LLMNR 92 Standard query 0x3b26 ANY dragonblight
3124 533.905965000 fe80::6406:d055:d00f:b955 ff02::c UDP 1054 Source port: 61731 Destination port: 3702
3125 533.994791000 fe80::6406:d055:d00f:b955 ff02::1:3 LLMNR 84 Standard query 0x494c A wpad
3126 533.995849000 fe80::6406:d055:d00f:b955 ff02::1:3 LLMNR 92 Standard query 0x3b26 ANY dragonblight
3127 534.096998000 fe80::6406:d055:d00f:b955 ff02::c UDP 1054 Source port: 61731 Destination port: 3702
3128 534.111754000 fe80::6406:d055:d00f:b955 ff02::c SSDP 179 M-SEARCH * HTTP/1.1
3129 534.139202000 fe80::6406:d055:d00f:b955 ff02::c SSDP 181 M-SEARCH * HTTP/1.1
3130 534.254803000 D-LinkIn_47:57:3c Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.5 (duplicate use of 192.168.1.5 detected!)
3131 534.273732000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
3132 534.730984000 192.168.1.5 192.168.1.6 ICMP 74 Echo (ping) request id=0x0001, seq=541/7426, ttl=128 (no response found!)
3133 535.254859000 D-LinkIn_47:57:3c Broadcast ARP 42 Who has 192.168.1.1? Tell 192.168.1.5 (duplicate use of 192.168.1.5 detected!)
3134 535.895965000 fe80::6406:d055:d00f:b955 ff02::16 ICMPv6 90 Multicast Listener Report Message v2
asked 17 Aug ‘15, 15:46
cag8f
6●1●1●4
accept rate: 0%
Thanks for the reply. I saw that duplicate IP address notification. But I managed to resolve this particular issue. I set a static IP for each machine, then connected them directly via ethernet. Pings to each other connected without issue, indefinitely.
This is all however, in an attempt to troubleshoot a more overarching issue I'm having with my 2 computers. I will create a new post for that.
Thanks again.
edit: I should note that there were no other devices (that I know of) connected to this router. It is my personal router at home.