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pcgecko85

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Dropped packets

Occasionally I will be unable to connect to any website(wireless or wired). Interestingly enough Skype continues to work.  Checking my router I see dropped packets. Here's my setup:

COX Preferred Internet in Orange County

Motorola SURFboard eXtreme Cable Model SB6141 (not purchased/rented from COX)

D-link N Gigabit Router DIR 655 ver B1

Sample logs for router:

Jun 21 12:52:58 info [1028962.930000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=175.181.37.156 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:51 info [1028955.940000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=177.228.184.175 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:49 info [1028953.770000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=187.59.126.184 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:42 info [1028947.010000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=220.58.148.3 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:36 info [1028941.080000] '[DROPPED-PACKET]:'IN=eth0.1 OUT= SRC=186.14.17.145 DST=68.5.16.121 PROTO=TCP SPT=59596 DPT=63830
Jun 21 12:52:31 info [1028935.400000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=179.232.115.203 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:31 info [1028935.380000] '[DROPPED-PACKET]:'IN=eth0.1 OUT= SRC=79.176.167.193 DST=68.5.16.121 PROTO=TCP SPT=64935 DPT=63830
Jun 21 12:52:29 info [1028933.810000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=75.172.27.46 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:25 info [1028930.060000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121 DST=181.1.183.176 PROTO=ICMP TYPE=3 CODE=3
Jun 21 12:52:20 info [1028924.910000] '[DROPPED-PACKET]:'IN= OUT=eth0.1 SRC=68.5.16.121

Any advice on tracking down the issue?

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Looks like your connecting to work VPN log ins or something similar, and the sites are having problems. All are error code 3/3 which is destination unreachable. See description below or here for more info. The fact its happening with ICMP and TCP makes me think its a network problem on their site, and not a website problem. See tracert below;

"The ICMP destination unreachable message is generated by a router to inform the source host that the destination unicast address is unreachable.

The IP header plus the first 8 bytes of the original datagram's data is returned to the sender. This data is used by the host to match the message to the appropriate process. If a higher level protocol uses port numbers, they are assumed to be in the first 64 data bits of the original datagram's data.

Tracing route to customer-GDL-184-175.megared.net.mx [177.228.184.175]

over a maximum of 30 hops:

1 1 ms 1 ms 1 ms 192.168.1.1
2 7 ms 7 ms 7 ms 10.2.x.x
3 117 ms 8 ms 69 ms 68.9.9.73
4 88 ms 10 ms 9 ms ip98-190-33-154.ri.ri.cox.net [98.190.33.154]
5 153 ms 15 ms 13 ms 68.1.5.161
6 23 ms 15 ms 15 ms te0-0-0-1.ccr21.jfk05.atlas.cogentco.com [154.54
.12.161]
7 14 ms 16 ms 14 ms be2063.mpd22.jfk02.atlas.cogentco.com [154.54.47
.57]
8 22 ms 21 ms 21 ms be2151.mpd22.dca01.atlas.cogentco.com [154.54.40
.73]
9 32 ms 33 ms 33 ms be2171.ccr42.atl01.atlas.cogentco.com [154.54.31
.109]
10 46 ms 47 ms 49 ms be2175.mpd22.iah01.atlas.cogentco.com [154.54.29
.222]
11 54 ms 53 ms 53 ms be2294.ccr21.sat01.atlas.cogentco.com [154.54.3.
126]
12 63 ms 69 ms 63 ms be2301.ccr21.elp01.atlas.cogentco.com [154.54.5.
174]
13 70 ms 70 ms 70 ms 38.104.193.2
14 66 ms 65 ms 65 ms 201-174-24-210.transtelco.net [201.174.24.210]
15 * * * Request timed out.
16 * * ^C

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