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Hello,
Sometimes my laptop ceases to open web-pages, however pings and torrents are OK.
After reboot all becomes normal. Below is three frames from Wireshark.
No. Time Source Destination Protocol Info
39 181.026989 192.168.1.100 74.125.43.139 TCP 52804 > http [SYN] Seq=0 Win=5360 Len=0 MSS=536 SACK_PERM=1 TSV=34115391 TSER=0 WS=1
Frame 39: 74 bytes on wire (592 bits), 74 bytes captured (592 bits)
Arrival Time: May 10, 2011 19:56:29.485042000 VLAST
Epoch Time: 1305017789.485042000 seconds
[Time delta from previous captured frame: 0.085569000 seconds]
[Time delta from previous displayed frame: 0.085569000 seconds]
[Time since reference or first frame: 181.026989000 seconds]
Frame Number: 39
Frame Length: 74 bytes (592 bits)
Capture Length: 74 bytes (592 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ip:tcp]
[Coloring Rule Name: HTTP]
[Coloring Rule String: http || tcp.port == 80]
Ethernet II, Src: AsustekC_22:02:4f (90:e6:ba:22:02:4f), Dst: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
Destination: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
Address: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Source: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
Address: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 192.168.1.100 (192.168.1.100), Dst: 74.125.43.139 (74.125.43.139)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 60
Identification: 0x25b5 (9653)
Flags: 0x02 (Don't Fragment)
0... .... = Reserved bit: Not set
.1.. .... = Don't fragment: Set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (6)
Header checksum: 0xdcf2 [correct]
[Good: True]
[Bad: False]
Source: 192.168.1.100 (192.168.1.100)
Destination: 74.125.43.139 (74.125.43.139)
Transmission Control Protocol, Src Port: 52804 (52804), Dst Port: http (80), Seq: 0, Len: 0
Source port: 52804 (52804)
Destination port: http (80)
[Stream index: 10]
Sequence number: 0 (relative sequence number)
Header length: 40 bytes
Flags: 0x02 (SYN)
000. .... .... = Reserved: Not set
...0 .... .... = Nonce: Not set
.... 0... .... = Congestion Window Reduced (CWR): Not set
.... .0.. .... = ECN-Echo: Not set
.... ..0. .... = Urgent: Not set
.... ...0 .... = Acknowledgement: Not set
.... .... 0... = Push: Not set
.... .... .0.. = Reset: Not set
.... .... ..1. = Syn: Set
.... .... ...0 = Fin: Not set
Window size: 5360
Checksum: 0x3843 [validation disabled]
Options: (20 bytes)
No. Time Source Destination Protocol Info
40 181.199718 74.125.43.139 192.168.1.100 TCP http > 52804 [SYN, ACK] Seq=0 Ack=1 Win=5672 Len=0 MSS=1360 SACK_PERM=1 TSV=1516298718 TSER=34080080 WS=6
Frame 40: 74 bytes on wire (592 bits), 74 bytes captured (592 bits)
Arrival Time: May 10, 2011 19:56:29.657771000 VLAST
Epoch Time: 1305017789.657771000 seconds
[Time delta from previous captured frame: 0.172729000 seconds]
[Time delta from previous displayed frame: 0.172729000 seconds]
[Time since reference or first frame: 181.199718000 seconds]
Frame Number: 40
Frame Length: 74 bytes (592 bits)
Capture Length: 74 bytes (592 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ip:tcp]
[Coloring Rule Name: HTTP]
[Coloring Rule String: http || tcp.port == 80]
Ethernet II, Src: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c), Dst: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
Destination: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
Address: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Source: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
Address: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 74.125.43.139 (74.125.43.139), Dst: 192.168.1.100 (192.168.1.100)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 60
Identification: 0x105f (4191)
Flags: 0x00
0... .... = Reserved bit: Not set
.0.. .... = Don't fragment: Not set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 50
Protocol: TCP (6)
Header checksum: 0x4049 [correct]
[Good: True]
[Bad: False]
Source: 74.125.43.139 (74.125.43.139)
Destination: 192.168.1.100 (192.168.1.100)
Transmission Control Protocol, Src Port: http (80), Dst Port: 52804 (52804), Seq: 0, Ack: 1, Len: 0
Source port: http (80)
Destination port: 52804 (52804)
[Stream index: 10]
Sequence number: 0 (relative sequence number)
Acknowledgement number: 1 (relative ack number)
Header length: 40 bytes
Flags: 0x12 (SYN, ACK)
000. .... .... = Reserved: Not set
...0 .... .... = Nonce: Not set
.... 0... .... = Congestion Window Reduced (CWR): Not set
.... .0.. .... = ECN-Echo: Not set
.... ..0. .... = Urgent: Not set
.... ...1 .... = Acknowledgement: Set
.... .... 0... = Push: Not set
.... .... .0.. = Reset: Not set
.... .... ..1. = Syn: Set
.... .... ...0 = Fin: Not set
Window size: 5672
Checksum: 0xc738 [validation disabled]
Options: (20 bytes)
[SEQ/ACK analysis]
No. Time Source Destination Protocol Info
41 181.199769 192.168.1.100 74.125.43.139 TCP 52804 > http [RST] Seq=1 Win=0 Len=0
Frame 41: 54 bytes on wire (432 bits), 54 bytes captured (432 bits)
Arrival Time: May 10, 2011 19:56:29.657822000 VLAST
Epoch Time: 1305017789.657822000 seconds
[Time delta from previous captured frame: 0.000051000 seconds]
[Time delta from previous displayed frame: 0.000051000 seconds]
[Time since reference or first frame: 181.199769000 seconds]
Frame Number: 41
Frame Length: 54 bytes (432 bits)
Capture Length: 54 bytes (432 bits)
[Frame is marked: False]
[Frame is ignored: False]
[Protocols in frame: eth:ip:tcp]
[Coloring Rule Name: TCP RST]
[Coloring Rule String: tcp.flags.reset eq 1]
Ethernet II, Src: AsustekC_22:02:4f (90:e6:ba:22:02:4f), Dst: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
Destination: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
Address: Tp-LinkT_c2:13:3c (00:27:19:c2:13:3c)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Source: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
Address: AsustekC_22:02:4f (90:e6:ba:22:02:4f)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
Type: IP (0x0800)
Internet Protocol, Src: 192.168.1.100 (192.168.1.100), Dst: 74.125.43.139 (74.125.43.139)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 40
Identification: 0x0000 (0)
Flags: 0x02 (Don't Fragment)
0... .... = Reserved bit: Not set
.1.. .... = Don't fragment: Set
..0. .... = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: TCP (6)
Header checksum: 0x02bc [correct]
[Good: True]
[Bad: False]
Source: 192.168.1.100 (192.168.1.100)
Destination: 74.125.43.139 (74.125.43.139)
Transmission Control Protocol, Src Port: 52804 (52804), Dst Port: http (80), Seq: 1, Len: 0
Source port: 52804 (52804)
Destination port: http (80)
[Stream index: 10]
Sequence number: 1 (relative sequence number)
Header length: 20 bytes
Flags: 0x04 (RST)
000. .... .... = Reserved: Not set
...0 .... .... = Nonce: Not set
.... 0... .... = Congestion Window Reduced (CWR): Not set
.... .0.. .... = ECN-Echo: Not set
.... ..0. .... = Urgent: Not set
.... ...0 .... = Acknowledgement: Not set
.... .... 0... = Push: Not set
.... .... .1.. = Reset: Set
.... .... ..0. = Syn: Not set
.... .... ...0 = Fin: Not set
Window size: 0
Checksum: 0x74ab [validation disabled]Any ideas why sends RST?
P.S. Sorry for my English.
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