Keep losing internet connection every couple hours

[Subterfuge]

Every now and then I seem to lose my internet connection for a few seconds. For example, if I'm playing an online game, it'll lag like crazy and I lose control for a few seconds, then it goes back to normal again. If I'm messaging on MSN, I wont recieve a few messages from the person who sent them. If I'm just browsing the net, I'll get a page as if I'm not connected but if I refresh it, it works again. This seems to happen every other hour or so, I'm not sure how often it is exactly, and it only lasts for a few seconds. Anyone have any idea of what could be causing it and how to fix it? I have a 24Mbit/1Mbit connection and I'm using a D-Link DIR-655 router, connected through a wire.

[Goliard]

So many varieables so lil info to start from.
Try the usual suspects, scan for viruses/spyware, check firewall/antivirus/antispyware config, network connection configration, check Eveint Viewer for error messages, Sceduled Tasks for cpu hogs, auto updaters, check firewall log see if anything else trying to connect at the time it happens, cable conections, modom/hub to close to electral device getting electromagnetic inerfearince, try connecting directly insted of through hub, try diffrent modom if one avaiable , if you installed any new programs at the time it started temporarily disable them to see if one is the culpret, call an b**ch to provider, etc etc, a lil more info on your system would help

[trogers]

Sounds like problem with packet losses. Post a TCP Analyzer report.

[Subterfuge]

Not sure what info would be useful but I'm using Windows XP on a laptop, it's clean from spyware/viruses and I've turned off the firewalls in XP and the router. Here's a TCP Analyzer report:

« SpeedGuide.net TCP Analyzer Results »
Tested on: 05.19.2008 14:19
IP address: 83.249.xxx.xxx

TCP options string: 020405b40103030301010402
MSS: 1460
MTU: 1500
TCP Window: 513920 (multiple of MSS)
RWIN Scaling: 3
Unscaled RWIN : 64240
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 20557kbps (2570KBytes/s)
BDP limit (500ms): 8223kbps (1028KBytes/s)
MTU Discovery: ON
TTL: 37
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

[Goliard]

Not all laggs an freeze ups can be blamed on provider or settings especially while gameing or useing multiple programs at a time.

Is it just the net or do the rest of your programs slow to a crawl for those few seconds?

Try A: leaving task manager on with networking tab up, bytes sent/reseved per inetrval colum visible, see if theres unusually high cpu useage when graph numbers drop off, to check possability it's a program causeing it.
B: task manager open to processes, cpu colum clicked to have max useage at the top, see which are running and how much cpu there useing at the time.

[Subterfuge]

Here's what the log in my router says, the problem happened sometime during this timeframe:

[INFO] Thu May 22 21:10:47 2008 Blocked incoming UDP packet from 24.64.187.229:13069 to 83.249.145.234:1026
[INFO] Thu May 22 21:10:47 2008 Blocked incoming UDP packet from 24.64.187.229:13069 to 83.249.145.234:1028
[INFO] Thu May 22 21:10:47 2008 Blocked incoming UDP packet from 24.64.187.229:13069 to 83.249.145.234:1027
[INFO] Thu May 22 21:05:21 2008 Blocked incoming UDP packet from 24.64.238.89:2659 to 83.249.145.234:1027
[INFO] Thu May 22 21:05:21 2008 Blocked incoming UDP packet from 24.64.238.89:2659 to 83.249.145.234:1028
[INFO] Thu May 22 21:05:21 2008 Blocked incoming UDP packet from 24.64.238.89:2659 to 83.249.145.234:1026
[INFO] Thu May 22 21:05:15 2008 Wireless system with MAC address 0017ABD5409B disconnected for reason: Received Deauthentication.
[WARN] Thu May 22 21:05:03 2008 A network computer (Wii) was assigned the IP address of 192.168.0.111.
[INFO] Thu May 22 21:05:03 2008 Wireless system with MAC address 0017ABD5409B associated
[INFO] Thu May 22 21:04:19 2008 Blocked incoming UDP packet from 81.155.0.140:6000 to 83.249.145.234:6000

I don't know if any of that is normal, don't really know too much about routers so I haven't changed a lot of settings from the default ones.

[trogers]

Explain your network setup and what brand and model of router and modem. How many comps on the network, wired or wireless?

[Subterfuge]

Explain your network setup and what brand and model of router and modem. How many comps on the network, wired or wireless?

The modem is a Motorola SB5100E SURFboard and the router is a D-Link DIR-655. I have a PC and PS3 wired to the router, and a Wii connected wirelessly. Using WPA2 AES if that matters.

[trogers]

The modem is a Motorola SB5100E SURFboard and the router is a D-Link DIR-655. I have a PC and PS3 wired to the router, and a Wii connected wirelessly. Using WPA2 AES if that matters.

Do tracerts to www.yahoo.com for both your PC and the laptop and post them. We can then look for any abnormal ping spikes.

[Subterfuge]

Do tracerts to www.yahoo.com for both your PC and the laptop and post them. We can then look for any abnormal ping spikes.

The PC is off having a faulty motherboard exchanged right now, but here's a tracert from the laptop:

Tracing route to www.yahoo-ht3.akadns.net [87.248.113.14]
over a maximum of 30 hops:

1 4 ms 3 ms 3 ms c83-249-144-1.bredband.comhem.se [83.249.144.1]
2 6 ms 5 ms 5 ms hs-bb-r-01-to-hs-ubr-01-2.comhem.se [83.255.240.201]
3 7 ms 6 ms 5 ms hlm-bb-r-01-to-hs-bb-r-01.comhem.se [83.255.252.168]
4 8 ms 8 ms 7 ms ld-bb-r-01-to-hlm-bb-r-01.comhem.se [83.255.252.164]
5 25 ms 199 ms 8 ms lib-bb-r-01-to-ld-bb-r-01.comhem.se [83.255.252.160]
6 15 ms 13 ms 12 ms lib-pr-r-01-to-lib-bb-r-01.comhem.se [83.255.252.226]
7 8 ms 9 ms 7 ms kbn-b1-lunk.telia.net [213.248.97.253]
8 8 ms 7 ms 7 ms kbn-bb1-link.telia.net [80.91.250.91]
9 16 ms 15 ms 15 ms hbg-bb1-link.telia.net [80.91.252.110]
10 29 ms 30 ms 29 ms ldn-bb1-link.telia.net [80.91.249.10]
11 40 ms 42 ms 39 ms dln-b1-link.telia.net [80.91.250.85]
12 99 ms 40 ms 40 ms yahoo-115023-dln-b1.c.telia.net [213.155.141.182]
13 40 ms 44 ms 40 ms ge-1-3.bas-b1.ird.yahoo.com [87.248.101.5]
14 38 ms 39 ms 40 ms f1.us.www.vip.ird.yahoo.com [87.248.113.14]

Trace complete.

[trogers]

The PC is off having a faulty motherboard exchanged right now, but here's a tracert from the laptop:

Tracing route to www.yahoo-ht3.akadns.net [87.248.113.14]
over a maximum of 30 hops:

1 4 ms 3 ms 3 ms c83-249-xxx-x.bredband.comhem.se [83.249.xxx.x]


I do not see the router's IP address in hop 1 of your tracert. It should be 192.168.0.1 or 192.168.1.1

Did you setup your DLink correctly?

[Subterfuge]

I do not see the router's IP address in hop 1 of your tracert. It should be 192.168.0.1 or 192.168.1.1

Did you setup your DLink correctly?

I've just assumed that I did it correctly, since it's working and I have the speed I'm paying for. I don't know if this is a dumb question but is there a proper way to setup the D-Link router?

[trogers]

I've just assumed that I did it correctly, since it's working and I have the speed I'm paying for. I don't know if this is a dumb question but is there a proper way to setup the D-Link router?

You can download the DLink manual from this link:

http://www.dlink.com/products/?pid=530

As you are on cable internet, page 19 of this manual will guide you on setting up a Dynamic IP (DHCP) connection.

[Subterfuge]

You can download the DLink manual from this link:

http://www.dlink.com/products/?pid=530

As you are on cable internet, page 19 of this manual will guide you on setting up a Dynamic IP (DHCP) connection.

It is set to DHCP and Unicasting is enabled, MTU is set to 1500. Primary and Secondary DNS servers are both just 0's, I guess cause I automatically recieve those which is how it has always been during my years of a broadband connection. The MAC address is also just 0's, so not sure if I can change anything here? I've been looking at some other DHCP settings in the manual and on page 29, there are some other options, particularly DNS relay which is enabled in my router... don't know if that could be the problem?

[trogers]

It is set to DHCP and Unicasting is enabled, MTU is set to 1500. Primary and Secondary DNS servers are both just 0's, I guess cause I automatically recieve those which is how it has always been during my years of a broadband connection. The MAC address is also just 0's, so not sure if I can change anything here? I've been looking at some other DHCP settings in the manual and on page 29, there are some other options, particularly DNS relay which is enabled in my router... don't know if that could be the problem?

I suggest you log into your router as shown in page 14 and run the Setup Wizard shown in page 15.

The router should detect automatically, most of the connection properties of your ISP.