Internet unfluentFollow

Ok, going to need more information to be helpful here. First off, define Laming. what is it doing specifically? Is it just slow? is it not working at all? is it throwing random extra advertisements at you? or something else.

Next, when you say "share a connection" do you mean that you physically plug the same network cable into each device, or do you have them both attached to the same router or switch? If it isn't the same cable, try swapping the two cables and see if the problem shifts to the laptop. if it does, you probably have a faulty network cable or potentially a faulty port on your router. If switching the cables has no effect, the issue is probably with the desktop computer.

If thats the case, we need more information to troubleshoot. What internet browser / version do you use? What antivirus software do you have installed, and is it updated? What operating system? Are your patches for that operating system fully up to date?

While you are getting all that information, check out our computer security post of doom and try all the things in it: https://everquest.allakhazam.com/forum.html?forum=25&mid=130025123118577481

Since I wrote that, it's basically most of the troubleshooting steps I'm going to have you do anyways depending on your answers to the above questions.

To figure out which motherboard you have, download the free CPU-z here: http://www.cpuid.com/softwares/cpu-z.html

The mainboard tab will have your motherboard make and model. From there you just go to the manufacturer website and get all the drivers. If you have missing drivers that you want to know what they are, you can usually find them via Unknown Device Identifier. http://www.zhangduo.com/udi.html Also free. There are decent driver automaticic updators, but there aren't any good free driver updators that I have found at this point. All the decent ones want money.

missing chipset and older, incorrect network card drivers can interfere with network traffic, so you'll want to start with those.

If you think it might be malware, I'd download malwarebytes and let it take a look. Spybot is good, but Malwarebytes sometimes picks up things it misses, though the reverse is also true. http://download.cnet.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?part=dl-10804572&subj=dl&tag=button

if malwarebytes comes up with nothing, and none of your other scans show anything, it might be a software issue. that or a really sneaky virus capable of generating false negative reports. Where I would usually go next if I don't see a virus, would be to download wireshark http://www.wireshark.org/ and point it at the network connection that is having issues, then capturing packets for a while and seeing if anything stands out as an issue. That's definitly the advanced class method of troubleshooting though. I can help you interperit the log file if you want to PM it to me, but be aware that any passwords or user ID's or sensitive information that you send over the network (logging into a game, or a website, etc.) while that packet capture is running will be contained inside the capture log.

If you decide to look into it yourself, any red and black entries usually indicate packet problems. you'll want to check and see whether they occur on transmit or recieve, and if they follow any odd traffic. If you do have a virus, you'll often see something trying to repeatedly connect to website IP's in foreign countries that you didn't initiate, particularily russia or China.

Yup, oddly stacked antivirus and toolbar components can definitly cause problems. glad you got it figured out.