Upload speed is less than 1 Mb (instead of 200) while upload speed is fine.

[krtshv]

Okay so I've got a problem that has got me dumbfounded.
I got this problem where for some reason, lately, my upload speed on my PC is between 0.05 and 0.35 instead of my usual 200 Mb. I called up my ISP and infrastructure provider and we've concluded that the problem is not on their end.

I am connected via fiber, so I figured, "okay, I'll just circumvent my router and plug directly to the wall". I did that, same issue, upload is still the same. I figured my network card is broken or something so I got a Wireless USB card I had laying around and plugged it in (after connecting my router to the RJ45 socket and using the wireless card to connect on my PC). Same problem, upload is still zilch.

I connected my NUC, which is nearby, using the same cable and the speed is 200/200.
I figured something on my PC, which is not my motherboard's network connection, is screwing up my speed and I just can't figure out what might that be.

I turned off my AV completely, got not firewalls on and I can't think of anything else. Can anyone please help me solve this? Due to this lack of upload speed I'm losing packets left and right and everything takes ages to work.

 

[iceblitzed]

1. Try this antimalware program. It usually detects and fixes problem that most AVs dont catch:
http://www.bleepingcomputer.com/download/combofix/

2. If that doesn't work, try the following:
1. Click Start > All Programs > Accessories, right-click on Command Prompt and choose Run as administrator. Windows 8 users press [Windows Key] + [X] and select Command Prompt (Admin).
2. At the command prompt type: netsh winsock reset catalog and press [Enter].
3. Next type: netsh int ip reset reset.log and press [Enter].
4. Restart your PC for the changes to take effect.

3. Last, try a program called tcpoptimizer and do the following:
1. Go to file --> backup current settings --> Select save on the save dialog window
1. Select your advertised maximum internet speed from the "connection speed" slider bar. (the maximum available bandwidth, in kilobits or megabits per second, not your LAN speed).
2. Choose your Network Adapter, or check to "Modify All Network Adapters" (especially if using another type of connection).
3. Choose the "Optimal settings" radio-button near the bottom of the program.
4. Click "Apply changes", and reboot when prompted by the program.
5. If the new settings are causing trouble with your connection, choose restore windows default on the bottom of the screen. Click apply changes. Restart computer

 

[krtshv]

1. Try this antimalware program. It usually detects and fixes problem that most AVs dont catch:
http://www.bleepingcomputer.com/download/combofix/

2. If that doesn't work, try the following:
1. Click Start > All Programs > Accessories, right-click on Command Prompt and choose Run as administrator. Windows 8 users press [Windows Key] + [X] and select Command Prompt (Admin).
2. At the command prompt type: netsh winsock reset catalog and press [Enter].
3. Next type: netsh int ip reset reset.log and press [Enter].
4. Restart your PC for the changes to take effect.

3. Last, try a program called tcpoptimizer and do the following:
1. Go to file --> backup current settings --> Select save on the save dialog window
1. Select your advertised maximum internet speed from the "connection speed" slider bar. (the maximum available bandwidth, in kilobits or megabits per second, not your LAN speed).
2. Choose your Network Adapter, or check to "Modify All Network Adapters" (especially if using another type of connection).
3. Choose the "Optimal settings" radio-button near the bottom of the program.
4. Click "Apply changes", and reboot when prompted by the program.
5. If the new settings are causing trouble with your connection, choose restore windows default on the bottom of the screen. Click apply changes. Restart computer

Tried all 3, none solved the problem so far (the first one isn't compatible with Windows 10).

 

[iceblitzed]

as a last resort sorta risky. use this program http://www.majorgeeks.com/files/details/complete_internet_repair.html

check the first four boxes and click repair. This program is risky according to the author of the program. I doubt it would do anything to your computer but im just saying. If the first four boxes checked dont work, then you might as well check all the boxes.

 

[Kewlx25]

Do you have any 3rd-party "gaming" software installed, like for a Killer Network card, Asus iControl, or cFosSpeed?

 

[krtshv]

as a last resort sorta risky. use this program http://www.majorgeeks.com/files/details/complete_internet_repair.html

check the first four boxes and click repair. This program is risky according to the author of the program. I doubt it would do anything to your computer but im just saying. If the first four boxes checked dont work, then you might as well check all the boxes.

Thanks! That fixed it!