Windows 10: Router causes internet speeds to drop to 7-9mps from 50-60mps

Hi,

I have an Arris Surfboard cable modem SB6141, when I connect PC using ethernet cable directly to modem I get 50-60mps download speeds.

When a router is between the modem and my PC the download speed drops to 6-8mps..

I have confirmed this issue with two different routers:
1) Linksys AC1200 which was brand new, was getting 50-60mps then down to 6-8 range.

2) TP-link AC 1750, firmware is up to date.

2A) did trouble shooting with TP-link support, nothing found..
2B) Was able to very briefly get 60mps when I turned off WIFI. But it went right back to 6-8 range..


Tried to uninstall software, log off, internet, mail accounts, etc..


- Have done full virus scan and reboot virus scan. Nothing found..


I have to believe the issue is on the Windows side, but what?

Dan

:)

 

New laptop with Wifi Ac and Verizon Qualcomm router major speed drop

Open Settings, then Network & Internet, then Network and Sharing Center. Your WiFi connection will be shown under Active Networks. Click on the "link" for your WiFi connection. What speed is listed under Connection?

 

Speed drop if going through a router, fine if wired direct from modem

I have a Docsis 3.0 motorola modem (provided by Spectrum). If I connect the ethernet from the modem direct to my PC, i immediately get full bandwidth, 120 Mbps, on all speedtests (fast.com etc). However, if I first go to my router, then ethernet to the PC, the speed drops to around 55 or 60 Mb. An important note here is that this combo has worked fine for several years. Same modem, same ethernet cable, same router. (I say that because it illustrates the older router, cable, and modem are capable of full my full bandwidth) This issue just popped up yesterday (Apr 20)

The oddity here is that purchasing and trying a brand new router with all the latest tech renders the exact same results. 55 to 60 Mb speed. The tests are very very consistent. Always the same each time, no variation. Same goes for wiring direct from modem to PC. Always 120 Mb.

The upload speed is always 100% good. Both direct to PC and through both routers, 12 Mb up.

The 55-60 speed (wired) is consistent on 3 different PC's in the house. Two are Win10, one is an older Win7 laptop. And I got that speed on the other PC's with the new router as well.


Here's what I've tried so far:

• rebooting modem & router & PC (several times each)
• different ethernet cable from modem to router and to PC (same results)
• 2nd, brand new router (same results)
• disconnected all wires from modem (coax, ethernet, power) and re-connected
• read through this thread. My symptom is similar, (120 --> 60 drop, download only), however I don't think it's relevant, because I get full speed as I should if I go direct from modem to PC ethernet in. If it were a software issue, I would think that would persist direct wired or via a router. Either way, none of the fixes in that thread helped me.
• updated older router's firmware to latest, though even that update was from 4 years ago.

Thanks for any and all suggestions!

 

Wifi speed down and dropping continuously after restoring router to factory settings.

Hi i have a NETGEAR Router DGND3700v2 and as the title states my internet connection keeps dropping and the download speed isn't what it used to be, im just looking for some help on how i can fix this issue.

I used to get around 700KB/s - 1MB/s download speed and the internet connection never dropped.

Ive tried changing the channels and MTU and although the speed did increase its nowhere near how it used to be.