Question Extremely Slow Uploads on 1 Desktop, Not on Other

[tel51]

I'm stumped and need some advice.

The Facts:
o Recently upgraded from 75/75 Fios with G1100 router to 100/100 service with G3100 router.
o Have two fairly new i7 Windows 10 computers, fully updated, both connected via ethernet
o Have scanned both computers for viruses and malware
o No problems until recent speed and router change
o System #1 has good download speeds. Upload speeds slightly below the 100 mbs level
o System #2 has good download speeds. Upload speeds are terrible and there is noticeable lag doing any work on the internet even just surfing or checking mail
o However, Verizon speed test and Okla speed test report all is good most of the time. But Speed of Me Speed Test is showing the horrible upload speeds and is probably closer to right based on actual experience.
o Since Verizon speed test is generally ok, can't really demonstrate the problem to Verizon tech online
o Occasionally have very bad latency #'s in the 1000's
o Have swapped ethernet cables and Lan ports on router. Same results.
o Here are some stats for System #1 and #2 all within a few minutes of each other

# Date / Time Download Upload Latency
1 1/30/2021 9:00 118.32 93.96 19
2 1/30/2021 9:00 118.29 1.93 3273
1 1/30/2021 9:02 118.32 45.09 18
2 1/30/2021 9:02 118.38 1.93 17
2 1/30/2021 9:04 118.47 1.94 16
1 1/30/2021 9:06 116.66 84.43 17
2 1/30/2021 9:07 118.44 1.93 15
2 1/30/2021 9:09 112.96 1.93 18

Any suggestions on where I go from here would really be appreciated.

 

[Ralston18]

Noted that you posted in Wireless Networking. Not a problem per se but do need to confirm that you are using wired connectivity for both systems - correct?

We can move the post to Networking if and as necessary.

=====

When you swapped Ethernet cables did you switch cables between System #1 and System #2?

Or just install a new, known working at speed, Ethernet cable for System #2.

Try running the built-in Windows Troubleshooters on System #2. The troubleshooters may find and fix something.

Also try "sfc /scannow" and "dism".


https://www.lifewire.com/how-to-use-sfc-scannow-to-repair-windows-system-files-2626161

https://www.howtogeek.com/222532/ho...-system-files-with-the-sfc-and-dism-commands/

 

[tel51]

I wasn't sure which forum to post in since I'm using both wireless and wired devices, but the one I'm having problems with is wired.

I disconnected the Ethernet cables from the router and from each system and swapped them. Same issue. Then I took the problem computer's cable and plugged it into a different LAN port. Same problem. I've run the troubleshooter. No problem reported. I have not run sfc or dism since making the change. Will do it tomorrow since my better half is currently using system #2 (and complaining about the abysmal speed). Seems really strange that Speed of Me speed test is reporting the slow upload speed, but the two other speed tests are not. Speed of Me must be giving the correct reading since it's taking forever for the system to respond to even minimal demands.

Will get back after I've run sfc and dism.

PS: Chatted with one tech who suggested I needed to buy a faster internet plan even though I have exactly the same wired and wireless devices running and my 75/75 plan with the G1100 router was working fine. Maybe I need to drop to a slower plan, not go up to a faster plan?!? By the way, the maximum demand I'm putting on the network at any one time (maximum!!! normally it's less) is streaming one 1080p movie, an ehternet-connected desktop, an ipad and 3 amazon echos. 100 Mbs should be more than enough from what I see. Even 50 Mbs should handle the load.

 

[LTC59]

I got "much" worse (about 40% "loss" of) upload speed when testing briefly with Google speedtest (I didn't know that existed) compared to using speedtest.net. The Google test reported a server which was much farther away than the servers speedtest.net (Ookla) used, so that explains a bit/the whole of the difference. You can really only test "reliably" between you and your ISP (or the closest available test server) any farther away test servers will of course tell you how fast that "connection" is but your ISP can only "guarantee" their connection, not to anything beyond their own network. "Net neutrality" anyone? Also speed may vary depending on load, time of day/week, distance/country (yes there is a world outside of the US with varying degree of Internet connection speed/quality ) and such. And I guess all ISPs "oversell" capacity (like when you by a airplane ticket). There is also a big difference in cost of an ISP connection if you are a business or not and pay a lot extra for guaranteed speed and "up time" (+ if you can call them 24/7/365 and get help - otherwise...).

 

[tel51]

An Update

First, an added "fact"
In case it's important, I have a coax connection from my ONT to the Router. I do not have the ethernet connection. I do have ethernet from the router to two rooms in my home through wiring that I had installed when the home was constructed. Also, have just recently dropped TV to move to streaming. That's why I upgraded speed from 75/75 to 100/100 and upgraded the router. Am considering purchasing my own router and having Verizon switch me from Coax to Ethernet line between ONT and Router. Will either need to leave a panel door open for Ethernet cable or add some internal wiring if I make that change. Any opinions? Seems like the Coax should work about same as Ethernet up to 100 Mbs (my current service level). I don't see any need to go to a higher speed once I can get the current service working properly.

Now the update. I posted my current problem to another message board I visit regularly (DSL Forum). One responder mentioned that I should have lower latency speeds with Fios, something like 3 to 4 ms on a wired connection and 7-9 ms on a wireless connection. Hadn't even thought about the latency being high since it has always run in the range of 18-22 with the occasional blip lower and higher (with a rare extreme blip in the 1000's). Think I should address this with Verizon?

Ralston18 - Regarding your suggestion that I run dism and sfc to check windows file integrity. Some file integrity issues were found and fixed. Current readings are shown below and show which speed test I used (SOM = Speed of Me). Verizon-R is speed from Router to Network, Verizon-D is speed from Device to Network. Still getting low upload speeds reported by SOM site. Also, Verizon speed test failed on one occasion. Impression (just impression) is that internet connections moving more quickly this morning, although just noticed a lag when streaming a news show on the TV using a Roku device and YouTube TV.

Test # Date / Time DownloadUpload Latency
SOM 1 1/31/2021 8:15 117.85 99.15 20
Ookla 1 1/31/2021 8:20 110.91 109.84 16
Verizon-R 1 1/31/2021 8:22 111.00 110.00 18
Verizon-D 1 1/31/2021 8:22 113.00 122.00 18
SOM 1 1/31/2021 8:24 118.34 84.14 19
SOM 2 1/31/2021 8:30 118.27 0.87 23
Ookla 2 1/31/2021 8:32 110.93 120.03 19
Verizon-R 2 1/31/2021 8:35 112.00 113.00 18
Verizon-D 2 1/31/2021 8:35 115.00 125.00 18
SOM 2 1/31/2021 8:38 118.47 - 21
SOM 2 1/31/2021 9:04 118.48 0.87 21
Ookla 2 1/31/2021 9:05 110.77 118.22 15
Verizon-R 2 1/31/2021 9:07 111.00 116.00 N/A
Verizon-D 2 1/31/2021 9:07 137.00 Fail N/A
Verizon-R 2 1/31/2021 9:14 110.00 110.00 15
Verizon-D 2 1/31/2021 9:14 112.00 124.00 15
SOM 2 1/31/2021 9:17 116.62 0.05 19

Thanks to all for your help and advice.

 

[tel51]

Still testing. Don't want to post until testing is complete. Want to try to give a bigger picture.

 

[tel51]

I was stumped initially. Now I'm even more confused. Used most of yesterday trying to come up with some reason or pattern for the random (but frequent) slow speeds on System #2. Here are the summary results:

Note that I used multiple speed tests: Verizon, Oola, Speed of Me, Google.

Verizon consistently showed excellent upload and download speeds with a rare exception. Oola was generally good most of the time. Google and Speed of Me were more reflective of the problem actually being experienced - very low upload speeds at times. Speed of Me showed pretty consistent bad upload speeds. Latency generally ran in the upper teens and low twenties most of the time on all tests.

Using Ubuntu on System #2 - All speed test showed upload and download speeds exceeding 100 Mbs and latency in the upper teens.

I tried various cable and cable combinations. Conclusion was probably not a cable or connection problem.

Ran mobile wifi tests at various locations including location for Systems #1 and #2, a location further away from the router than #1 or #2, and a location right next to the router. Used an iPad Air 2020 (latest iPadOS) and a Pixel 3a (latest Android update directly from Google) for the tests. Both connected to home network. No problems. Good speeds and latency about the same as wired systems.

System #1 still showing consistent good readings.

System #1 and System #2 on exactly the same windows Version (latest update) and both scanned for malware and viruses. Windows update shows no outdated drivers. Used Device Manager to update Network Adapter driver - reported driver was already most current.

System #2 bios was updated to current version. Intel Utility was run to make sure all intel drivers are current versions.

Could the difference be the processor and how Windows APIs are interacting with the processor? System #1 is an HP Omen 25L with an AMD Ryzen 7 3700X. System #2 is custom built with an Intel i7-7700k. However, if this was the case, why did the problem with System #2 only start with the upgrade in speed and router swap-out?

Any more suggestions?