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Speed issue wired in only after upgrading to 1GB plan WNY state
Hi,
The Spectrum tech just left my residence after 3 hours on site (perplexed despite some nice troubleshooting efforts). Installed a new modem and router that was given to me at the Spectrum store on Saturday 7/13/2024. The tech even swapped out the modem for a new one today.
- The line to the house is good with excellent signals - levels.
- Wireless connections get 1GB download.
- Wired connection via ethernet all give around 500 MB (tops sometimes worse) for the download speed. This includes bypassing home and work computers testing directly off the technicians device that he carried around.
Three personal devices and a work laptop was tested wired. All give that same download speed. Curious if a L2 or 3 could take a look to ensure all is set up properly on the Spectrum side? Multiple calls to the office from the tech deemed the same info. All is set up for 1GB and reading back to them look proper but why the "slower" speed on all wired connections? Please keep in mind that the ethernet speeds were confirmed by the tech who plug his device that's carried around directly into the modem and or modem & router.
Dave
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Hi @Mookytc -
I was able to locate your account using your registration information and can confirm that 1GB + is being delivered to the modem and all signals look fine.
What type of ethernet cord are you using? Do you have a different ethernet cable to test?
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CAT5e or 6 but keep in mind the technician had new ethernet cables with him (using them).
My personal computers including my work laptop we're bypassed because he's getting the same readings off that device he carries out of his van into the house.
That rules my personal computers out of the picture for now. His bulky device he carries around wired in either directly to the modem and or the modem and router gave the same 500 MB down reading. That is where it started to get perplexing. If his device would have measured 1 gig down wired in then it was something on my personal computers but his device getting the same 500 MB down. It is like a Gbps link throttled to a half of that Mbps.
I do appreciate you looking into this.
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Attached is a few recent speed tests this evening.
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I appreciate the speed test. I am very sorry this was not corrected for you. We may have to consider having him come back out for further investigation. Are those readings pretty much what you are seeing on all devices? -Lyn
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Hi and only wired. Personal pc's and a work laptop. With that statement one would think it is your personal devices. In addition the modem has great reading from the office so does the line to the house.
The caveat is the tech plugging his device that is wrapped with a protective cover directly into the modem and or router (that is attached to the modem). The same speeds were produced. This rules out the personal devices they behaved the same as his pack.
The modem I received Saturday was also replaced Sunday to no avail. Despite the office and or support that the tech called stated all looks great it feel like a configuration issue outside of the house (perhaps on them modem but there does not look like a much can be tweaked). Feels like a a Gbps link throttled to a half of that Mbps. Some speed tests scream right around the 500 Mbps mark and throttle right down. The tech was definitely capable and experienced.
I am glad I have connectivity as I work from home so that is a good thing. Thanks for the support.
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NAT acceleration may be disabled and restricting packet flow. The CPU load of the router will likely ramp up big time if something like cut through forwarding is not in play.
QoS config could also be a culprit, especially if they are also sectioning off a portion of bandwidth for Voice Over IP (Spectrum home phone)
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Ran an speed test to via Spectrum.net. Speed to the router is great. My upload and to my personal device is lacking. The tech at the house had the same behavior on his device testing the hardware.
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Sounds more and more like a router issue (what I was talking about in the previous post) .
Are you using a combo modem/router, or seperate modem and router?
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If it is a combo unit,may be worth changing bridge mode so it runs strictly as a modem.
This will allow you to test it directly connected to a passthrough modem.
likewise, if running seperate modem and router, would want to test direct connecting to the modem (no router in play).
The intent is trying to figure out more precisely at which layer things are going sideways. Is it the uplinking port, something in routing configuration... something off in the SOC itself (Intel and Archer chipsets have been known to be a bit wierd... Broadcom seems to be better bets these days).
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It is not a combo. Had one in the house but I use Spectrum's equipment so based on the upgrade now have a modem and router. Will experiment but the tech's device plugged directly into the modem (no router) had the same performance.
Worth another try.
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I was unable to get online directly into the modem. Released / renewed the ip address, reset the TCP IP stack, etc. Light activity on the modem was green and orange). Set the router back into the mix the modem has two orange lights. PC shows 1GB, speed and duplex set to auto negotiation.
I may bump my tier down to the middle plan (or even back to basic). No sense paying for something that appears problematic to achieve. At least I am not having connectivity "issues" wired into router. The confusing thing is why did the tech get the same speeds when plugging his device into the router or directly into the modem? His cell phone was put on the home wifi network and hit 1GB down.
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Curious indeed.
Have you ever used testmy.net? Their test gives you a graph of the downstream performance throughout the test. Might be interesting to see if it shows periods of massive throttling while also achieving the proper bandwidth periodically--someting sort of like a buffer bloat kind of issue.
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Appreciate the support. Work in a few hours have to take a nap 😴
There is an automatic re-run feature. Going to run some auto start tests overnight. Not sure much will change.
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Unfrozen caveman here, so take this with a grain of salt but if the router is pulling down ~1Gb/s from the modem via 2.5Gb/s Ethernet and the WLAN adapter is pulling down about the same from the router as the router is from the modem, and any 1Gb/s LAN adapter at play is pulling down only half of that even when connected directly to the modem, then i'm beginning to wonder whether you're going to be able to get to the bottom of it without a 2.5Gb/s LAN adapter and, furthermore, whether ~1Gb/s, net collectively, per se, is anything to sneeze at regardless of what any 1Gb/s LAN adapter ever tops out at.
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I agree however the confusing thing is why did the tech only get half with his device (wired directly into the modem) ruling out my personal devices? If the tech hit 1Gb with the pack that he carries around then it's clear it's the personal devices and their adapters.
The tech was perplexed and made multiple calls as he kept saying this appears to be a configuration issue. All support in the office stated things look good - correct config.
Notice the bad upload speeds in a couple over night tests run.
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Can't seem to shake the thought of something locally impeding packet flow to/through the ethernet layer... be that hardware limitation or configuration/firmware snafu.
Looking a LOT like the problems we ran into a while back with the Archer C7 chipsets. Once got my hands on a TPLink router from Office Depot that absolutely refused to behave across ethernet.
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I've asked around just some folks I know inquiring if anybody had a spare router.
Have come up empty so far. Would like to see if anything changes.
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Could also be an issue with the modem's chipset. All the headaches the Intel Puma based ones gave us a while back...
<shudders>
I pretty much only buy ones with Broadcom's in them anymore. Netgear's have started scaling back their DRAM, and I just don't trust that move... especially when they may be roughly the same price. So that is another thing to consider as well in both modems and routers with the way everything floods buffers these days.
As for routers, always got good service out of Asus with the Merlin firmwares installed, especially for their price range. Granted... I haven't had to buy one in a long time (current is the AC86 model). So can't speak on their newer AX models and such.
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I've always have had faith in Netgear networking products. That said I'm not sure I want to throw any money at this troubleshoot but we shall see.
Upgrades can tend to produce more upgrades with additional spending but trying to avoid that.
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Sounds like the gear, including the tech's tote-set, isn't liking 1GbE for the Gb tier at all. I'd reboot the modem and reset the router one more time, just for kicks.
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Yes I did last night. Nothing is changing unfortunately. Appreciate you tuning in. Dismal uploads as well. At least I can work as connectivity knock on wood has been solid- steady.
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Just noticed the region where your tests are taking place. That Toronto area has been hit and miss in the past. Buffalo, not so much... but it can crop up.
Getting REALLY bad loaded latency just now hitting those areas from down here... talking 1000-3000 spikes. Was like night and day between Bell Canada Toronto vs Bell Canada Montreal in speedtest.net app. Rochester Institute was much better than hitting spots listed for Buffalo as well.
May be interesting to see a similar comparison from your end... just to rule it out. The testmy.net site also has a location in NY you could switch to instead of TX as well. It can sometimes waffle between Dallas and NY as to which will give better resuls from here in SC.
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NY pic posted. I either live with it, drop down in tier, or switch carrier not much else to do. I'll make a decision at some point. Glad I can be connected without issue.
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