I'm at my wit's end with this.

"If only EssExTee could be so grossly incandescent" (essextee) 10/08/2019 at 19:15 • Filed to: None

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I’ve previously posted about !!!error: Indecipherable SUB-paragraph formatting!!! . In a nutshell:

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My desktop PC and ONLY my desktop PC has crap internet. Before you start responding saying I should reinstall my drivers or run an ethernet cable, please reconsider because I will have to reach through this screen and choke you if you do. I’m computer savvy enough to have ruled those out at the very beginning, and my wifi connection to the router is rock solid (see above image).

I’ve pretty much ruled out any hardware or software issues on my end. I’ve swapped out wifi cards, done a fresh Windows install, and even tried Linux to no avail.

Some Oppos in my last post recommended using the tracert command, and it revealed that some gateway many hops upstream from me is eating my packets. I can’t for the life of me figure out why. That server for some reason does not like this specific PC . Every other device on my network can pass packets through it with no loss.

So, any ideas before I toss this PC off a cliff and build a new one?

CB > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:20

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Have you tried your desktop in a different room in the house? Could just be that where your PC is in the house is a dead zone for it?

Highlander-Datsuns are Forever > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:22

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I love this episode of south park. 

If only EssExTee could be so grossly incandescent > CB 10/08/2019 at 19:23

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Prepare to be s trangled . It’s not my connection to the router, as stated in the above post.

facw > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:26

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At less than half a meg up, it’s going to take a long time to get your arms through there...

Sorry no help here, did you ever talk to Comcast about it?

CB > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:27

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To be fair, I didn't say to run an ethernet cable.

SBA Thanks You For All The Fish > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:33

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Have you tried a simple IP- PING off a known (fast) server? At least you can figure out where the latency is.

I’d also try a CAT5 wired connection from your computer Ethernet port directly into the dedicated port on your modem/router to rule out WiFi interference or RF band issues. I’m guessing your ISP is the problem (I’ve seen bad cable connections hurt speed if you’ve had wet, damp weather too...)

If you DO have interference you could consider going into the 5 GHz band to avoid it... or, check the microwave for leaks if you are heating a Hot Pocket when things get real, real slooooww.

promoted by the color red > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:34

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https://forums.tomshardware.com/threads/slow-internet-speeds-on-only-one-computer-solved.1943039/ - AMD processor?

Also, is your mobo slot working?

How is your internet consumption like?

VajazzleMcDildertits - read carefully, respond politely > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:39

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Question, is your tracert ICMP based, or tcp/udp based? I think windows sometimes defaults to UDP protocol, which is blocked on more gateways. It may not be conclusive unless you do ICMP style which is typically allowed more often.

If you have the ability, can you do a TCP tracert to, say, port 80 or 443 ala a HTTP protocol?

I would presume that you’ve tried other speedtest servers in other locations and they are all just as bad in terms of speed. I would also presume that intranet to intranet node is also reliable and quick and that you’ve ruled that out.

The only thing that I can think of left over is that specific port/protocols from your public ip address are blocked for some reason, every node has a source nat port range but that’s really unlikely. You could refresh your DHCP lease for that windows PC via the router or allocate a specific NAT range on your router to try to fiddle with that.

GL - this one sounds really infuriating.

EDIT: Disable IPV6 routing and see if it improves?

RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:41

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Is this in a uni dorm or anything? Could it somehow be a DNS issue (far-fetched, I know)? Did you try alternate DNS server configs in the router?

I use Google’s free DNS servers rather than our local ISP’s as our local ISP’s are shit.

Google’s are 8.8.8.8 and 8.8.4.4 if you wanted to see if that made any difference.

To clarify, it does this on ethernet AND Wifi?

If only EssExTee could be so grossly incandescent > promoted by the color red 10/08/2019 at 19:42

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PC is Intel-based. Tried switching Mobo slots, no luck. Nothing is hogging bandwith, router is rated for double the demand it sees.

facw > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:44

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I don’t think it would make much difference, but one relatively simple thing you could try is booting from a Linux live CD/USB and seeing if the problem persists. That would at least tell you if the thing that causing issues was hardware or software related .

If only EssExTee could be so grossly incandescent > RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars 10/08/2019 at 19:47

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Tried setting custom DNS servers. Ethernet is out of the question, PC is 1 floor and three rooms away from router and I have neither the knowledge nor permission to start hacking holes in walls.

nermal > If only EssExTee could be so grossly incandescent 10/08/2019 at 19:54

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That’s probably the FBI intercepting your traffic because you’re on a list for.... something.

Your best course of action is probably to go off-grid for a bit and hide out in a cabin in the woods for a while. Also, stop doing whatever it is you did to get the FBI to monitor your PC in the first place .

Wacko > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:05

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Did you try different wireless channels?  There might be some interference with something close to the pc. Is your router a dual band? 

If only EssExTee could be so grossly incandescent > facw 10/08/2019 at 20:11

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I suspect you didn’t read my post fully.

VajazzleMcDildertits - read carefully, respond politely > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:18

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So, if you’re willing, with a shipping address, I’d totally ship you a 100 foot cat6. something like this https://www.amazon.com/Ethernet-Internet-Network-Computer-Connectors/dp/B00WD017BG

DarkCreamyBeer > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:18

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I don’t usually work for free, but what the hell: One thing I’d check is your MTU ( http://homenetworkadmin.com/what-is-mtu-size/ .) My guess is this PC’s MTU is bigger than that on the router and/or gateway, and consequently your packets are getting fragmented which can dramatically affect performance . A typical home network would use an MTU of around 1500, but you should find that setting and  try adjusting down. Also make sure that if you see a setting for jumbo frames, it is turned off.

RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:26

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Stupid question, but is this a modem/router combo box, or JUST a router? If the latter, d id you try temporarily swapping a completely different router in temporarily to see if the issue persists (if you have one) ? Or did you try resetting the existing router to factory d efaults?

Sorry if I am asking ‘reach through the screen and choke me’ questions, but I don’t know what all you’ve done already and I know even the best of us tech ies forget things sometimes.

If only EssExTee could be so grossly incandescent > RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars 10/08/2019 at 20:32

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It’s a modem/router combo.

RallyDarkstrike - Fan of 2-cyl FIATs, Eastern Bloc & Kei cars > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:36

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Not sure buddy....I know it’s a pain in the ass dealing with ISPs, but I am thinking you don’t really have a choice at this point...could try and get a replacement modem/ router and see if that makes any difference, or at least try and get through to somebody at Comcast who actually understands what you are talking about?

facw > If only EssExTee could be so grossly incandescent 10/08/2019 at 20:47

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Shit...

VajazzleMcDildertits - read carefully, respond politely > DarkCreamyBeer 10/08/2019 at 21:28

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Are consumer routers now setting Jumbo frames with higher than usual MTUs out of the box? Every default I’ve seen has always left that at the standard 15XX. 

DarkCreamyBeer > VajazzleMcDildertits - read carefully, respond politely 10/08/2019 at 21:36

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I don’t expect so, but anything is possible. Much more likely is jumbo frames being set on the adapter, or the MTU on the adapter being bigger than the upstream MTU but still not jumbo.

VajazzleMcDildertits - read carefully, respond politely > DarkCreamyBeer 10/08/2019 at 21:37

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There’s a possibility I hadn’t considered. Most of the time I found traceroutes useless unless you were troubleshooting specific protocols. Too many node hops block ICMP/UDP traffic of that sort if you just wander 30 hops out to your destination on defaults.