Weird internet upload speed issue, ethernet only

Visitors can check out the Forum FAQ by clicking this link. You have to register before you can post: click the REGISTER link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. View our Forum Privacy Policy.
Want to receive the latest contracting news and advice straight to your inbox? Sign up to the ContractorUK newsletter here. Every sign up will also be entered into a draw to WIN £100 Amazon vouchers!

You are not logged in or you do not have permission to access this page. This could be due to one of several reasons:

You are not logged in. If you are already registered, fill in the form below to log in, or follow the "Sign Up" link to register a new account.
You may not have sufficient privileges to access this page. Are you trying to edit someone else's post, access administrative features or some other privileged system?
If you are trying to post, the administrator may have disabled your account, or it may be awaiting activation.

Platypus replied

17 December 2018, 09:53
Originally posted by d000hg View Post

Obviously a next step is to cable directly PC to router but I have tried more than one port on the hub already.

I think you have to do this as it's either faulty wiring (on more than one socket) or a faulty / poorly configured port on the PC. Have you done all the usual nonsense about un-installing/re-installing drivers for the ethernet port? Try the MS driver, the previous driver, etc? Have you another device you can direct-connect the PC to, such as a NAS, and measure the speed? Surely one of your mates / kids has another device you could try?

Good luck. Issues like this are so annoying and time consuming
Leave a comment:
d000hg replied

14 December 2018, 22:23
Originally posted by WTFH View Post

Stupid questions:
1. Have you tried a different ethernet cable?
2. How long is the cable run to your router?
3. Have you tried a different computer on a cable?

1. Yes into a different socket*
2. 10m*
3. I'm not sure I have another computer with an Ethernet port, unless I get one of of storage, as laptops have started ditching them

* We wired one bit of the house with cat6e. There's an 8-port powered hub. However I get the feeling this issue might predate that... Obviously a next step is to cable directly PC to router but I have tried more than one port on the hub already.

Sent from my ONEPLUS A3003 using Tapatalk
Leave a comment:
WTFH replied

14 December 2018, 17:36
Stupid questions:
1. Have you tried a different ethernet cable?
2. How long is the cable run to your router?
3. Have you tried a different computer on a cable?
Leave a comment:
d000hg started a topic Weird internet upload speed issue, ethernet only

14 December 2018, 17:21
Weird internet upload speed issue, ethernet only

I have a weird issue where I get virtually zero upload speed but only when connecting via ethernet, WiFi works fine.

e.g. Computer on WiFi gets 20/5 Mbps up/down
Same computer on Ethernet gets 30/0.5

My connection has a maximum of about 30/8 according to the modem which is what I expect. The same problem persists on 2 different modem/routers and I think two different ISPs... I never explicitly noticed it but the symptoms were there in hindsight.
One interesting(?) point is that running speed-test on ethernet, the upload test sets at 0.0 for the first 2-3s then bounces up to .5. On WiFi, there is no such 'lag'.

As well as any advice how to fix it, I'm really curious just what could be the root cause... a fix will probably involve finding where the issue is but not how it causes the specific problem that download is fine but upload is slow. Because as I understand it ethernet cable doesn't have 2 unidirectional links?
Tags: None