Networking & Wireless forum


Networking problem

So i'm on a two floored building, with the main cable modem, and router being on the first floor, a while back i bought a very long cat 6 cable(100ft) i believe to connect to the top floor to a secondary router i was just using as an extender. It had been working fine for all this time until a few weeks ago.

Now it doesn't give connectivity to the router, i changed multiple routers upstairs with the same issue, and also changed the ports on the router on the first floor. Periodically the light will flash on the upstairs router, but without any internet connectivity. When i take the said router downstairs to test it on other cables it works flawlessly. So obviously there must be an issue with the cable right, but here's the hitch, when i plug in the cable directly to the upstairs desktop it works fine with perfect connectivity.

So i'm really stumped as to why the cable would work fine with a desktop but has issues with other routers setting up a network, does anyone have any idea why?

Discussion is locked
You are posting a reply to: Networking problem
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Networking problem
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
Clarification Request
Is the second router a router (WAN port)?

In reply to: Networking problem

Or a WAP (LAN port)?

It matters. I offer no support when a second router is a router. Google "How to use a router as a WAP"

Collapse -
Second Router is connected through its LAN port

In reply to: Is the second router a router (WAN port)?

I had been using it as a WAP, it had been working for years, and then just stopped recently strangely. Connected through the LAN ports.

Collapse -
In that case, reset it and set it up again.

In reply to: Second Router is connected through its LAN port

If that fails, try another router or WAP. Annoying but they do fail.

Collapse -
Tried that

In reply to: In that case, reset it and set it up again.

I've tried multiple routers on the 2nd floor without any success, so it can't be a device issue. Its just very perlexing why it connects flawlessly directly connected to a desktop, but fails when connected to a router. And as i previously stated, when i take the said routers downstairs and connect it to other shorter cables it works fine. So shouldn't that step alone identify it as a cable problem?

Collapse -
I agree.

In reply to: Tried that

Time to try a new cable. Make sure it's factory made or tell me your pairing scheme.

Collapse -
Signamax BC5E-4 Cat 5E UTP solid cable.

In reply to: I agree.

Yea, the only issue is this size is expensive, and also difficult to get through the roofing again so i would hope to avoid if possible, i still don't understand why it would connect through the desktop or any laptop but fail with any other router device, doesn't seem to make sense.

Collapse -
OK, that's the cable but pairs?

In reply to: Signamax BC5E-4 Cat 5E UTP solid cable.

I've lost count of mispairing in home made cables. Anytime you change the device you might see a diff. After decades of networking, well, you will see this. That's what you carry some ready cables, routers and such.

Post was last edited on February 25, 2016 7:00 AM PST

Popular Forums

Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Enter to win* a free holiday tech gift!

CNET's giving five lucky winners the gift of their choice valued up to $250!