Technical Discussion
  >> Home Networking, Internet Connection Sharing, etc.


Register (or login) on our website and you will not see this ad.


Pages in this thread: 1 | 2 | (show all)   Print Thread
Standard User joconnell
(experienced) Thu 11-Oct-18 08:02:57
Print Post

Wired ethernet connection from PVR and TV


[link to this post]
 
I've connected both my Humax PVR and Samsung TV to my network using the RJ45 port that each has, but the TV reports that there's no cable connected and the PVR just refuses to use the wired connection and just falls back to using it WiFi connection.

On both units, the RJ45 port is adjacent to the HDMI ports so I'm wondering if the cat5e cables I've used are getting affected by RF interference from the HDMI connections?
Administrator MrSaffron
(staff) Thu 11-Oct-18 09:42:26
Print Post

Re: Wired ethernet connection from PVR and TV


[re: joconnell] [link to this post]
 
Interference scenario is unlikely, have you proved the cables work by connecting another device that has a known working Ethernet port?

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User joconnell
(experienced) Thu 11-Oct-18 10:08:05
Print Post

Re: Wired ethernet connection from PVR and TV


[re: MrSaffron] [link to this post]
 
Yes, both cables were previously used to connect my router to a BT OR modem and to connect my router to a switch that drives the rest of the Ethernet network.

The reason I suspected interference is that the TV aerial cable previously used with the TV kept dropping the Freeview signal, replacing it with a known good cable made no difference - the fix was to make my own aerial cable with shielded solid core coax, which suggested that the issue was being caused by interference by the adjacent HDMI ports/connectors, so wondering if shielded CAT 5e might be needed for the Ethernet connections?


Register (or login) on our website and you will not see this ad.

Standard User billford
(elder) Thu 11-Oct-18 10:29:35
Print Post

Re: Wired ethernet connection from PVR and TV


[re: joconnell] [link to this post]
 
It's generally better (where possible) to stop interference getting out rather than getting in... have you tried a better quality (or even just another) HDMI cable?

Bill
A level playing field is level in both directions.

_______________________________________Planes and Boats and ... ______________BQMs: IPv4 IPv6
Administrator MrSaffron
(staff) Thu 11-Oct-18 10:30:45
Print Post

Re: Wired ethernet connection from PVR and TV


[re: joconnell] [link to this post]
 
If you think its interference then moving an Ethernet device e.g. laptop to the location of the of the devices and testing there may help identify that.

What was the aerial cable made of before? All coax I've used has a solid core and metal braided outer.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User adrenalize_
(newbie) Thu 11-Oct-18 10:54:00
Print Post

Re: Wired ethernet connection from PVR and TV


[re: joconnell] [link to this post]
 
IMHO There would have to be an extremely large amount of interference to stop the network connection negotiating even if dropped down to 10Mbps - I'd work back up the networking route with a laptop or similar to see where the networking gets to.
Administrator MrSaffron
(staff) Thu 11-Oct-18 12:19:28
Print Post

Re: Wired ethernet connection from PVR and TV


[re: adrenalize_] [link to this post]
 
One possibility is that the Ethernet cables are crossover ones, which many devices won't care about but some devices do.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User jabuzzard
(regular) Thu 11-Oct-18 12:56:23
Print Post

Re: Wired ethernet connection from PVR and TV


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
If you think its interference then moving an Ethernet device e.g. laptop to the location of the of the devices and testing there may help identify that.

What was the aerial cable made of before? All coax I've used has a solid core and metal braided outer.


Normally the leads that go between a faceplate in the wall and your TV for both satellite and terrestrial are stranded core coax. Much the same way as the mains lead for an appliance is stranded but the fixed wiring in the walls is solid core.
Standard User joconnell
(experienced) Thu 11-Oct-18 13:16:55
Print Post

Re: Wired ethernet connection from PVR and TV


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
If you think its interference then moving an Ethernet device e.g. laptop to the location of the of the devices and testing there may help identify that.

What was the aerial cable made of before? All coax I've used has a solid core and metal braided outer.
It was a flexible cable which I'd bet was braided core rather than solid core
Standard User joconnell
(experienced) Thu 11-Oct-18 13:19:08
Print Post

Re: Wired ethernet connection from PVR and TV


[re: billford] [link to this post]
 
In reply to a post by billford:
It's generally better (where possible) to stop interference getting out rather than getting in... have you tried a better quality (or even just another) HDMI cable?
The HDMI cable is a good quality one that I bought to replace the one that came with the TV.

I've since learned that the RF interference from an HDMI cable would be in the UHF frequency and so shouldn't affect a cat5e ethernet connection.
Pages in this thread: 1 | 2 | (show all)   Print Thread

Jump to