HankO

[HankO]

I bought a OLED55CXPUA and the ethernet was only getting 5Mbps using Fast test , and 18Mbps using Ookla test . I get 495 Mbps when connecting ethernet to PC ,so Spectrum said its not their router. I called LG support 3 times and couldn't solve issue , so I returned TV and bought a OLED55CXAUA at Costco. I get exactly the same ethernet speeds. I'm not very experienced with network issues , so I would appreciated any input. I did get an email from LGCareCenter saying "Regarding this one, we have received an update from our specialists. The maximum speed of an LG TV when wirelessly connected to a home network is 1.3 Gbps or 1300 Megabits per second. If 1.3Gbps is supplied via Cat 5 (hardline) speed test may not show that as actual speed available, but please do take note that the unit will only take what it needs to stream or surf the net. If you stream a movie and it buffers, please try to run a speed test using the URL of 

link hidden, please login to view

. If speed shows say 5 Mbps, please check the router settings for Priority settings." Does this  sound accurate , I do get about 50Mbps over WIFI so why wouldn't  WIFI show the same speed results unless its only ethernet that only takes the speed needed for steaming. I contacted LG support again and they said a tech would have to come to diagnose and if its not a TV defect I would have to pay for service . The TV is only 10 days old.

[td47]

@HankO Even if you router LAN connections, and any LAN Switches (to split single LAN cable to several hard wired boxes), are 1GB speed (i.e. 1000MBPS), the TV Ethernet chip-set will ONLY support up to 100Gbps, and even then you "lose" some bandwidth due to protocol loss (i.e. TCP/IP - Ethernet data packet dissassembly and re-assembling into a usable digital data stream).

I do not know of any LG TV's that support 1GB speed yet, not sure of any other makes/models.

Can you please confirm if you have the TV connected via WiFi or Ethernet LAN cable? 

If you are close enough to your router or AP (Access Point for WiFi), then good routers can supply that 1300Mbps you are after. It DOES depend on the channel your router is using, and the level of any interference from neighbours routers or AP's. If you have a modern laptop, that has 5GHz WiFi card in it (do NOT confuse that with phone 5G, that means Fifth Generation, NOT the 5GHz band!) a good place to start is to check the WiFi strength (signal quality)  near the TV.

I use this free software from Nirsoft. It wil show you your OWN WiFi network, the channel SSID for both the 2.4GHz and the faster 5GHz SSID (if they are not merged under one SSID, that makes it difficult).It also shows the signal quality, and OTHER nearby routers, and channels that THEY are using. For WiFi on the 2.4 I found channel 8 is often good, and channel 36 for the 5GHz, but channel 44 is also often good. 

Here is the link:

link hidden, please login to view

NOTE: this will give you a ZIP file to download, so place it into its own folder, double click on it, and let it extract to the same folder. You can then just double click on the .EXE file in there, if you have "show file types" ticked on your file explorer view tab.

By the way, if you are not sure about logging into your router (and it is one of these in the Spectrum page below),  click on the down arrow by your router make/model, log in and check yout WiFi details for the channels (often in WiFi advanced settings), and change the channel numbers to avoid interference from others in the area, if needed:

Edited January 26, 2021 by td47
typos

[HankO]

I'm using Ethernet , WIFI not reliable . I don't expect 495Mbps to TV but I only get 5Mbps with Fast speedtest and 18 with Ookla . Netflix says you need 25 Mbps for 4K streaming. I did see in post someone used a usb to ethernet adapter . I got one from Amazon and connected through it. Going through USB my speed increased to 15-25 Mbps with FAST and 50 Mbps with Ookla. When I check network settings it say both wired not connected , but it works with Netflix and other Apps . I could live with that , but I dont think I should have to use a $15 adapter to work around an ethernet connection on a brand new high end TV.  And I'm not sure if any other internet apps would be affected. Thanks for your reply , I appreciate any help.

[td47]

@HankO If your WiFi is unreliable, you might need to resite the router, or look at the channel numbers, like in my post.