Flickering of monitors near routers, Substituting Apple’s Thunderbolt display to LG UltraFine 5K display is problem

by Kumkum Sharma 2,166 views0

Last year in the month of October Apple made a big decision of ditching its Thunderbolt Display series and replaced it with LG’S UltraFine 5K Display. The decision was made to support and make the new MacBook Pro laptops compatible and connectible to larger display. But, lately there have been lot of complains and issues related to flickering and black out of the LG laptop display when monitor is kept in close proximity to the router. Also, some claim that on keeping the computer screen close to Wi-Fi the screen freeze.

Issues reported by users

Tech giant Apple replaced it Thunderbolt display for a reason but little did they know there will be complains coming from all over. It was first reported by 9to5Mac and confirmed the information with customer and technical support of LG. As informed by the spokesperson it was suggested that one should place the monitor and router far from each other. It was suggested that in order to enable proper functioning without flickering and black outs, it is important to place both at least 2 metres away. It was noticed that the issue was resolved when the display was placed at certain distance from the Wi-Fi.

Resolution to the problem

It is usually noticed that when the Wi-Fi router is placed within 2 metres of radius, the display starts to flicker. On shifting the router more close to the display, the screen tends to black out completely. However, the resolution provided is to keep a distance of more than 2 metres to stop the issue. In the LG manual it is mentioned that the Ultrafine 5K display should be installed at a place without electromagnetic interference. As suggested by someone on Apple site, the flickering and disturbance depends on amount of traffic going through the WAP and issue being only seen on LG’s UltraFine 5K monitors.


The flickering issue is a very operation flaw that is yet to be resolved by both LG and Apple. The issue of WAP proximity is actually ignored by both the company. LG’s UltraFine Display however is a great product with a display screen of 27-inch along with screen resolution of 2880 x 5120 pixels. The substitution is good with larger display and helps in editing and other world. The screen is connected to the laptop using the Thunderbolt 3 port and also helps in charging.

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