The latest monitor from LG priced at US$1,300 apparently has an engineering flaw. LG's 5K monitor actually crashes when positioned too close to Wi-Fi routers as reported by users.

UltraFine 5K monitors and Wi-Fi routers. The issue was discovered by users of the monitor who have logged on to Apple's reviews page to express their dismay. Apple started selling the monitor, which succeeds Apple's Thunderbolt Display, just this week.

The monitor seems to have a major issue with Wi-Fi routers. When placed within two meters or 6.5 feet of a Wi-Fi router, the monitor's display starts to flicker. If placed really close, the display goes black and rendered not usable.

An LG Electronics support representative confirmed that the issue only happens with the LG's 5K monitors. The problem doesn't seem to appear in other LG monitors.

Zac Hall of the website 9to5Mac reported that his LG 5K monitor caused the MacBook Pro it was plugged into to freeze which eventually required a reboot. The problem seemed to go away after moving the Wi-Fi router, which was placed beside the monitor, to another room.

One customer particularly mentioned that the monitor would constantly flicker while jogging through different Wi-Fi channels on his Wi-Fi router. The issue seemed to go away after separating the 2.4GHz and 5.0GHz networks and setting them to automatic.

Another issue that affects 5K monitor is random flickering even without Wi-Fi signals nearby. In addition, USB devices are not being detected when plugged into it.

It is assumed that some key part of the monitor is not receiving the appropriate shielding from radiation and other signals. It could also be a problem with the USB-C cable or the clock generator on the LCD control panel or the USB controller.

The Korean tech company has already been sought for comment on the matter. LG has yet to provide an official statement concerning the flaw in their UltraFine 5K monitors.

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