Wi-Fi Router Issue Fix Coming For LG's UltraFine 27-inch 5K Display - MacRumors
Skip to Content

Wi-Fi Router Issue Fix Coming For LG's UltraFine 27-inch 5K Display

A recurring issue with the LG UltraFine 27-inch 5K display that causes glitches whenever the monitor is placed close to a router will be fixed, LG has announced.

Recently, reports began circulating online that LG's 5K monitor – created in partnership with Apple – suffers from flickering and freezing when placed close to a wireless router, with this behavior sometimes causing connected Macs to also freeze and require a restart.

lg ultrafine 5k
On Wednesday, an LG support person confirmed to ArsTechnica that the issue had been reported by a number of users and that it only seemed to occur with the company's Apple-approved 5K monitors. LG has now publicly apologized for the glitch and says all new models made after February will not be susceptible to the problem.

Speaking today to Recode, an LG spokesperson said that the company will resolve the problem by inserting additional shielding into newly manufactured models, which should protect against the electromagnetic radiation from routers that is likely causing the issues.

"LG apologizes for this inconvenience and is committed to delivering the best quality products possible so all LG UltraFine 27-inch 5K displays manufactured after February 2017 will be fitted with enhanced shielding," the company said in an e-mail.

According to LG, existing models will be able to be retrofitted with the same enhanced shielding, allowing the monitors to be placed near routers without playing up. Owners affected by the issue are advised to get in touch with LG support using the number (800) 243-0000, or to visit their local LG seller to arrange for a repair.

Apple teamed up with LG to create both the 4K and 5K UltraFine Displays, specifically designed to work with the new 13-inch and 15-inch MacBook Pro. The displays are a successor to Apple's own Thunderbolt Display, which it discontinued earlier this year amid its departure from the standalone display business.

The 5K Display is currently available for purchase at the sale price of $974 until March 31, 2017, when the price will return to $1,299.95. Apple was recently falsely accused of hiding negative feedback about the new display on its web store, when the truth was that reviews had not yet been activated for the product page.

Whatever the reason for the initial delay, posting to the product page has been possible since January 25 and reviews have so far been mixed. LG's display currently has a 3 out of 5 star rating based on 115 reviews, but it's not entirely clear how many of them are solely affected by the router glitch.

Related Roundup: Studio Display
Tag: LG
Buyer's Guide: Displays (Buy Now)
Related Forum: Mac Accessories

Popular Stories

iOS 26

iOS 26.4 Adds Two New Features to CarPlay

Tuesday March 24, 2026 1:55 pm PDT by
iOS 26.4 was released today, and it includes a couple of new features for CarPlay: an Ambient Music widget and support for voice-based chatbot apps. To update your iPhone 11 or newer to iOS 26.4, open the Settings app and tap on General → Software Update. CarPlay will automatically offer the new features so long as the iPhone connected to your vehicle is running iOS 26.4 or later....
Apple Business hero

Apple Unveils 'Apple Business' All-in-One Platform

Tuesday March 24, 2026 8:53 am PDT by
Apple today announced Apple Business, a new all-in-one platform that unifies device management, productivity tools, and customer outreach features. The service is designed to be a consolidated replacement for several of Apple's existing business-focused offerings, including Apple Business Essentials, Apple Business Manager, and Apple Business Connect. It provides organizations with a single...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 3, AirPods Pro 2 and AirPods 4

Tuesday March 24, 2026 12:31 pm PDT by
Apple today released new firmware for the AirPods Pro 2, AirPods Pro 3, and the AirPods 4. The firmware has a version number of 8B39, up from 8B34 on the AirPods Pro 3, 8B28 on the AirPods Pro 2, and 8B21 on the AirPods 4. There is no word on what's included in the firmware, but Apple has a support document with limited notes. Most updates are limited to bug fixes and performance...

Top Rated Comments

JosephAW Avatar
119 months ago
A display with no sheilding? I suppose they were trying provide a low cost monitor to the consumer by cutting back on expensive materials like tin.
Score: 28 Votes (Like | Disagree)
PatriotInvasion Avatar
119 months ago
Ahhh...$1,000 for a display that took 5-6 weeks to ship and they expect people to ship it somewhere for repair. Yea right. This should result in an extended return window at any Apple Store. Essentially a recall. And, hopefully this triggers Apple to make their own display and stop suscepting Mac users to the black plastic world of PC users.
Score: 25 Votes (Like | Disagree)
Steve121178 Avatar
119 months ago
Nothing like testing a product before release is there!
Score: 23 Votes (Like | Disagree)
meaning-matters Avatar
119 months ago
Current owners are advised to wrap the backside in aluminum/aluminium foil.
Score: 18 Votes (Like | Disagree)
119 months ago
Low quality strikes back...
Score: 16 Votes (Like | Disagree)
PBG4 Dude Avatar
119 months ago
how do you get in touch with LG and get them fixed??? I have two and UK based...
Can you not bring them to an Apple Store? This is probably why people want an Apple branded monitor. They know where to bring it for service.
Score: 15 Votes (Like | Disagree)