Wi-Fi 6 even to the furthest corner of your home: Popular TP-Link extender discounted by several hundred

Almost every house or larger apartment has at least one spot where Wi-Fi doesn’t work as it should. A bedroom at the end of the hall, a kitchen behind a load-bearing wall, the garden, the basement, the attic. The TP-Link RE705X is now available on Alza with code ALZADNY20 for 1,279 CZK instead of 1,599 CZK, and it’s one of the best-selling WiFi 6 extenders in the Czech Republic that solves this problem.

Quick summary:
✅ Makes sense for anyone who has spots at home where the router’s signal doesn’t reach properly – a bedroom at the end of the apartment, the attic, the basement, or the garden.
⚠️ Consider carefully if you have a small apartment where the router’s Wi-Fi covers everything without issues, or if you are already planning a complete mesh system.
💡 For 1,279 CZK you get a Wi-Fi 6 extender that genuinely solves one of the most common home network problems – and every household member will appreciate the investment.

Why should you consider a Wi-Fi extender?

Most people have their provider’s router placed somewhere near the front door or in a corner of the living room – precisely where you might not need the signal most. The result: video calls stutter in your bedroom, you can’t stream music in the garden, and you can’t maintain a stable connection with a smart camera in the attic. The classic solution – moving the router – usually isn’t possible because that’s where the internet cable runs. And a complete mesh system will cost you at least 4,000 CZK.

This is where an extender comes in. One user precisely described their improvement: “from 80 MB/s on old Wi-Fi, the speed test showed me 270 MB/s”. Another writes that previously “the signal barely reached the next room, now it even reaches the garden”. This is not an exception – it’s a typical scenario for which the RE705X is built. Specifically, this model also uses Wi-Fi 6 and four high-performance amplifiers, so it’s not a cheap “repeater” from the 90s.

Key parameters: Wi-Fi 6, AX3000, and 160 MHz band

The RE705X falls into the AX3000 class, which means a theoretical combined speed of 3,000 Mbps divided into 5 GHz (2,402 Mbps) and 2.4 GHz (574 Mbps) bands. You’ll use the 5 GHz band for fast devices in the immediate vicinity of the extender, and 2.4 GHz for better range through walls. Actual speeds will, of course, be lower, but even so, in practice, we’re talking about 500 Mbps and more over Wi-Fi in a place where there was previously only a poor signal.

Wi-Fi 6 (802.11ax) brings three important things compared to the older generation. Firstly, thanks to 1024-QAM technology, data throughput increases by approximately 25%. Secondly, OFDMA can serve multiple devices simultaneously – in practice, this means that if you have five phones, two laptops, a TV, and smart plugs in your family, they don’t fight for bandwidth. And thirdly, support for 160MHz channels on the 5GHz band provides double the throughput compared to standard 80 MHz, provided your devices also support it.

In terms of security, the extender is ready for the present – it supports WPA3 as well as older WPA2 and WPA. Beamforming then specifically directs the signal towards devices instead of broadcasting broadly, so a phone in hand receives a stronger transmission than the surrounding air.

Practical aspects: installation, OneMesh/EasyMesh, AP mode

Installation for this model is truly a matter of minutes. Just plug the extender into an outlet, press the WPS button on your router and on the extender – and you’re done. For more control, use the TP-Link Tether app for Android and iOS, where you can set signal strength, turn off LED indicators for the night, or define a time window for the extender to turn off Wi-Fi (for example, overnight for children’s sleep). The phrase “easy setup” repeatedly appears in reviews – it’s the most common praise in 62 user reviews.

If you have a TP-Link router (typically Archer AX23, AX55, and similar), you can connect them into a mesh network using OneMesh technology. The extender then doesn’t create a second Wi-Fi network with its own name but functions as part of yours – your phone automatically switches between the router and the extender based on where the signal is stronger. Smart Roaming then ensures that your call or streaming doesn’t drop even when moving around the house. Newer firmware also supports the universal EasyMesh standard, so today the RE705X also works with routers from other manufacturers who implement EasyMesh.

An important additional feature, often overlooked at this price point – the RE705X can also function as a pure access point (AP mode). Just connect an Ethernet cable from your router to it, and you’ll get a fast dual-band MU-MIMO 2×2 access point. One user clearly describes it: “in AP mode with gigabit internet, I get over 500 Mbps download and upload via Wi-Fi 6”. This is a result that a typical extender without a wired connection cannot achieve.

What users say

The RE705X has a rating of 4.7 out of 5 from 145 reviews on Alza, with over 5,000 units sold, 93% of customers recommend it, and the return rate is a very low 0.64%. These are figures that are not common for extenders in this price range – competing models often hover around 4.3 out of 5 and have higher return rates.

Four things dominate the praise – easy installation via the app, significant range improvement, signal stability, and OneMesh integration with TP-Link routers. One owner describes having the extender in the attic and getting a signal even 50 meters from the house. Another appreciates that after plugging it in, it solved the problem of a dropping smart camera. For users with slow connections from their provider, it’s important to note that they measured well over 600 Mbps download/upload on a gigabit connection via the Ethernet port in AP mode.

Three points are repeated in the criticism. The first is size – the extender is indeed bulky and in some double sockets, it occupies both positions. The second point is that it runs hotter than a typical router, but no review indicated this caused a malfunction; it’s just something to be aware of. The third remark concerns the initial setup in the Tether app – it requires email registration and entering the router’s access key, which delayed a few users. Occasionally, reviews mentioned outages solvable by a restart, but this is not a systemic issue.

If this particular model didn’t appeal to you, but you’re looking to expand your Wi-Fi, you can also check out the current Alza Days, where other discounted Wi-Fi routers, mesh systems, and extenders continuously appear. Stock for best-selling models usually depletes quickly.

When it doesn’t make sense

If you live in a small apartment where the router covers everything with its signal without issues, the RE705X won’t bring you any measurable benefit – in such a case, it’s wiser to save money. Similarly, if you are currently planning a complete mesh system (for example, TP-Link Deco BE25 or Deco X50), it’s better to go straight for that – mesh provides simpler management and usually more stable roaming than a router + extender setup.

The second case is homes where the internet from the provider is really slow – say, up to 30 Mbps. In such cases, the difference between Wi-Fi 5 and Wi-Fi 6 will practically not be noticeable, and a cheaper model like the RE315 or TL-WA854RE for half the price would suffice. Wi-Fi 6 and 160MHz bandwidth make sense where you have a gigabit connection or plan to acquire devices that support it – latest generation phones, gaming consoles, newer laptops.

Verdict: who it’s worth it for

The TP-Link RE705X for 1,279 CZK makes sense for practically anyone who has at least one spot at home with a weak Wi-Fi signal and doesn’t want to deal with a complete network replacement. The investment pays off quickly and measurably – with a stable signal in the garden, smooth calls in the bedroom, and resolved streaming in the attic. Wi-Fi 6, OneMesh/EasyMesh compatibility, AP mode with gigabit Ethernet, and a 36-month warranty make it a safe choice at this price point, confirmed by over 5,000 units sold and 93% satisfied customers. Conversely, if you are setting up an entirely new network for a large house, it makes sense to go straight for a mesh system.

Do you have a spot at home where your WiFi doesn’t reach properly, or have you already solved your home network coverage?