Why is my satellite Deco unit not getting the same speed as the main Deco?

Deco W3600 , Deco X20 , Deco BE65-5G , Deco M1300 , Deco X68 , Deco HC4 , Deco WM9000 , Deco X25 , Deco Voice X50 , Deco X58-4G , Deco X5700 , Deco X4300 Pro , Deco W6000 , Deco BE25-Outdoor , Deco XE5300 , Deco M5 , Deco M4 , Deco X3600 , Deco HX20 , Deco XE75 , Deco M3 , Deco X75 , DecoX5700 , Deco X50-4G , Deco X1500-4G , Deco X50-PoE , Deco X50-Outdoor , Deco Voice X20 , Deco X73-DSL , Deco W7200 , Deco X50-5G , Deco X5400 Pro , Deco P9 , Deco X80 , Deco P7 , Deco HB6300-PoE , Deco X20-DSL , Deco 5G , Deco M5 Plus , Deco X20-4G , Deco PX50 , Deco S7 , Deco X76 Plus , Deco S4 , Deco XE70 Pro , Deco X90 , Deco X3000-5G , Deco W2400 , Deco X50 , Deco X96 , Deco X55 , Deco E4 , Deco E3 , Deco XM73 , Deco HB6300-Outdoor , Deco XE75 Pro , Deco XE200 , Deco X20-Outdoor , Deco X80-5G , Deco X55 Plus , Deco M9 Plus , Deco AC1200 , Deco M3W , Deco X60
Recent updates may have expanded access to feature(s) discussed in this FAQ. Visit your product's support page, select the correct hardware version for your device, and check either the Datasheet or the firmware section for the latest improvements added to your product. Please note that product availability varies by region, and certain models may not be available in your region.
The purpose of a Deco (Mesh) system is to expand Wi-Fi coverage, provide a better mesh experience, and improve the speed at some points. You might not be able to get the same speed as the main Deco when you are using the satellite unit, especially when your broadband is extremely high (e.g. higher than 500Mbps).
Assuming the main Deco could reach full 500Mbps at wireless, the satellite usually won’t reach that high if you are not using Ethernet backhaul. Because of the distance and limitation of Wi-Fi, we usually get lower speed at the position of satellite units when comparing to the main.
Here is a simple example of the above theory:
Network topology:
Client 1 is connected to satellite 1 while client 2 is connected to satellite 2.
Client 2’s speed will definitely be slower than Client 1’s, comparing to Client1, Client2 goes through an extra Deco hop.
Due to the working pattern and protocol/regulation of Wi-Fi technology, the more wireless hops, the slower the speed would be.
This rule applies to any kind of mesh or extender system.
However,there will be no speed difference if you are wiring/connecting Deco units with Ethernet cables. With Ethernet backhaul, all Deco units’ speed would be the same. (Get to know more about Ethernet backhaul)
Moreover, if you want higher speed on a specific Deco unit, use a wired connection on it. As demonstrated in the picture, client3 has a better speed than client2 because it has an Ethernet connection into satellite 2.
Related FAQs
Is this faq useful?
Your feedback helps improve this site.
What’s your concern with this article?
- Dissatisfied with product
- Too Complicated
- Confusing Title
- Does not apply to me
- Too Vague
- Other
Thank you
We appreciate your feedback.
Click here to contact TP-Link technical support

TP-Link Community
Still need help? Search for answers, ask questions, and get help from TP-Link experts and other users around the world.
This website uses cookies to improve website navigation, analyze online activities and have the best possible user experience on our website. You can object to the use of cookies at any time. You can find more information in our privacy policy . Don’t show again
This website uses cookies to improve website navigation, analyze online activities and have the best possible user experience on our website. You can object to the use of cookies at any time. You can find more information in our privacy policy . Don’t show again
Basic Cookies
These cookies are necessary for the website to function and cannot be deactivated in your systems.
TP-Link
accepted_local_switcher, tp_privacy_base, tp_privacy_marketing, tp_smb-select-product_scence, tp_smb-select-product_scenceSimple, tp_smb-select-product_userChoice, tp_smb-select-product_userChoiceSimple, tp_smb-select-product_userInfo, tp_smb-select-product_userInfoSimple, tp_top-banner, tp_popup-bottom, tp_popup-center, tp_popup-right-middle, tp_popup-right-bottom, tp_productCategoryType
Livechat
__livechat, __lc2_cid, __lc2_cst, __lc_cid, __lc_cst, CASID
Youtube
id, VISITOR_INFO1_LIVE, LOGIN_INFO, SIDCC, SAPISID, APISID, SSID, SID, YSC, __Secure-1PSID, __Secure-1PAPISID, __Secure-1PSIDCC, __Secure-3PSID, __Secure-3PAPISID, __Secure-3PSIDCC, 1P_JAR, AEC, NID, OTZ
Analysis and Marketing Cookies
Analysis cookies enable us to analyze your activities on our website in order to improve and adapt the functionality of our website.
The marketing cookies can be set through our website by our advertising partners in order to create a profile of your interests and to show you relevant advertisements on other websites.
Google Analytics & Google Tag Manager
_gid, _ga_<container-id>, _ga, _gat_gtag_<container-id>
Google Ads & DoubleClick
test_cookie, _gcl_au
Meta Pixel
_fbp
Crazy Egg
cebsp_, _ce.s, _ce.clock_data, _ce.clock_event, cebs
lidc, AnalyticsSyncHistory, UserMatchHistory, bcookie, li_sugr, ln_or