Kitz ADSL Broadband Information
adsl spacer  
Support this site
Home Broadband ISPs Tech Routers Wiki Forum
 
     
   Compare ISP   Rate your ISP
   Glossary   Glossary
 
Please login or register.

Login with username, password and session length
Advanced search  

News:

Author Topic: Why is my 5G router getting such low speeds?  (Read 1127 times)

MonkeyMalloo

  • Just arrived
  • *
  • Posts: 1
Why is my 5G router getting such low speeds?
« on: November 09, 2025, 02:49:46 PM »


Hi,

I’ve been trying (unsuccessfully) to get better 5G speeds with my new mobile router setup but it’s really mashing my melon now!

So I’ve got a 5G router (TP-Link Archer NX200) paired with an external 5G antenna (Poynting XPOL-1-5G V2). This is then using a Lebara sim.

So the bit I can’t understand is that in various places outside my house at ground-level I can get speeds of 300mbps on my phone using a Vodafone sim, yet when I installed the antenna up on a mast on the roof the maximum I get on the router is 50mbps.

I tried swapping my VF sim over and put it in the router - still 50mbps. If I put the Lebara sim from the router into my phone I get 200mbps. Spent hours trying the antenna in loads of different spots on the roof and at any spot the router was getting no more than 20-50mbps, whilst standing next to it I could easily get 200-300mbps on my phone.

I could see the router signal strength light was fluctuating between 50% - 75%+ even when the antenna was fixed in position and nothing was moving.

I’m running out of ideas and just wondered if it could be a setting on the router, currently everything is just on its default, out-of-the-box settings? Or is the antenna I’m using just no good? Surely a dedicated 5G antenna should get better speed than my iPhone, or is that not the case?

Would be really grateful for any help or ideas?
Logged

Alex Atkin UK

  • Addicted Kitizen
  • *****
  • Posts: 5570
    • Thinkbroadband Quality Monitors
Re: Why is my 5G router getting such low speeds?
« Reply #1 on: November 09, 2025, 03:36:13 PM »

External antennas kinda suck, you lose a LOT of signal down the cabling which is why having the router built-in to the antenna is a popular option these days.

More importantly, the external antenna is only 2x2 MIMO whereas the router internally has 8 antennas which likely means it can do 8x8 MIMO.  So potentially you are losing 3/4 of the speed if you are only picking up a signal on the external antennas.

I believe external antenna ports are more a last resort to get ANY signal and unlikely to be very optimal for performance.
« Last Edit: November 09, 2025, 04:42:50 PM by Alex Atkin UK »
Logged
Broadband: Zen Full Fibre 900 + Three 5G Routers: pfSense (Intel N100) + GL.iNet GL-X3000
Network: Netgear MS510TXUP, Netgear MS510TXPP, Netgear GS110EMX WiFi: Zyxel NWA210AX + Ubiquity NanoHD
Broadband History & Ping Monitor

Dwight

  • Reg Member
  • ***
  • Posts: 324
Re: Why is my 5G router getting such low speeds?
« Reply #2 on: November 10, 2025, 10:19:13 AM »

Hi,

I’ve been trying (unsuccessfully) to get better 5G speeds with my new mobile router setup but it’s really mashing my melon now!

So I’ve got a 5G router (TP-Link Archer NX200) paired with an external 5G antenna (Poynting XPOL-1-5G V2). This is then using a Lebara sim.

So the bit I can’t understand is that in various places outside my house at ground-level I can get speeds of 300mbps on my phone using a Vodafone sim, yet when I installed the antenna up on a mast on the roof the maximum I get on the router is 50mbps.

I tried swapping my VF sim over and put it in the router - still 50mbps. If I put the Lebara sim from the router into my phone I get 200mbps. Spent hours trying the antenna in loads of different spots on the roof and at any spot the router was getting no more than 20-50mbps, whilst standing next to it I could easily get 200-300mbps on my phone.

I could see the router signal strength light was fluctuating between 50% - 75%+ even when the antenna was fixed in position and nothing was moving.

I’m running out of ideas and just wondered if it could be a setting on the router, currently everything is just on its default, out-of-the-box settings? Or is the antenna I’m using just no good? Surely a dedicated 5G antenna should get better speed than my iPhone, or is that not the case?

Would be really grateful for any help or ideas?



What speed do you get with out the antenna?
Have you tried different angles and alinements?
Is this passive or powered?
Logged
Youfibre 150, Tplink AX55 Pro.