In my case the cable was faulty. I was not knowing about it until I rechecked today. With a correct cable between AX55 and desktop, the network speeds got restored. I am not facing internet speed limitation. Apologies for unknown cable defect.

  @Joseph-TP 

I am currently on 1.4.1 Build 20250821 rel.70686(4555) and I am going to update my router to see if I have the same problem. It's a risk but want to help to fix this. I have included screenshots of my current setup and speeds.

1Gbs Internet 1000/100mbps
ALG is Off and Upnp is Off

Fibre -> ONT -> AX55 -> Lan(This PC 1000mbps)

Will report back with an update. Wish me luck

  @DanishSweets90 

On updating my router I have not so far encountered any problems yet. I did notice when you updated it was blank and you had to put your details back in. When I did it nothing like that happened to me. I wonder if you have a dodgy firmware update and wondered if this could be a solution. How to recover the router when it bricked. Will need to get the updated .bin file tho.

If there is any settings I have that differ from yours. Unfortunately I don't use a VPN or Mesh on my router so maybe that could be the issue. Will keep monitoring it and if I get something will let everyone know.

 

  @funmonkey 

Tp link support remoted into my router yesterday for 2 hours, and found lots of things needs improving, maybe my cable needs renewing, but unsure still, but I think mt cat 5e might need a change, as its a very cheap network cable, 

But also might be my actual FTTP connection, but also unsure.

Yet to have another update with a newer firmware version than what I have now, which I got downgraded to 1.4.1 which is alot better than the version 1.5.10, loads webpages and I can do gaming alot faster without hardly legging packet loss, my latency is also 6ms in quite a lot of games. Bur for now the internet with version 1.4.1 seems absolutely fine. The speed however does seem to deteriorated after time, but not sure why its doing so.

  @DanishSweets90 

Im glad there is progress. I will say that I had to put my router on a schedule to reboot each morning as my speeds kept halving Wired/Wireless no idea why it still does it after all the firmware updates. very strange indeed. It's good they can downgrade you. So far at the moment I have not had any problems.

  @funmonkey 

Yes very good progress, the downgrade was a big improvement, but they should be fixing alot of the speed slowness, which is what needs doing, but anyhow they did test everything.

Just waiting on them getting back with me for an update, but I had no issues atall last night, the speed 2 nights before was so bad, I had to keep resetting the router or rebooting it as you have, but they will get it sorted as theyre very good at this.

  @Joseph-TP 

I have disabled the reboot every night at 4am to test if this problem comes back. So far I am at 23 hours 42 minutes and so far the speeds are correct.

Will keep you updated if speeds drop.

Thank You

My Network Setting
 

• Qos Disabled
• Upnp Disabled
• Mesh Not Used
• Homeshield Not Used
• SIP ALG Disabled
• Device Isolation Enabled (IP Cams)
• IPv6 Disabled
• Ultra Power-Saving Mode Enabled 1AM - 6:30AM