@YASPE 

Hi, is the current firmware 1.7.0 3.0.0 v60a2.0 Build 250904 Rel.72968n?

May I know your mobile ISP?

"when switched to 5G (5G NR), it starts dropping packets and experiencing ping times of up to a second at times."

-When it happened, would there be any change to the internet light on the Archer NX200?

-How about the internet status here:

Best regards.

  @Tsino 

Hi, welcome to the community.

Is everything going on well on the current 1.0.0 3.0.0 v60e0.0 Build 240822 Rel. 76438n version?

Compared with 1.0.0, 1.2.0 hasn't made a huge adjustment, and several minor refinements have been made to improve the system stability and security.

As the 1.2.0 can't revert to 1.0.0 after the upgrade, if the router is working fine as it is, it is reasonable to stay on the 1.1.0.

Moreover, I don't think the issues summarized by GPT just started after the 1.2.0 firmware upgrade. This version, in general, is still worth a try, and we'd love to offer any further assistance if anything went wrong.

Thank you very much.

Best regards.

  @YASPE 

Hi, thank you very much for the update.

Can you consistently reproduce this issue on this laptop, dropping packets and experiencing ping times of up to a second at times?

-If yes, can I have the model number of this laptop? Is it connected to Archer NX200 via an Ethernet cable or by WiFi?

The ping test isn't as bad as it sounds, and if it can't be reproduced in a short time, further troubleshooting wouldn't be easy.

Thanks a lot.

Best regards.

  @YASPE 

Hi, thanks for your time and patience.

YASPE wrote

  @David-TP 

I performed the ping from a device with an FTTH connection. I was pinging the dynamic IP address provided by the NX200.

So, using a laptop to ping the WAN IP address from the internet, then. Can you consistently reproduce this issue when Archer NX200 is on the 5G network type, as the ping test in the screenshot doesn't look very bad:

By the way, how about the clients connected to Archer NX200? Were they running into any issues when NX200 is on the 5G network, such as slow loading during web page surfing/video streaming?

Wait for your reply.

Best regards.

  @YASPE 

Hi, thanks for the update.

It depends on the mobile ISP whether the 5G network is SA or NSA, and most mobile operators currently deploy 5G as Non-Standalone (NSA), which relies on existing 4G infrastructure. This is indeed a common approach in the early stages of 5G rollout. The Archer NX200 is fully compatible with both NSA and SA architectures. 

Packet loss in a 5G connection can stem from various sources, making it a common but complex issue to diagnose. Potential causes include Physical obstacles or radio frequency interference between the cellular tower and the router, the inherent instability of some early-stage 5G deployments, as well as the router software. It would be much easier if the packet loss could be consistently reproduced on certain devices; otherwise, it might be challenging to finally locate the root cause.

As for the new firmware, I think you refer to "1.2.0 3.0.0 v60e0.0 Build 250725 Rel. 73467n". Based on the release note, it may not directly resolve this particular intermittent packet loss, but it won't harm to always keep the firmware up-to-date.

Thank you very much for your understanding and support.

Best regards.