topic Re: Repeated packet loss, high latency, loss of Internet connectivity in Mobile Broadband

Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Sat, 31 May 2025 09:29:56 GMT

I've has a fixed mobile broadband connection for a couple of years. It's performance gets worse over time.

page after page of crap like this -

Internet connection WAN1 (BT) on port 3 is restored. Today at 10:05

Internet connection WAN1 (BT) on port 3 is experiencing packet loss. Today at 10:04

Internet connection WAN1 (BT) on port 3 is experiencing high latency. Today at 06:24

Internet connection WAN1 (BT) on port 3 is experiencing high latency. May 28, 2025, 05:20

Internet connection WAN1 (BT) on port 3 is restored after a temporary disconnection. May 27, 2025, 05:15

Internet connection WAN1 (BT) on port 3 went down multiple times in the last 24 hours. May 26, 2025, 14:17

Internet connection WAN1 (BT) on port 3 is experiencing packet loss. May 26, 2025, 09:09

Internet connection WAN1 (BT) on port 3 is experiencing high latency. May 26, 2025, 06:51

At the best of times, latency remains high and Internet speedtests show an alarming decline in both upload and download speeds.
Finally CGNAT (Carrier Grade NAT) is an appalling concept that should never have been adopted by a carrier that values its reputation.
I have direct line of site to the 5G cell 110 metres away.

What are my alternatives?

Re: Repeated packet loss, high latency, loss of Internet connectivity

ArmitageShanks — Sat, 31 May 2025 10:08:53 GMT

It seems likely to me that you're suffering the same issue that affected me. The workaround that I implemented is working reliably after a couple of days. With a try for you? https://community.ee.co.uk/t5/Mobile-Broadband/Barely-usable-internet-for-about-a-week/td-p/1537115

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Sat, 31 May 2025 11:20:07 GMT

Thank you for suggesting that.
Unfortunately, my EE supplied and preconfigured router (Zyxel Nebula FWA510 5G) has been locked and switching from the default
Auto (4G/5G) to 5G SA takes the router offline. Internet connectivity is restored immediately I revert to Auto(4G/5G).

I suspect a lot more digging will be required.

Re: Repeated packet loss, high latency, loss of Internet connectivity

ArmitageShanks — Sat, 31 May 2025 11:28:37 GMT

The workaround for me wasn't too do anything with 4G versus 5G. Rather, it was too so it using IPv6 and force it to use IPv4 for the mobile, as opposed to LAN, side of the router. I had to select IPv4 for "PDP type". I think EE have recently broken their internal IPv6 implementation. If your router offers an equivalent setting, I recommend you give it a try.

Re: Repeated packet loss, high latency, loss of Internet connectivity

ArmitageShanks — Sat, 31 May 2025 11:35:09 GMT

Page 72 of this page implies you might have an equivalent setting on your device: https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://download.zyxel.com/Nebula_NR7101/user_guide/Nebula%2520NR7101_V1.15_Ed1.pdf&ved=2ahUKEwi5_M3Mzc2NAxXDW0EAHeL3FxcQFnoECDAQAQ&usg=AOvVaw35vSererrJy72DKyT_Jabu

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Sat, 31 May 2025 12:08:37 GMT

I have tried to do that, in the past. Unfortunately, the EE supplied router has been nailed down, so those options are not available. I spoke to support about using IPv4/IPv6 and they were horrified at the thought. Fortunately I don't play games. If matters continue as they are, I'm going to die of boredom waiting for web pages to load properly.

Re: Repeated packet loss, high latency, loss of Internet connectivity

ArmitageShanks — Sat, 31 May 2025 13:03:03 GMT

Maybe demand they send you a router that allows you to disable IPv6 if they want to retain your custom?

Re: Repeated packet loss, high latency, loss of Internet connectivity

Rach_H — Sat, 31 May 2025 14:18:03 GMT

Hi @Uberseehandel,

Welcome to the Community!

I'm sorry to hear about the trouble you're having with your connection. Have you spoken with our team about the issues you're having?

Rach

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Sat, 31 May 2025 15:14:42 GMT

Good thought, first I'll follow up on Rach_H's intervention😀

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Sat, 31 May 2025 15:17:53 GMT

@Rach_H

Thanks for getting in touch.
I have have previously spoken to support folk. I'll get in touch with them again. Following what @ArmitageShanks managed to do, it seems I need a router that is fully configurable.

Re: Repeated packet loss, high latency, loss of Internet connectivity

Michael_D — Sun, 01 Jun 2025 08:00:05 GMT

I'm sure they'll be able to help @Uberseehandel, but please keep us posted with how you get on with them.

Michael

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Mon, 02 Jun 2025 08:34:39 GMT

@Rach_H

Is there an email address for "fixed mobile 5G broadband" tech support? Sorting this out over the phone is going to be difficult.

Robin

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Mon, 02 Jun 2025 09:49:54 GMT

Dealing with real technical issues over the phone is not productive.

I need to contact an engineer with experience of 5G LTE "fixed mobile broadband". I have an EE supplied router that does not permit useful configuration adjustments. I need to sort this issue with somebody who understands the issues involved which include high latency, dropped packets and disconnection.

Re: Repeated packet loss, high latency, loss of Internet connectivity

JimM11 — Mon, 02 Jun 2025 09:51:36 GMT

@Uberseehandel Then you need to call, nothing else will work!

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Mon, 02 Jun 2025 12:10:15 GMT

@JimM11 JimM11

Thank you.

So it is just misplaced bureaucracy that EE is relying on. If I go to the EE Business web page, it offers contact via WhatsApp. An unconventional choice but preferable to hanging on the phone interminably.

Re: Repeated packet loss, high latency, loss of Internet connectivity

JimM11 — Mon, 02 Jun 2025 12:31:27 GMT

@Uberseehandel If you are needing a 5G router that you can control and change then any ISP one is NOT the way to go.

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Mon, 02 Jun 2025 12:35:04 GMT

@JimM11

Sadly you are correct. If I have to go down that path, I doubt I'll stay with EE.

Robin

Re: Repeated packet loss, high latency, loss of Internet connectivity

Uberseehandel — Tue, 03 Jun 2025 16:05:16 GMT

@JimM11

I have installed a second 5G router from another ISP with more spectrum. Initial tests are favourable. I'll see how it goes for a couple of days and then decide on the next step. Currently the gateway is running in failover mode, which was a pleasant surprise