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Three Home Broadband: Zyxel NR5103E drops connection and WILL NOT RECONNECT AUTOMATICALLY

456
Involved

on ‎03-20-2023 03:47 PM

on ‎03-20-2023 03:47 PM

Extremely frustrating - every time it rains, the router drops connection and DOES NOT RECONNECT automatically. It has to be rebooted manually, which you can only do from home.

If you're away from home and rely on your home broadband to monitor your home and your pets, you're screwed. This needs to be fixed ASAP.

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Best solution
devaraja
Active
In response to JonathanB

on ‎08-15-2023 09:23 PM

on ‎08-15-2023 09:23 PM

hi @JonathanB , i dont thing the change was done on the router, because:

  1. i check the APN and the wan setting before and after the talk with the support team and there was no change.
  2. i did manually change it to ipv4 explusively, then to ipv4+ipv6 and the speed was the same
  3. i did a factory reset on the modem just in case, and did all the manual change below including the apn address and ap IP version and still the speed was the same.

Only afthe the second chat with the level 2 support. i managed to regain the speed.

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bulldog555
Involved
In response to 456

on ‎03-24-2023 02:54 PM

on ‎03-24-2023 02:54 PM

It's been heavy rain here but it doesn't affect my router with firmware B12 as 5G never drop out. But if it does, it will go to LTE then reconnected back to 5G no problem - no need to reboot router.

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nsmhd
Regular

on ‎03-20-2023 04:17 PM

on ‎03-20-2023 04:17 PM

Yeah I noticed this too especially when using cellular IP pass-though mode you sometimes have to reboot both routers. 

crypt0ninja
Established
In response to nsmhd

‎03-21-2023 11:33 AM - edited ‎03-21-2023 11:49 AM

‎03-21-2023 11:33 AM - edited ‎03-21-2023 11:49 AM

Yeah I'm using passthrough to my Deco PX50 units and I notice that if the NR5103E IP changes or it switches cells (which is not a rare occurrence and results in IP change) then the passthrough device(s) (my Decos) lose connectivity as they don't immediately pick up the change in connection, sometimes this resolves itself after a few minutes and I notice the IP then changes in the Deco app, but often I notice they don't pick up the change at all when this happens, so they lose internet connectivity completely and I have to reboot the Deco units for them to pick up the change and have an established internet connection again.

I can replicate this issue by forcing a band selection change that causes a switch to a different cell which changes the IP address etc. as the issue I have explained above occurs when doing this.

Initially thought that this may have just been an issue with my Deco PX50 units picking up the IP address/connection change as they are a fairly new release but now I'm wondering if its an issue with passthrough mode...

@JonathanB can you please ask the internal team to conduct some testing on this?

They should be able to replicate this by forcing a band selection that switches cell/IP address when using IP Passthrough mode. The correct result should be the passthrough devices picking up the new connection details immediately, but this does not seem to happen for me so interested to see if they can replicate this as an issue or not.

I've also noticed this happening very late in the evening when a local cell I use goes offline for some reason (probably maintenance as it comes back online by the time I wake up) as my Deco's lose connectivity, and when comparing the router and deco connection stats I can see that the NR5103E has switched cell/changed IP whilst my Deco's are still showing the previous connection details.

Cheers 🙂

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