Broadband drops every day - support can't see any issues

[arranged]

Hi,

Support can't seem to help me despite 10's of calls and complaints being logged so I thought I'd try here in case anyone has any advice.

Everyday my broadband drops for about 5mins or so. I get blue lights on the front of the router and all lights go off on the back. Support can't see any issues their end so have said there's nothing else they can do. I've had a replacement router and an engineer to check the line but nothing seems to helps.

I managed to pull the router logs for the most recent outage. Ssomething that stands out is that the following 3 errors are repeated 4400 times in the 2 hour period. I wondered if anyone could shed any light on what they mean.

[ERROR pktrunner] runnerUcast_activate

ERR: bdmf_attrelem_add_as_buf#4298: ucast: status:Entry doesn't exist. attribute:flow  index:4294967295

ERR: ucast_prepare_rdd_ip_flow_result#782: status:Entry doesn't exist ucast: US egress queue 0 is not configured

 I also tried internet monitoring software (now disabled) which suggests I get 50% packet loss, that also seems strange but support assure me it's normal.

I'd appreciate any support or hints that anyone can give?

Thanks in advance.

[Cynric]

@arranged There is something more about this error here; https://www.snbforums.com/threads/vodafone-router-issues-vodafone-say-nothing-is-wrong.88643/

Paging @Ripshod to the courtesy phone 😁

[billhinge]

This is part of the broadcom chipset kernel that the UltraHub uses - also lots of others like netgear/asus 

uses (it

Go to https://github.com/search?q=bdmf_attrelem_add_as_buf&type=code

see this file  https://github.com/ghostnup/asuswrt-merlin.ng/blob/991f9b4abe1f24f4e24ef2169c28fa4cd39cd7e2/release/...

line 4309

This may be more useful..

see https://github.com/ghostnup/asuswrt-merlin.ng/blob/991f9b4abe1f24f4e24ef2169c28fa4cd39cd7e2/release/...

when looking for ucast_prepare_rdd_ip_flow - see line 498 (%u is a variable - = 0 in above case

BDMF_TRACE_RET(rc, "ucast: US egress queue %u is not configured\n",
info->result.queue_id);

This module handles rdpa and rdd which looking up are

RDPA allows networks to implement advanced routing strategies, such as:

1. Route optimization: choosing the best path for packet forwarding based on multiple factors.
2. Policy-based routing: applying custom policies to specific traffic flows.
3. Traffic engineering: optimizing network performance and reliability.

and see https://openwrt.org/toh/vodafone/vodafone_power_station?s[]=rdpa 

for RDPA and RDD 

I think the gist is that its a routing problem with the router, what causes it who knows without running code on a debugger

[Ripshod]

Vodafone like to force a daily reconnect though this is usually between midnight and 5am.

I'd like to see a thinkbroadband BQM as there's going to be more going on than just packet loss. 

[Cynric]

@Ripshod I think I would see TR069 messages in the log if it was the daily kick.

[Ripshod]

You don't get any tr-069, the reconnect is initialised by the gateway, rather than someone sat at a pc. 

[Cynric]

@Ripshod Hmmm. When I used the THG3000 its daily restarts (often at an inconvenient time) had a TR069 dialogue initiated by VF.

[Ripshod]

Unless the restart was for another reason. The normal nightly refresh comes from the gateway

[Cynric]

@Ripshod My reboots used to slowly creep around the clock. The interval was always approximately 23 hours.