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raj_121
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Hub 3.0 unstable connection & dropouts

Hi There,

For the past week or so I have been experiencing dropouts in my WiFi wireless connection. This has impacted video calls and working from home issues.

I am really baffled as to what has caused this problem and finding out how to resolve this.

Basically, since I have had internet and have been using all my devices using WiFi (wireless) connection and they have been working great and I run an access point for where I don’t have good wifi strength. Last week I noticed that my internet on my phone (and all other devices) would cut out randomly and I would have to search for the WiFi again to connect to the network.

I used ookla to run some speed testing on these wireless devices, testing and re-testing in the same location one test after another resulting in varying download speeds (fairly consistent uploads), and then randomly the internet connection would drop until I manually search for the WiFi router and connect back sometimes it would be within seconds sometimes minutes. This has been getting worse and worse.

I also run a Unifi Access Point – Ubiquiti UAP-AC-LITE, for the back of the house in my office and I have never had any issues with this it provides connection where signal is weak, it has been the best thing. Now it has faced the same problems as the router when the connection is disrupted on the Router it will also occur on the Access Point (im not sure if this is simultaneously or at the same time). Sometimes it takes seconds to reconnect sometimes it takes longer. On some devices when I try to reconnect straight after the connection has dropped it will say “Incorrect Password” upon connecting to either the router or access point.

No changes have been made to my hardware which is what is baffling me. I have checked all termination points, Coaxial termination externally and internally, all finger tight connections. There are no obvious kinks running in any of the wiring.

I have reconnected all ports and reset the hub.

The only thing which may have remotely had an effect is the electricity power was turned off to add sockets to a different room in the house. So maybe the access point has turned off and the WiFi router has turned off at different points affecting signalling between the two? But surely Resetting this would have brought things back in line?

Since then, I have disconnected my Access Point so I am only using the Router. I am still experiencing the same issues with the Hub 3.0 whilst within close proximity. Checked the ookla speeds and same results - they are varying.

Now I have managed to use the same Ethernet that was connected to the Access point to my laptop and now I am not experiencing such dropouts (but I am not holding my breath). But I don’t understand why there is problems with my access point when diagnostic show it is working ok as well as my router having issues, as well as the fact that I haven’t changed my setup.

Can anyone share light on this matter. I really wish I could understand these networking issues abit better and troubleshoot. Apologies for the long story or any information which I haven’t included I hope someone can help me.

 

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raj_121
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Re: Hub 3.0 unstable connection & dropouts

Below are my diagnostics

Broadband Quality Monitor - Live Graph https://www.thinkbroadband.com/broadband/monitoring/quality/share/aa1050a6c8c3a94356a6b50c96bf18b603...

My router status is below:

Cable Modem Status

Item

Status

Comments

Acquired Downstream Channel (Hz)

331000000

Locked

Ranged Upstream Channel (Hz)

60300085

Locked

Provisioning State

Online

 

Downstream bonded channels

Channel

Frequency (Hz)

Power (dBmV)

SNR (dB)

Modulation

Channel ID

1

331000000

3.5

38

256 qam

25

2

267000000

3.2

40

256 qam

17

3

275000000

3.2

38

256 qam

18

4

283000000

3.7

40

256 qam

19

5

291000000

4.1

40

256 qam

20

6

299000000

4

40

256 qam

21

7

307000000

3.7

40

256 qam

22

8

315000000

3.5

38

256 qam

23

9

323000000

3.4

38

256 qam

24

10

339000000

3.5

38

256 qam

26

11

347000000

3.5

40

256 qam

27

12

355000000

3

40

256 qam

28

13

363000000

2.5

40

256 qam

29

14

371000000

2.2

38

256 qam

30

15

379000000

1.9

38

256 qam

31

16

387000000

1.5

38

256 qam

32

17

395000000

1

38

256 qam

33

18

403000000

0.7

38

256 qam

34

19

411000000

0.9

38

256 qam

35

20

419000000

0.7

38

256 qam

36

21

427000000

0.7

38

256 qam

37

22

435000000

1

38

256 qam

38

23

443000000

1

40

256 qam

39

24

451000000

1.2

40

256 qam

40




Downstream bonded channels

Channel

Locked Status

RxMER (dB)

Pre RS Errors

Post RS Errors

1

Locked

38.9

6

0

2

Locked

40.3

13

0

3

Locked

38.9

6

0

4

Locked

40.9

7

0

5

Locked

40.3

8

0

6

Locked

40.3

6

0

7

Locked

40.3

4

0

8

Locked

38.9

9

0

9

Locked

38.9

4

0

10

Locked

38.9

11

0

11

Locked

40.9

14

0

12

Locked

40.9

10

0

13

Locked

40.3

4

0

14

Locked

38.9

5

0

15

Locked

38.9

3

0

16

Locked

38.9

20

0

17

Locked

38.9

17

0

18

Locked

38.9

29

0

19

Locked

38.9

24

0

20

Locked

38.9

35

0

21

Locked

38.9

27

0

22

Locked

38.9

23

0

23

Locked

40.3

13

0

24

Locked

40.3

7

0

Upstream bonded channels

Channel

Frequency (Hz)

Power (dBmV)

Symbol Rate (ksps)

Modulation

Channel ID

1

60300085

35.2

5120

64 qam

9

2

39400000

37.3

5120

64 qam

12

3

46199971

35.3

5120

64 qam

11

4

53699983

35.3

5120

64 qam

10


Upstream bonded channels

Channel

Channel Type

T1 Timeouts

T2 Timeouts

T3 Timeouts

T4 Timeouts

1

ATDMA

0

0

0

0

2

ATDMA

0

0

0

0

3

ATDMA

0

0

0

0

4

ATDMA

0

0

1

0

General Configuration

Network access

Allowed

Maximum Number of CPEs

1

Baseline Privacy

Enabled

DOCSIS Mode

Docsis30

Config file

dJKDHSUBsgvca69834ncxv9873254

Primary Downstream Service Flow

SFID

2984

Max Traffic Rate

230000061

Max Traffic Burst

42600

Min Traffic Rate

0


Primary Upstream Service Flow

SFID

2981

Max Traffic Rate

22000061

Max Traffic Burst

42600

Min Traffic Rate

0

Max Concatenated Burst

42600

Scheduling Type

BestEffort

 

 

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raj_121
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Re: Hub 3.0 unstable connection & dropouts

Network Log

Time

Priority

Description

08/02/2021 09:39:2

notice

LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

08/02/2021 09:38:57

Warning!

LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

08/02/2021 09:38:39

notice

LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

08/02/2021 09:37:35

Warning!

LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

07/02/2021 03:11:10

critical

No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:44

Warning!

Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:40

Warning!

RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:39

critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:38

Warning!

RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:38

critical

SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

06/02/2021 21:24:30

Warning!

RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:12:8

critical

No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:12:8

critical

Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:08:8

critical

No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:08:8

critical

Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:07:48

critical

No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

05/02/2021 12:07:48

critical

Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

04/02/2021 23:27:26

critical

No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

 

 

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raj_121
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Re: Hub 3.0 unstable connection & dropouts

Can anyone help me with the query.

I have triple checked hardware all connections seem to be good and my router looks to be fine.

I am still using a hardwired connection into my laptop which is pretty stable my only issue now is my wireless connection to my iPhone and iPad seem to be failing me on video calls and such things. It is just unstable.

Is there anything i need to change in my setup??
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tehwolf
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Re: Hub 3.0 unstable connection & dropouts


@raj_121 wrote:
Can anyone help me with the query.

I have triple checked hardware all connections seem to be good and my router looks to be fine.

I am still using a hardwired connection into my laptop which is pretty stable my only issue now is my wireless connection to my iPhone and iPad seem to be failing me on video calls and such things. It is just unstable.

Is there anything i need to change in my setup??

Nothing obvious wrong with your stats.. a few channel drops in your log (rcs partial service) but they all hit at the same time so possibly a one off? it's worth checking to see if you're getting these regularly..

as for the wifi not working.. the unifi kit is decent quality - i use it myself and don't suffer from any dropouts at all - it has been very reliable for the last ~5 years.

Do you use the same SSID across the hub & the unifi? or do you have different ones?

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Re: Hub 3.0 unstable connection & dropouts

Thank you so much for the reply tehwolf. I appreciate you taking the time to read my long post. 

Yes I use the UAP-AC-Lite with a separate SSID and has worked like magic. Thats why I couldnt understand why there were dropouts on both the UniFi network as well as my router network (maybe because it is in Router mode?). Which made it difficult to troubleshoot and made me believe something was wrong with the router/ISP.

I am actually looking to put a couple of APs in the house and use the Unifi Switch + USG to create a fully functioning network that I can control abit better and use the hub in modem mode but once I know everything is ok with the current network. But I also wish I was more knowledgable in the world of networking to understand the best way to setting this system up lol.

So since this was posted I found the Ethernet connection is stable for working, my family's Samsung devices on "5GHz" has been running pretty smooth (to my knowledge).

The only issue now is my devices - iPhone and iPad, I checked and saw these were on 2.4GHz. Ive heard John mention iDevices are better on 5GHz and to separate out the 2.4GHz and 5GHz and by disabling the WiFi optimisation and use separate networks which I will give a go. Tbh I also need to switch my work laptop from the wired connection and plug the UAP-Lite back in and maybe try and see how that is running now? 

What do you think is the best thing to do now?

Also sorry for the dumb question but I have looked at the BQM and all I see is Red - Dropped packet from since ~9am today? not sure why this is? Is it because I logged in onto my computer at that time. 

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tehwolf
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Re: Hub 3.0 unstable connection & dropouts


@raj_121 wrote:

Thank you so much for the reply tehwolf. I appreciate you taking the time to read my long post. 

Yes I use the UAP-AC-Lite with a separate SSID and has worked like magic. Thats why I couldnt understand why there were dropouts on both the UniFi network as well as my router network (maybe because it is in Router mode?). Which made it difficult to troubleshoot and made me believe something was wrong with the router/ISP.

I am actually looking to put a couple of APs in the house and use the Unifi Switch + USG to create a fully functioning network that I can control abit better and use the hub in modem mode but once I know everything is ok with the current network. But I also wish I was more knowledgable in the world of networking to understand the best way to setting this system up lol.

So since this was posted I found the Ethernet connection is stable for working, my family's Samsung devices on "5GHz" has been running pretty smooth (to my knowledge).

The only issue now is my devices - iPhone and iPad, I checked and saw these were on 2.4GHz. Ive heard John mention iDevices are better on 5GHz and to separate out the 2.4GHz and 5GHz and by disabling the WiFi optimisation and use separate networks which I will give a go. Tbh I also need to switch my work laptop from the wired connection and plug the UAP-Lite back in and maybe try and see how that is running now? 

What do you think is the best thing to do now?

Also sorry for the dumb question but I have looked at the BQM and all I see is Red - Dropped packet from since ~9am today? not sure why this is? Is it because I logged in onto my computer at that time. 


Well. i'll never discourage anyone from ditching the hub and replacing it with decent network gear (which the unifi stuff is..) but you are right to want to make sure there are no underlying problems before you spend the money.

re: the splitting of 2.4/5ghz bands.. it's never something that i have had an issue with.  i have four unifi AP's dotted around the house and various different types of client devices, none of which struggle to connect to the correct band on the unifi kit.. so I've always assumed that the hub is just rubbish and confuses devices when i see posts about it on here.. it's not something that i have ever had an issue with though.  

i think it's worth reconnecting the unifi AP and see how it performs.. can you see the unifi network on your devices when you're stood near to the hub? if so, you could try to disable the wifi on the hub completely (whilst in router mode) and just rely on the unifi AP for wireless - it could be that the drops you're seeing are a result of RF interference - and with two separate devices broadcasting different networks, you're potentially adding to the problem by having the hub broadcasting at the same time.. 

the all red means one of two things.. either your IP address has changed, and you need to re-set up your BQM, or your hub is rejecting ICMP packets (not sure if this is configurable on the hub or not to be honest..)

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Re: Hub 3.0 unstable connection & dropouts

@tehwolf - You my good sir, are a legend. Thanks for the replies mate!

I'll have a look at reconnecting the AP tonight but yeh i usually  see the UAP wifi when Im near the hub. So I will see if the problem is the RF and interchanges between the two networks.

When you mention Disabling the WiFi on the hub whilst in Router Mode - How would you go about thaty? Is this something I can do in the Hub settings?  

 

 

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tehwolf
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Re: Hub 3.0 unstable connection & dropouts

 


@raj_121 wrote:

@tehwolf - You my good sir, are a legend. Thanks for the replies mate!

I'll have a look at reconnecting the AP tonight but yeh i usually  see the UAP wifi when Im near the hub. So I will see if the problem is the RF and interchanges between the two networks.

When you mention Disabling the WiFi on the hub whilst in Router Mode - How would you go about thaty? Is this something I can do in the Hub settings?  

 

 


Yes, in the hub settings - Advanced -> wireless - just disable the broadcast for both 2.4 and 5ghz channels.

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