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TRB140 20-30 Mbit throughput and 100% CPU usage

+1 vote
392 views 12 comments
by anonymous

we have purchased a TRB140 device last week and we have a similar issue to here: https://community.teltonika-networks.com/3941/rut955-running-at-100%25-cpu-usage-with-no-advanced-config We are using A1 (Telekom Austria) business LTE contract with static IP. At us also at 20-30mbit/s CPU usage is on 100% even when Bridge mode is activated. Please help me here.

Anyone other has the same issue? Is this normal? Model: TRB140 Our FW version is: TRB1_R_00.02.06.1 Modem FW: EC25EUGAR06A05M4G_BETA1108 Product code: TRB14000XXXX Hardware revision: 0007

Thank you.

KR

Ernst

1 Answer

0 votes
by anonymous

Hello,

Thank you for contacting .

May i know what services you are using ?

Could you share a troubleshoot file when you see 100% usage on webui. 

Troubleshoot file could be downloaded in System>Administration>Troubleshoot

Have you tried keeping CPU usage on monitoring , don't use webui for a while and check what usage you see then ? Because sometimes when you are on webui its showing more usage but if you see after some time it drops. If it drops to near 90 its acceptable. 

Thank you.

Regards,

Ahmed

by anonymous
What exactly do you mean by "services"? I tried first to use it as regular "Router" with firewall and NAT and later tried to change to simple Bridge mode but with the same result. Makes no difference. I will send you the troubleshoot file as private message.
by anonymous
Hello,

Thank you for the troubleshoot file.

But may i know if you have observed on a webui if the usage goes down if you don't use?

Have you kept device unattended for an hour and checked later if its still 100% ?

Could you confirm if the device is newly booted up now ? And never used before?

Thanks .
by anonymous
Ah now i know what you mean. The cpu usage is only so high when i use the network. When there is no or little traffic passing through the TRB the usage is on 2-10%.
by anonymous
Hello,

Could you please answer in order to understand things more deeply?

What are you doing usually on the device ?

Where the data is getting consumed ?

What is the device connected to Trb on bridge mode .

Are you transferring or downloading some big files?

Let me know.
by anonymous

Sorry i could see i have not answered some questions from you last comment.

But may i know if you have observed on a webui if the usage goes down if you don't use? -> yes on webui

Have you kept device unattended for an hour and checked later if its still 100% ? -> as this happens only on load i didn´t start a big download for such a long time

Where the data is getting consumed ? -> Speedtest server, tried different ones from different locations and ISPs

What is the device connected to Trb on bridge mode -> Macbook pro

Could you confirm if the device is newly booted up now ? And never used before? -> It was from factory state on yes, purchased as new one, inserted sim and i have just connected my macbook via lan on the device to test it and ran an speedtest. After seeing that i receive 30mbit only (contract is 150mbit max which i receive with mobile phone contract from same ISP on same location), i checked what could be the issue and switched from NAT to Bridge mode, entered APN manually, checked for updates (no new available), did reboots of the device and checked the system load, which was everytime at 98-100% when i started a speedtest. When the speedtest was finished it went down again.

I hope this was more detailed for you :)

by anonymous
Hello,

I tried to replicate the issue on my side . And here are the results:

Tried with a new device .

Configured mobile and then i played 3 1080p videos . The usage was 24-30 % .

Then i run a speed test and the usage started increasing and it touched 100% on my 1st try.

2nd try it was 90% then after 15-20 minutes it fall to 74% and i think this is normal behavior . Because when speed test is running on download it increases and when upload test is running it starts coming down and after end it falls to 20-30%.

Thank you.
by anonymous
Maybe it´s a normal behavior when we get to 150mbit but not on 25-30mbit in my opinion.

I ran now 2 speed tests:

One with an from provider delivered Huawei B535-232 Router and one with the TRB140 on same location with same sim card on same time with same LAN connected Macbook:

On Huawei i get 75-100 Mbit (on 100mbit network card from macbook).

On TRB i got now 15-25 Mbit with 97,75% CPU usage on Max.

So whether it´s caused because of the CPU load or not it´s a poor result.

What can we do here?
by anonymous
Hello,

It depends on the mobile , signals, device location and some other parameters.

You can see this video for further details:

https://www.youtube.com/watch?v=ZZJSqf9Jt1w

What is the model for huawei ?

Thanks .
by anonymous

As mentioned in last message it´s a "Huawei B535-232".

And also as mentioned in last message i have tested both at same time, same location with same sim card and same speed test device.

by anonymous

Hello,

The mentioned Huawei device is much more powerful in features than Telotnika TRB140. We do have such powerful models in Rutx series as well.

But your huawei is LTE CAT7 (300Mbps / 100Mbps) and TRB140 is only LTE CAT4 .

Huawei is Gigabit Ethernet port and TRB140 is CAT4. 

Huawei might have more better signals than TRB140 because of 2 Antennas and TRB140 only has 1 antenna port.

If you test one of our device from Rutx series you will definitely have almost the same results as Huawei because of same features.

Thanks. 

by anonymous
Yes, but you mentioned up to 150mbit and not up to 25mbit in the product. So when this is your explaination then you should not advertise it as 150mbit and i want to refund it. Signal is very good on both devices and i´ve got 100mbit lan port on macbook so this should not make any difference in my test. I have bought an 150mbit device and not an 25mbit device. How should we proceed?
by anonymous
Hello,

May i know what are the bands used by huawei device , have you tried to keep the same bands manually on TRB device.

Might be LTE band that is automatically choosen by TRB has lets suppose -55dbm but less bandwidth and may be LTE band choosen by huawei has -64rssi and higher bandwidth.

Further the 150mbps bandwidth is basically in lab conditions. Have you tried with another LTE CAT4 device , what are the results on that?

Please let me know.

Thanks.