NBG 6604 terrible upload speed over wifi

euforiamracademia

Hi there. I am an owner of nbg6604 and it generally works ok, but I have this one super annoying problem. From time to time I have to send a bigger file to the cloud, and it is pretty much impossible. My ISP offers a link with 4Mbps upload speed, but I cannot get more than 0.03Mbps when I am connected over wifi. What's interesting, upload over ethernet cable easily saturates said 4Mbps limit. Router software doesn't really offer to many knobs to adjust. Firmware is up-to-date. 5G has same problem.

euforiamracademia

*too many knobs

ikubuf

Which type of file do you send?
Would it happen to upload with the small file?
You can try other file transfer protocols like FTP,SFTP.

euforiamracademia

What do you mean what type of file ? And how does it matter ? It's a tgz archive, and i'm uploading it to amazon's workdocs, but same thing happens if I upload to other services. This *is* a router problem.

tonygibbs16

Hello @euforiamracademia

Are you able to say which version of firmware you are on in your NBG6604 wireless router?

Looking at the Downloads area linked from https://www.zyxel.com/global/en/products/wifi-router/ac1200-dual-band-wireless-router-nbg6604 it seems that the latest firmware is 

V1.00(ABIR.9)C0 from December 2021. HOWEVER, I cannot see in the release notes any specific bug fix for slow upload of binary files such as .tgz files. Kind Regards,      Tony

ikubuf

You can set up static IP on WAN of the NBG device and directly connect another PC with static ip the same subnet on the wan to it and test speed using iperf or build up openspeedtest server on the PC and directly check the performance using wifi client under the NBG router. If the result is the same, it might be the issue on the NBG router. 

tonygibbs16

Hello @euforiamracademia

What @ikubuf writes will allow you to test the throughput of the NBG6604.

There is also some troubleshooting tips for slow connections using WiFi on page 104 of the NBG6604 user guide, such as checking WiFi signal strength and checking for interference from microwave ovens, etc, blocking WiFi.

Kind regards,
     Tony

euforiamracademia

tonygibbs16 said:

Hello @euforiamracademia

Are you able to say which version of firmware you are on in your NBG6604 wireless router?

Looking at the Downloads area linked from https://www.zyxel.com/global/en/products/wifi-router/ac1200-dual-band-wireless-router-nbg6604 it seems that the latest firmware is 

V1.00(ABIR.9)C0 from December 2021. HOWEVER, I cannot see in the release notes any specific bug fix for slow upload of binary files such as .tgz files. Kind Regards,      Tony

That's exactly the firmware I have.

euforiamracademia

tonygibbs16 said:

Hello @euforiamracademia

Are you able to say which version of firmware you are on in your NBG6604 wireless router?

Looking at the Downloads area linked from https://www.zyxel.com/global/en/products/wifi-router/ac1200-dual-band-wireless-router-nbg6604 it seems that the latest firmware is 

V1.00(ABIR.9)C0 from December 2021. HOWEVER, I cannot see in the release notes any specific bug fix for slow upload of binary files such as .tgz files. Kind Regards,      Tony

That's exactly the firmware I have.

PixelAXE

The upload on wifi should work fine with firmware, I have the device and it support 100M on wan port and do not meet the issue.
Not sure if it is network problem.
What @ikubuf writes guide you to test the throughput of the NBG6604. 
You can try the lab.

Zyxel_Jerry

Hi @euforiamracademia

You can try with another client (eg .mobile phone ,laptop ...etc) to upload the file to a different server and check if the symptom would still occur.