Slow web-interface in standalone mode

MWachter

Hello,

i bought an XMG1915-18EP. Its web-interface is very slow so that configuing is nealy impossible. It takes seconds to minutes until the dashboard appears.

I did not change anything from factory defaults exept passwort and disabling Nebular Cloud. Tested with different browsers (Firefox / Edge) on different computers.

Any suggestions what is going wrong?

Greetings

Michael Wachter

Zyxel_Kay

Hi @MWachter

To improve the web interface performance of your XMG1915-18EP, please try the following steps:

1. Network Congestion: Ensure there’s no heavy network traffic while accessing the device. Disconnect unnecessary devices or close bandwidth-intensive applications.
2. IP Conflict: Check if there are any IP conflicts in your network setup. This can sometimes slow down device communication.
3. Firmware Update: Verify that your device is running the latest firmware. Updates often include performance improvements.
4. Ethernet Cable: Replace the Ethernet cable with a new or known-working one to rule out any cable-related issues.

If the issue persists after trying these steps, kindly collect the switch’s tech support file and send it to us via private message. We’ll assist you further from there.

MWachter

Hello Kay,

as I use DHCP to assign the IP-address to the switch, where should be no IP conflict. I also updated to the new firmware but nothing changed.

When playing around with different ethernet-cables to rule out that issue too, i found the following strange behaviour:

• My setup looks as follows: the computer I used to access the web-interface (computer 1) is not connected to the XMG1915-18EP directly. It is connected via another switch, a Zyxel XS1930-10.
  
  Computer 1 uses a 10 Gbit connection to connect to the XS1930-10. The Connection between the XS1930-10 and the XMG1915-18EP uses a 2.5 Gbit connection.
  
  For testing I set up Open-Speed-Test on a local server which is also connected with 10 Gbit to the XS1930-10
  
• If I use another computer (computer 2) connected directly to the XMG1915-18EP with 2.5 Gbit, accessing the web-interface of the XMG1915-18EP works fine. Running Open-Speed-Test the download speed is around 2.5 Gbit as expected, but the upload speed is very bad around 1 Mbit.
  
• If I connect computer 2 directly to the XS1930-10 running the speed-test is as bad as before.
  
• If I turn down the port used on the XS1930-10 to 1 Gbit the speed-test shows speed around 1 Gbit as expected.
  
• Connecting the same port on the XS1930-10 to the XMG1915-18EP with Speed set to 1 Gbit, accessing the web-interface from computer 1 also works fine.
  
• I then used a 10 Gbit Copper SFP+ module to connect the XMG1915-18EP to the XS1930-10 and set the Speed back to „auto“ for the port on the XS1930-10. Using the same ethernet-cables as when testing with 2.5 Gbit, a 10 Gbit link is established and access to the web-interface and speed-test work as expected.

It looks like the XS1930-10 has some problems when running with 2.5 GBit. As I did not use the XS1930-10 with 2.5 Gbit before, I don’t know if this is a configuration issue or a problem with the hardware of the XS1930-10.

I will send you the tech support files for both switches for the good and the bad case.

Any suggestions how to continue troubleshooting?

Greetings

Michael Wachter