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kymadn

XR500 - Wi-Fi and LAN not communicating properly

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My mate recently purchased an XR500 and I recently got the XR300. We both have a CCTV system connected to our LAN using these gaming routers. He has been having issues connecting to the CCTV on Wi-Fi, but he can connect over cellular with no problems at all. 

We tried many different combinations of wireless settings. No matter what we did, we could not load the config webpage for the CCTV on Wi-Fi with a laptop. However we could ping the CCTV over Wi-Fi. If we connected the laptop into LAN, it loaded config webpage no problem.

It was the same for the CCTV software on Wi-Fi the CCTV (192.168.1.100) shows as offline. When we connect to LAN 192.168.1.100 shows online immediately. All devices have internet access on Wi-Fi. But for some reason LAN and Wi-Fi aren't communicating properly.  It is almost as if access to a LAN device is blocked for a wireless device.

The CCTV system uses ports 37777 and 37778. I dont understand why he has this trouble on his network. I have the exact same setup (same CCTV, same IP range), the only thing which is different is the model XR300 and XR500. Also he has VLAN tagging for his NBN connection to work. Could VLAN tagging cause this issue?

Anyone got any ideas?

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It's possible that VLAN could be causing it but lets take a look at some other options first. Most WiFi issues I've seen are to do with smart connect being enabled as not all devices support it very well, especially older devices. Have you tried disabling smart connect and connecting directly to 2.4GHz?

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We disabled smart connect. Same issue on both 2Ghz and 5Ghz. We also just tried disabling the VLAN tagging and trying to connect to the CCTV webpage over Wi-Fi. Both 5Ghz and 2Ghz did not work. 

Any other suggestions? 

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No luck with disabling QOS and Bufferbloat. 

Anything else we can try before doing a full factory reset?

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I took my XR300 and swapped it with his XR500 and we were able to connect to the CCTV on Wi-Fi. 

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Really strange. Have you tried enabling the guest network on the XR300 and connecting from there? I have a theory that the permissions for the guest network are kind of screwy.

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This appears to be an issue caused by VLAN tagging. The default VLAN tag 2 for internet is applying to LAN ports and wireless by default. The ISP website says that VLAN tags do not need to be applied to wireless but this cannot be changed for the default internet VLAN. See below setting from ISP website for VLAN tagging:


image.png.f8f8a00fde3eb800d81e189532b1447e.png

 

The information I have found says that a VLAN bridge may need to be created so Wi-Fi and LAN communications do not need to pass through the router Network Address Translation. 

FYI we were able to communicate with CCTV device on LAN via Wi-Fi after we did a factory restore and no VLAN tagging enabled.

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You cant edit the default Vlan tag. The default Vlan tag is applied to all port and wireless. It wont allow me to edit the rule

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12 hours ago, kymadn said:

You cant edit the default Vlan tag. The default Vlan tag is applied to all port and wireless. It wont allow me to edit the rule

Click on the selector circle for the default VLAN tag then click edit. Then change VLAN ID to 0 which then means VLAN is not used for the group and apply. Then you should be able to make your own VLAN tags how you wish.

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