Multiple SSID and VLANs dhcp problem

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Multiple SSID and VLANs dhcp problem

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Multiple SSID and VLANs dhcp problem
Multiple SSID and VLANs dhcp problem
2019-04-15 13:59:56 - last edited 2019-04-16 00:31:01
Model: TL-WA901ND  
Hardware Version: V5
Firmware Version: 3.16.9 build 160929 release 37753n

A client is attempting to use multiple SSIDs on access points connected to our Cisco switches.

 

The switches are configured with 802.1Q trunks tagging the required VLANs (in this case 110 and 116).

 

The TP-LInk access point is configured with two SSIDs , one assigned to each VLAN (110 and 116)

 

Both SSIDs can be connected to successfully by clients, however clients on the second SSID (116) do not get an IP address from DHCP. Setting a static IP works fine which along with other indicators seems to confirm that the VLAN trunking between the switch and the access point is working ok.

 

The DHCP server is hosted on a router connected to both VLANs. It recieves dhcp discovers from clients on both SSIDs and sends back appropriate offers. When sniffing the trunk port on the switch that the access point is connected to we see that the dhcp offers are making it this far. The offers however, do not appear to be forwarded to the client by the access point.

 

With further research we have found that whichever of the two VLANs is set as the native VLAN on the switchport trunk works fine, the other exhibits the problem. If neither VLAN is set as native on the switch trunk, both SSIDs exhibit the problem. In short it seems the problem only occurs with tagged VLANs.

 

Access points from other manufacturers (Draytek and Cisco have been tested) do not seem to have this problem when connected to the same trunk port and configured with the same SSIDs and VLANs.

 

Could this be a firmware issue or is there some subtle configuration option we are missing?

 

Thanks

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#1
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5 Reply
Re:Multiple SSID and VLANs dhcp problem
2019-04-16 03:34:42

Hi,

 

We have a new firmware for this access point, please check if that helps:

http://support.tp-link.com/f/0b6a136e01/?dl=1

 

About how to upgrade the access point, please refer to:

https://www.tp-link.com/support/faq/699/

 

Good day!

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#2
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Re:Re:Multiple SSID and VLANs dhcp problem
2019-04-23 16:09:37

Thank you.

 

We will let you know if it works.

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#3
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Re:Re:Re:Multiple SSID and VLANs dhcp problem
2019-04-24 00:56:41

Sure, just take your time to test it.

Any updates, just let us know. 

Good day. 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#4
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Re:Re:Re:Re:Multiple SSID and VLANs dhcp problem
2019-04-29 15:08:26

The firmware you sugested was installed and the problem seems to be fixed.

 

Thank you for your help.

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#5
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Re:Re:Re:Re:Re:Multiple SSID and VLANs dhcp problem
2019-05-03 06:45:13

Hi,

 

Glad to hear that you solved it finally. Congrats. ^_^

 

If need more help in the future, do not hesitate to contact us. 

 

Have a nice day. 

 

Tony_R wrote

The firmware you sugested was installed and the problem seems to be fixed.

 

Thank you for your help.

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#6
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