Wifi clients can't access LAN for minutes after connecting
Hello everyone,
I am experiencing weird issues in my network, using an Archer VR600v v2 ("main wifi") and the TL-WPA8630P Kit (Hardware v1; "sec. wifi").
My setup:
- both devices have the same wifi configuration
- Archer is handling DHCP
- primary and secondary DNS in the Archer points to a pi-hole running on a fixed IP in the LAN (static assignment by Archer's DHCP)
- "AP isolation" is turned off
- no guest networks are enabled
Case 1:
Wifi device connects to main wifi, hasn't been connected to sec. wifi before.
=> WAN and LAN are accessible without any issue, the device is shown connected via "wireless" in the Archer, not listed in the TL-WPA.
Case 2:
Wifi device connects to sec. wifi, has or hasn't been connected to main wifi before (i.e. doesn't matter).
=> WAN and LAN are accessible without any issue, the device is shown connected via "wired" in the Archer, "wireless" in the TL-WPA.
Case 3:
Wifi device connects to main wifi, has been connected to sec. wifi before.
=> WAN access works fine (except DNS, so basically unusable), LAN access won't work for ~5 minutes. The device is shown connected via "wireless" in the Archer, "wireless" in the TL-WPA. After ~5 minutes, all is shiny, the device will still be listed "wireless" in the TL-WPA for a while but disappear eventually.
Since I've got services running locally that I need to be able to access from anywhere in the house, that's an issue for me. Plus I think it shouldn't be an issue anyway.
I'll be thankful for any hint on how to figure out what's wrong with my setup or how to solve this.