2.4 Ghz ssid doesnt connect
i bought a new Archer GX90 triband router from amazon july this year. everything was working fine until 3 days ago. 2.4 Ghz SSID regular and guest cannot be connected on any devices it simply gives an error message connection failure.
working with support i had done below already but, none helped resolve the issue.
1. changed SSId
2. changed ssid password
3. power recycled
4. changed channels
5. changed bandwidth from Auto to 20 Mhz
6. lastly did a factory reset and reestablished.
i have a very simply setup none of the advanced stuff. My wired n/w is still is good as it was day 1 and my 5G1 and 5G2 are working fine too.the issue is only with 2.4 i see the ssid's but unable to connect. i am update to date on all firmware and related stuff.
i am not using wpa3 i am still on wpa/wpa2-personal and version wpa-psk/wpa2-psk Encryption AES for all 3 bands.
TP link support had no other suggestions other than a RMA so that is in process but, i did see couple of posts the new equipment still had issues so i am looking for advice suggestions if you have been though this and how you resolved it.
really appreciate your help