time stamp epired EX7300 & EX6100v2

hello, i unplugged my Netgear EX7300 extender to go on vacation. when i came back and plugged it in my wife said it was no longer working? we had got it used a few years back and worked fine to get wifi outside to the she shed.

every log in attempt a window popped up and said " time stamp expired "

every factory reset said the same thing?

i get about halfway through the set up and it pops up.

i did almost make it to the end twice but said wifi not enabled and would not finish.

i pulled out another extender NetgearEX6100 ( 1 year newer ) that i have as a spare it it does the exact same thing?

i am on windows 10 with t-mobile Nokia 5G 21 gateway ( no WPS button ) i think?

i get 150 mbps solid all day long.

i tried setting up on Edge & Goggle chrome with the same time stamp issue?

i turned off the VPN and looked around in norton security but could not find anything preventing Netgear?

sometimes i get to the end of the setup but never connects?

so it feels like 2 issues.........

are these two extenders simply outdated or something?

any help would be appreciated.

thanks in advance