Thanks everyone for responding. Here is the update, I got covid in the meantime and decided I will not call AGL or follow any of their useless "suggestions" since I was and still too tired to deal with such a frustrating experience again atm.So, without doing anything on my end for past several days, this morning I woke up and decided to check speed and voila it is measures 976Mbps directly from Eero. Back to my original speed.So much about changing cables, hook it to PC, reboot Eero, rebooting ...