What is Cisco doing? OMG. two firmware released that are unusable.
I upgraded from 1.0.03.22 to 18.104.22.168.26, reset all settings to factory default and after a reboot I could still access the internet. Once I start to configure my settings manually and add firewall Access Rules then the problems start. Whenever I add a rule then internet access is blocked and my router becomes useless. The only way to solve this is to remove the access rule (or make it inactive). So, 1.0.03.24 was a useless firmware version and now 22.214.171.124.26 as well. Releasing an firmware update for a router which makes the firewall useless is quiet amateurish!
Please Cisco SOLVE this issue a.s.a.p. as this is a core functionality of the router with firewall!!!
Update: I had opened up a TAC case with Cisco about this. After trying a bunch of things, collecting logs, different upgrade procedures, etc. etc. My case was passed up the line to a 2nd line engineer. After confirming a few things, I was informed that a new firmware will be coming out soon - perhaps by the end of May 2022. The new firmware should provide the stability of 126.96.36.199, I was told.