These aren't general problems or we'd have had many, many posts about the issues.
I don't understand your reference to 'obsolete software' stopping you logging off. Do you mean depreciated code or do you mean the fact that some certificates are out of date. In both cases, Chrome 68 does not stop me logging off.
I'm running the game on a fairly old machine with only 4Gb of memory and running Windows 10 (32-bit) and the game doesn't present with the same issues you describe.
Can you be more detailed and also state worlds where you cannot attack?
