Have you made any changes to your anti virus or network firewall recently? I have checked around and was unable to replicate the issue of disconnecting upon changing channels
Changing channels is not my computer problem okay? It's your server problem, and not only 1 day happen only
If it's a server issue, we would be seeing everyone else reporting it though It's difficult for me to assist you if you do not wish to participate in the troubleshooting as you are the one facing the issue and I am unable to replicate the issue on my end