Changed ISP’s wordpress – broken

Quick backstory.
Used ISP who didnt block or filter anything.
Bought domain name, and administer it through https://www.zonedit.com
Zonedit.com redirects my https://www.name.com to my home IP address. All worked perfectly.

PS: I tried to update the url/weblog urls to the most basic redirection, and get a “must enable referrers” error. I get this when trying to adjust anythign on my site in IE.
Switched ISPs. This one blocks port 80. So, i changed my server to port :8830. Reconfigured zonedit to point to there. MOST things worked out ok.

I can no longer post comments to blog posts. I click ‘submit’ and the screen browser goes to a white page, and nothing is posted.

Due to the blocking of port 80, ive had to do some re-direction to have my www work. Im assuming this is my problem. www2.mydomain.com is pointing to my IP address. I then have a forward of https://www.mydomain.com to www2.mydomain.com:8830.

Im assuming i need to change the two lines in my configuration for the blog url, and wordpress url, but am not sure if i should put in
https://www.mydomain.com
https://www.mydomain.com:8830
https://www2.mydomain.com:8830
or what. I dont want to change the addresses, as ive read some people have been locked out of their wordpress after making the change.

Please, help me out. What do i need to do to get my comments, and other such things to work again