yes it goes to the ue website to download uesrv.txt which contains host and port, so let it do it when it requests it (it works through http so it is port 80
www.netwu.com, the ue website is
www.netwu.com/ue), it also stores those coordinates in its registry, so unless i changed something in the configuration here it won't go and download it again. i could also to add an option to update configuraton from a file i'm not sure though it makes sense.
right now the search server is the same as in the previous version (the port you mentioned).
if i change the configuration the port may change, but changes in configuration will be rare and commonly associated with increasing retention, the new scheme is able to provide unlimited retention without software upgrade but in practical terms probably there will be only one or two changes in the future depending on how things are going on.
ue uses the website only in two ways now: first, check for updates - reading
http://www.netwu.com/version_reg.htm if check for updates is enabled in properties->general->check for updates and since v1.9.7 reading the search service configuration, it is the only purpose, so should be no problem to allow this.
if you want exact details about access point especially if configuration will change just contact me, but the access will basically remain static.