Corey Trager

I think this is a clue to the problem: https://blog.gigamon.com/2021/07/14/what-is-tls-1-2-and-why-should-you-still-care/ Your solution, adding that line, makes sense. You have BugTracker.NET source code - you can just add it yourself (but I'm not sure where). I'm currently not set up to really test things. If you figure out where to add it, can you let me know? I've been using an old cable modem with an admin website on it. The last time I tried to visit that website the browsers said they couldn't...

This is just from googling the error message: https://stackoverflow.com/questions/81991/a-potentially-dangerous-request-form-value-was-detected-from-the-client Sorry, I'm not planning on investigating or fixing this.

https://dba.stackexchange.com/questions/40844/after-moving-database-backup-restore-i-have-to-re-add-user https://www.mssqltips.com/sqlservertip/1590/understanding-and-dealing-with-orphaned-users-in-a-sql-server-database/

Same problem. I don't know how, but somehow you created the database badly. It has the tables and columns but not the extra stuff that automatically fills in dates, ids, etc.

There seems to be something wrong with how your database was created. Here is the code for creating the sessions table. Notice that the se_date field is automatically populated: create table sessions ( se_id char(37) constraint pk_sessions primary key not null, se_date datetime not null default(getdate()), se_user int not null ) I googled "getdate returns null" and read some posts, but I'm not convinced that getdate can ever return null. Double check that your database was created correctly.

I would google "503 service unavailable iis" which will probably give you a frustratingly high number of possible causes for you to rule out.

Sorry for the delayed response. These days I'm using Linux, so I can't quickly check it out.

The db is not a factor. Even if you had not created a database, you would at least have seen a login page saying no database. The "about.html" can be useful for just seeing if plain old HTML works. If not, maybe check whether you have a syntax error in Web.config? I dunno. if that works, then there's a "hello.aspx" which is a super simple page that doesn't even try to access the db. Please post whatever you learn.