Cant connect to servers after updating OBS from a very old version.

[Roiyarukyatto]

After updating OBS (roughly 2 versions behind from current) from a very old version it keeps failing to connect.
It first prompts "Could not access the specified channel or stream key. Please double-check your stream key. If it is correct, there may be a problem connecting to the server."
After that, this is what happens when I keep pressing the "Start stream" button.
(Attempts are when i press the "start streaming" button)
Attempt 1 ) I copy pasted the stream key as is, no space or anything.
Attempt 2 ) Failed to connect to server (meaning stream key works fine)
Attempt 3 ) Stream starts, but is disconnecting and reconnecting

 

[Roiyarukyatto]

After updating OBS (roughly 2 versions behind from current) from a very old version it keeps failing to connect.
It first prompts "Could not access the specified channel or stream key. Please double-check your stream key. If it is correct, there may be a problem connecting to the server."
After that, this is what happens when I keep pressing the "Start stream" button.
(Attempts are when i press the "start streaming" button)
Attempt 1 ) I copy pasted the stream key as is, no space or anything.
Attempt 2 ) Failed to connect to server (meaning stream key works fine)
Attempt 3 ) Stream starts, but is disconnecting and reconnecting
View attachment 105503

Attempt 1 wasn't written clearly,
Attempt 1 causes the first error about "could not access the specified channel... etc.." part. I copy pasted the stream key as is without space or anything and this is the error that showed up first.