You need to use the exact same information in Stalker Client. If there are issues, you can try doing an IPTV Reset. However, you only get 3 IPTV Resets in 24 hours, so you are liable to be running close. If you reach the limit of tries and do not have anything working, you can be frozen out for 24 hours. Technically, though, if you use the exact same information, things should work without issue. Make sure there's no mistyping.