Can't create account
I had that problem, after several attempts with different passwords it finally worked when I made the first character uppercase.
If she tries to use a “common” password, it’s auto-rejected.
A number of passwords have been blacklisted for security reasons. She should be making a completely unique passward never used at any other site.
If she absolutely can’t create a password she should contact support using the support tab at the top of the page then go to ‘ask a question’ and make out a ticket. Anything she doesn’t know she should put in something like unknown or N/A. Support can also be contacted at Support@GuildWars2.com.
(edited by Astral Projections.7320)
If she is having trouble, and is trying to make a password that she can remember, then mix in upper and lower case letters all throughout the password. Most passwords these days are case-sensitive for each individual letter, so this is a good way to make a stronger password, as well as by adding in numbers throughout.
As mentioned, there is a blacklist of passwords that have been known to have been used to compromise peoples accounts, and ANet won’t allow these to be used again. The 2-Step mobile verification is a good way to add security to your account as well.
Also, if your PC is secure, and you have separate user profiles, the game client on each user profile can remember the passwords for an automatic log in. This would only be recommended if your PC is VERY secure though. It has been known, for younger/peeved family members to log on to peoples accounts and play havoc!
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Lvl 80 Guardian(x2), Ranger, Warrior, Elementalist, Engineer, Necromancer, Mesmer, Thief.