Connecting to remote sql server 2014 on windows 7 workgroup

I have a laptop (PC2) and a desktop (PC1) in a workgroup. PC1 is running SQL Server 2014 Developer and PC2 is running SQL Server Express 2014. Using SSMS, I have tried many different ways to connect to PC1 Sql Server, but always get error 18456. (See image)

I'm obviously new to SQL Server administration. The servers on both PCs are configured for both Windows and SQL Server Authentication. SQL Server browser service is running and enabled. The error log on ASUS-JHS-CM6850 (PC1, desktop) shows

"06/05/2015 14:42:25,Logon,Unknown,Login failed for user 'ASUS-JHS-CM6850\Guest'. Reason: Could not find a login matching the name provided. [CLIENT:] 06/05/2015 14:42:25,Logon,Unknown,Error: 18456 Severity: 14 State: 5."

I'm pretty sure I need to add logins or users to one or both servers, but I've been struggling with this for days now. I also don't know why it's logging in as Guest, nor have I found a way to change that.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ste5anSenior DeveloperCommented:
You need SQL Server authentication. Create a login under the main security node using SQL Server authentication.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
jhseymour113Author Commented:
I hoped someone could just confirm the problem area and you did. Connections are good now and I've even succeeded in creating the replication publisher (PC1) and replication subscriber (PC2). Learned a lot. Saved the scripts!! Thanks much.
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server

From novice to tech pro — start learning today.