Why are our SharePoint sites are preventing user access sporatically?

Myself included, who is a farm admin, has run into this issue. I am able to edit list settings, entries, sites, etc. most of the time. Then from time to time I will be basically locked out and have no access to edit anything for a minute or two, then my access returns. Has anyone else experienced something similar? I am curious if the Web Page Security Validation has anything to do with the issue.
Thank you
dserotkoAsked:
Who is Participating?

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

x
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.

dserotkoAuthor Commented:
I am curious if anyone knows of an issue with Windows Integrated Authentication and SharePoint?
 Advanced IE Settings
dserotkoAuthor Commented:
Better pic:
 IE 2
dserotkoAuthor Commented:
This ended up being an external backup that was running hourly. It made everything read only while it ran.

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
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 SharePoint

From novice to tech pro — start learning today.