Tense times for Will Smith‘s security team, thanks to an unscheduled and unwanted guest guards had to take down at Will’s home until cops could arrive … TMZ has learned.

Law enforcement sources tell us … L.A. County Sheriff’s Department deputies responded twice last Wednesday to the actor’s L.A.-area home — with the first call reporting a suspicious man lurking near Will’s gate, and asking for someone who doesn’t live there.

Getty

We’re told security demanded the man leave the property, and he disappeared before deputies arrived — but, he returned just a short time later, somehow gaining access to the grounds.

According to our sources, Will’s security stopped and detained the man before he reached the house … and, cops came and arrested 37-year-old Robert Ogden on a misdemeanor charge.

We’re told they couldn’t release the man without bail before seeing a judge because officers believed he’d return to the house yet again.

Will was not home at the time of the alleged incident.

Getty

It’s the second time this year a member of the Pinkett-Smith family’s dealt with unwanted visitors — remember, back in February cops say 2 men climbed onto Jada‘s balcony while she was home, and she actually scared off the intruders.

Last week’s incident was at a different house …. perhaps unsurprising, given Will and Jada live apart, which came to light after Jada announced they’d actually separated nearly a decade ago.