Do any IT/computer jobs require travelling? What about a network administrator?

Sometimes required travelling to buy good computer components, moreover they provide in-house job. If they are offering travelling job, so you clear the things with the company. 

You can also work from home..... 🤔

 Many go to training seminars. Many others travel if they have users who are geographically separated.

At my job we have people across state, luckily we can connect to them remotely. Its saves on travel time. We can also use Zoom for a lot of face to face stuff.

Yes quite a lot do as many companies have more than one site so multiple offices need to be visited.

The person who fixes hardware generally has to travel.  That's usually a service technician, but on high-profile cases, it could be a lab engineer.  In a large company, a network admin may never see the hardware.  We had farms of servers in trailers.  The lights were turned off in the trailers, and once the door was closed, it was rarely necessary to go back in.  Everything was done remotely.

Network admins have to be where the equipment is. 

It varies according to the scope of the company.  I worked for the Navy.  We had a primary site but we had an alternate site that was our backup in case of natural disaster.  I was based in New Orleans but traveled to the alternate site for installation and for a few other special actions.  During hurricanes, I always went to the alternate site in case the primary went down (which it did, twice - several years apart).  I was a system admin but one of our network admins was along for the ride and in those two cases where we DID have to fail over, he did the network ops to re-broadcast our "new" IP address to all of the DNS machines that we used.  The database guys also sent a couple of admins in case we had to fail over and bring up the standby database machines.

The answer is that it depends on the company and/or position you have. I don't have much professional working experience in IT. However, I worked at a medium sized dried fruit company and most of the IT work was done at the company HQ. This company has 9 dryers throughout northern California and 1 in central CA so we would do their remote IT support as much as we could. I never had to travel to any of the locations, but one of the network guys did have to travel to them, similarly to how dewcoons mentioned.

I now work as an IT tech at a local school district and I work at 3 sites. I don't normally travel between schools (or the district office) unless I need to. So it really depends on where you work and what the company policies are.

Currently I am a system and network administrator for a large medical practice.  We have four locations, with the three smaller offices being between 30 minute and 90 minutes from the main office.  If there are issues at those remote offices, I may have to travel to them.

When I was supporting the automotive industry, I sometimes had to travel to different locations as part of projects.  Including spending time at a test facility in the northern regions of Michigan in mid-winter under five feet of snow (while the rest of my team was in Arizona), being locked in a facility near Detroit for a week in preparation for Y2K, and spending three months in Luxembourg as part of setting up a research facility there.

I worked with a company that set up computer systems for schools, and we were in a different school in a different state every week during the summers.

And I worked at companies with a single location so you never traveled anywhere. 

All depends on the company you work for.

yes

lots do

hope that helps