A single-site company can run on informal IT for a surprisingly long time. Everyone is in the same building. The person who knows where things are is down the hall. Problems are solved by walking over.
The second location removes every one of those assumptions at once, and it usually happens during a period when leadership attention is elsewhere.
1. Knowledge stops being ambient
At one site, nobody needs documentation because the knowledge lives in a few heads and those heads are reachable. At two sites, the new location invents its own conventions — different naming, different vendors, a different way of getting a laptop set up.
Six months later there are two IT environments with one budget, and no one intended it.
2. Accounts and access split apart
The fastest way to get the second office working is to create accounts locally, add a shared login for the front desk, and sort it out later. Later never has a scheduled date.
Decide before the location opens that accounts stay central: one list of users, one rule for the second login step, no shared logins at individual sites. This is the single decision that saves the most cleanup.
3. Nobody owns the circuit
The new site's internet connection is typically ordered by whoever is handling the buildout — a general contractor, a broker, an operations manager. The account is in their name, the support number is in their email, and when it fails at 7am nobody in your company can open a ticket.
Keep circuit ownership in the business, in a shared account, with the contract term and renewal date recorded somewhere a second person can find.
4. Onboarding becomes visibly late
At one site, a new hire without a laptop is embarrassing but fixable within the hour. At a remote site, the same failure means a person sits without tools for two days and the manager loses confidence in the process.
Onboarding needs a lead time, a checklist by role, and a named owner before the second location, not after the first complaint.
A sequence that works
Roughly eight weeks before opening: get every account into one place and require a second login step. Six weeks: order connectivity in the company's name and record it. Four weeks: standardize the hardware build and the onboarding checklist. Two weeks: document the site — network layout, vendors, access, keys and codes. Opening week: verify remote support works before you need it.
None of this is difficult. It is simply invisible work that has no owner unless someone assigns it.