- Software and digital services
- Web browsers
ERR_ADDRESS_UNREACHABLE
ERR_ADDRESS_UNREACHABLE in Google Chrome: no route to the address
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
Chrome could not reach the site's IP address: usually there is no route to that host or network. Check whether other sites load, try mobile data, and restart the modem and router if your network is failing.
Safety first
Stop and check this first
- If the site is only reachable from your company network, ask its administrator before changing network settings on your device.
Safe checks you can perform
- Other sites from your network
- The site on mobile data
- Modem, router and provider
- Routes to the server's network
Leave these tasks to a qualified professional
- Do not attempt this professional task: Trace the route to the server
- Do not attempt this professional task: Routing check by the provider
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Trace the route to the server
What they doThe network administrator traces the path to the IP from several networks and finds the hop where it breaks.
They must show youthe traces with the hop where it is lost.
In writingwhich network had the broken route and what was fixed.
Routing check by the provider
What they doThe internet service provider checks whether its network routes to that address.
They must show youtheir test result towards that IP.
In writingticket number and resolution.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Other sites from your network
- Who:
- you.
- How:
- open several well-known sites in another tab.
- Result that matters:
- whether the failure affects only this site or all of them.
- If none load:
- it points to your connection; check Wi-Fi or cable and restart the modem and router.
- If the others load:
- rule out a general outage of your connection and test this site outside your network.
- Evidence to keep:
- sites tried and time.
Evidence: Google Chrome Help - Fix connection and loading errors in Chrome
The site on mobile data
- Who:
- you.
- How:
- turn off your phone's Wi-Fi and open the address on mobile data.
- Result that matters:
- whether a route exists from another network.
- If it opens on mobile data:
- it confirms the route fails in your network or provider.
- If it does not open either:
- it indicates the site's network is unreachable; tell the operator.
- Evidence to keep:
- a screenshot of the result on each network with the time.
Evidence: Chromium source - net/base/net_error_list.h (network error list)
Modem, router and provider
- Who:
- you.
- How:
- restart the modem and router and test again; if it persists, call your internet service provider.
- Result that matters:
- whether the site has a route again after the restart.
- If it opens again:
- the router was the source.
- If it still fails only on your network:
- ask the provider to check routing towards that address.
- Evidence to keep:
- restart and failure times and the provider's ticket number.
Evidence: Google Chrome Help - Fix connection and loading errors in Chrome
Routes to the server's network
- Who:
- the site's network administrator or the provider.
- How:
- trace the route to the server's IP from several outside networks and review the routing tables and link status.
- Result that matters:
- at which hop the route is lost.
- If it is lost inside the site's network:
- the fix is theirs.
- If it is lost in a provider's network:
- it indicates that provider must fix it.
- Evidence to keep:
- trace output with time and source network.
Only the network administrator of the site or the provider. Changing routes outside a procedure can cut service for others; if it is not your network, do not do it.
Evidence: Chromium source - net/base/net_error_list.h (network error list)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Software and digital services
- Brand
- Google Chrome
- Product type
- Web browsers
Known code variants
- ERR_ADDRESS_UNREACHABLE
- ERR_ADDRESS_UNREACHABLE (-109)
- ERR_ADDRESS_UNREACHABLE Chrome
- net::ERR_ADDRESS_UNREACHABLE
What it means
In Chromium's error list, ERR_ADDRESS_UNREACHABLE (-109) means the IP address is unreachable, which usually means there is no route to the specified host or network. It is a connection error that happens before any data is exchanged with the server. The missing route can be in your local network, your provider's network or the site's network; the code does not say which, so you need to test from another network.
Warnings and stop conditions
- Loweditorial warning
If the site is only reachable from your company network, ask its administrator before changing network settings on your device.
Evidence: Google Chrome Help - Fix connection and loading errors in Chrome
Symptoms and causes
Probable causes · in order
- Broken route in your networkPossible
If the site opens on mobile data but not on your Wi-Fi, the missing route is in your router or provider.
Evidence: Chromium source - net/base/net_error_list.h (network error list) · Google Chrome Help - Fix connection and loading errors in Chrome
- Broken route in the site's networkPossible
If the site is unreachable from every network, the problem is in the network hosting the server.
Evidence: Chromium source - net/base/net_error_list.h (network error list)
Virtual technician
Does ERR_ADDRESS_UNREACHABLE still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Chromium source - net/base/net_error_list.h (network error list)
The Chromium Authors · 2026 · official_doc
- 2
Google Chrome Help - Fix connection and loading errors in Chrome
Google · 2026 · official_doc
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