AT&T BGW320 support

#1 Confirm you have a BGW320-500 or BGW320-505

The BGW320 ships as two variants — BGW320-500 and BGW320-505 — and AT&T’s light-status guide is written for that family (S06). The label on the gateway carries the variant; quote it when contacting support. What this page deliberately does not cover: the BGW210 (different light guide and user manual) and the All-Fi Hub BGW620 (AT&T Internet Air’s own device with its own light PDF). If your label reads either of those, use their support pages instead — the BGW320’s Service/WPS light logic does not transfer.

The BGW320 is a gateway: fiber or broadband comes in one side, and the Service light on the front is the device’s own status display. AT&T’s guide defines each front-panel light separately and expects you to read the Service and WPS lights together (S06) — that pairing is the core skill for every state on this page.

#2 The official documentation, in one place

#3 Restarting the BGW320 — the documented 20-second unplug

AT&T’s restart article (S07) is unusually specific, which makes it easy to follow exactly:

1. Unplug the power cord.
2. Wait 20 seconds.
3. Plug it back in.

The same article warns that devices in the home lose internet for up to five minutes during the restart — so do not judge the result by the first minute of Service-light activity. On this gateway, startup shows as the Service light blinking white (“starting”) before settling to solid white (S06, per this site’s chart).

#4 The reset hold: an AT&T self-conflict, handled honestly

This is the one place this page refuses to give you a number, and the reason matters. AT&T’s own documents disagree on how long the BGW320’s reset button must be held for a factory reset: the light-status PDF and the restart/reset article give different durations (S06 vs S07). Because a factory reset erases your Wi-Fi name, password and every customized setting, acting on a guessed hold time is a real risk — so this site, matching its editorial policy, publishes no reset hold for the BGW320.

What to do instead:

• Default to the 20-second unplug — it is the documented, non-destructive restart (S07).
• If a reset is genuinely needed (moved the gateway to a new account, support-directed), let AT&T support give you the hold for your specific unit on the call, and note it down. The restart versus factory reset guide explains why resets are a support-directed action, not a self-service default.

#5 Reading the lights: the fast/slow fork

The BGW320’s blinking-red state is two different problems, and AT&T’s guide splits it by cadence (S06; the blinking red guide walks both):

• Service light fast-blinking red — a network service issue: check for an outage (Smart Home Manager or myAT&T), then one 20-second restart.
• Service light slow-blinking red — no broadband connection: check the cable into the gateway first, then the outage, then the restart.
• Solid red with WPS off — the guide’s overheating indication: power down, clear airflow, let it cool (S06).
• WPS light red — a pairing issue with the device you are connecting, not a line fault.

The full state table, with the companion-light rules, is in the BGW320 light chart.

#6 Speed tests, outage checks and the app

Smart Home Manager is the BGW320’s control surface, and AT&T documents two tests on its speed-test page (S49): the device test at att.com/support/speedtest (device to internet, over cellular, wired or Wi-Fi) and the gateway equipment test — the speed between the Gateway and the AT&T network — in Smart Home Manager. AT&T’s optimization guide calls the gateway-side speed “pretty consistent” and points device-side variance at the usual factors (S50). The AT&T speed test guide covers both flows and the ping/jitter readings.

For outages, AT&T’s named tools are Smart Home Manager or myAT&T on a mobile device (S06, cited in the outage guide). Check there before any restart — an area outage makes every light state and speed test on this page meaningless until service returns.

#7 Getting help

When the documented steps do not resolve it, AT&T’s support site (att.com/support) is the entry point for chat and the support articles, and the speed-test page’s own help options route through the app (S49). Contact support with the gateway variant (BGW320-500 or -505), the exact Service/WPS light state, and — for speed issues — the Smart Home Manager gateway-test result. That trio matches what AT&T’s own documents are written against.

#8 Common BGW320 questions

Q: Why won’t this page give me the reset hold time? Because AT&T’s own two documents disagree on it (S06 vs S07), and a reset erases your settings. The 20-second unplug is the documented safe restart; get the reset hold from AT&T support directly if one is ever needed.

Q: My Service light is solid red and the WPS light is off. That is the guide’s overheating combination (S06). Power down, clear the airflow, let it cool, and relocate the gateway out of enclosed spaces before powering back. Recurrence in open air is a support case.

Q: The internet dropped right after a storm. Restart or wait? Check for an outage first (Smart Home Manager or myAT&T) — a fast-blinking red Service light is the guide’s network-service state, and during an area outage a restart changes nothing (S06). If no outage shows, one 20-second restart, then the cable check.

Q: My speed is low but the gateway test says full speed. That is the documented split: gateway side consistent, device side variable (S49, S50). Work the device-side factors — wired test, idle the other devices, check device age — per the AT&T speed test guide.

#9 Related pages

• BGW320 light meanings — the complete Service/WPS table from AT&T’s PDF.
• BGW320 blinking red — the fast/slow fork in detail.
• AT&T speed test — both official tests and the jitter/ping readings.
• BGW210 support — the older gateway’s own support route.
• Restart vs factory reset — why the unplug wins here.