How to videos →

Rundocs › Hardware

Connectivity troubleshooting

Last updated 2026-05-10

When Rundoo won't load, disconnects you mid-sale, or starts feeling sluggish, it's almost always a network or browser issue — not Rundoo itself. This Rundoc walks through the quick checks you can run at the register, then answers the connectivity questions we hear most often.

Rundoo runs entirely in your browser and talks to our servers constantly — every sale, every cart change, every lookup. That means a weak wifi signal or a tab that's been open for three days can masquerade as "Rundoo is broken." There's no single UI surface for connectivity — if something feels off, the Support button in the top-right of the header (next to the search button) is the fastest way to reach us while you work through the ladders below.

Rundoo won't load at all

You open Rundoo and get a blank page, a spinner that never finishes, or a "can't reach this site" message. Work the ladder in order.

  1. Check your wifi or internet. Look at the wifi icon on your computer — is it connected? Open a different site like google.com in a new tab. If that doesn't load either, the problem is your internet, not Rundoo. Restart your router (unplug it for 30 seconds, plug it back in, wait two minutes for it to come back up). If you're on store wifi and other devices are also offline, call your internet provider.

  2. Refresh the tab. Hard refresh with Cmd+Shift+R on Mac or Ctrl+Shift+R on Windows — that clears a stale page out of the browser's memory and reloads fresh. A regular refresh is fine too, but hard refresh is more thorough.

  3. Try a new tab. Close the Rundoo tab, open a brand-new one, and go to app.rundoo.app. Tabs that have been open for a long time can get into weird states that a fresh tab fixes in one step.

  4. Try a different browser. If you normally use Chrome, open Safari or Edge and sign in there. If Rundoo loads in the other browser, the issue is with your usual browser's cache or an extension — clearing your cache usually does it.

  5. Check if Rundoo itself is down. See the "Is Rundoo down or is it just me?" section below. If our status page shows an incident, you're not doing anything wrong — we're on it.

I got disconnected mid-sale

You were ringing up a customer and the page locked up, showed a banner, or went blank. Breathe — you probably didn't lose the sale.

  1. Don't close the tab yet. If the cart is still on screen, your items are still there in the browser's memory. Wait 10–15 seconds to see if the connection recovers on its own; Rundoo will reconnect and sync the cart when it does.

  2. Check the wifi signal. Glance at the wifi icon on your computer. If it's dropped to one bar or disconnected entirely, that's your answer — the sale didn't fail, your network did. Move closer to the router if you can, or switch to a wired connection at the counter.

  3. Refresh the page. If the connection is back but the page still feels stuck, refresh the tab. Any sale you hadn't submitted yet is gone — you'll need to re-ring it. Any sale you'd already tapped Sale on made it to our servers before the disconnect, and you'll find it in the POS > Transactions > Completed tab.

  4. If the customer is still waiting, save what you can as a draft the next time the page comes back (tap Save draft on the action cluster), so you don't lose the cart if it disconnects again. Pull the draft back up from the POS > Transactions > Drafts tab to finish the sale.

  5. If disconnects keep happening, your wifi is the culprit — call your IT person or internet provider. One blip is normal; three in an hour is a signal problem worth fixing.

Sale is saving slowly

The progress spinner on Sale takes a long time, or the page feels laggy when you're adding products to the cart. This is almost always a network speed issue, not Rundoo.

  1. Run a speed test. Go to fast.com or speedtest.net in a new tab. Rundoo runs comfortably on anything above 5 Mbps down / 1 Mbps up. If you're seeing less than that, your connection is the bottleneck.

  2. See what else is on the wifi. If someone's streaming video in the back office or a big download is running, that eats your bandwidth. Pausing competing traffic is usually an immediate fix.

  3. Close extra browser tabs. Each open tab uses memory. If you've got fifty tabs open, the browser itself slows down — not Rundoo. Close what you're not using and the whole machine gets faster.

  4. Restart the browser. Quit the browser entirely (not just close the window — fully quit from the menu) and reopen it. This clears out memory that builds up over long sessions.

  5. Restart the computer. If the slowness spans every site, not just Rundoo, a reboot clears the slate. Do it at the start of the day, not mid-rush.

Card reader or peripheral lost network

Your Stripe card reader, receipt printer, or label printer has stopped talking to Rundoo.

  1. Card reader — wifi vs USB. The Stripe Reader S710 and similar readers connect over wifi; USB-tethered readers (BBPOS Chipper 2X BT M2) connect through the computer. Wifi readers show a wifi icon on their screen — if it's missing or red, the reader dropped off the network. Check the same wifi the reader uses and confirm it's still up.

  2. Reconnect the reader. On a wifi reader, the settings menu has a Wifi section — reconnect to your store network. If the reader can't see the network at all, its wifi radio may have fallen asleep; restart the reader by holding the power button for 5 seconds.

  3. Restart the card reader. When in doubt, turn it off and on again. Hold the power button, wait for it to fully shut down, power it back up, and let it reconnect. This clears most "reader is unresponsive" cases in under a minute.

  4. Printers go through the browser, not Rundoo. If your receipt or label printer has stopped printing, it's a browser or hardware issue — see Printer troubleshooting for the full ladder.

  5. If a charge is stuck, don't re-swipe the card. Wait for the current attempt to clear or fail, then retry — double charging a customer is much harder to unwind than waiting 30 seconds. If the charge shows as pending for more than a minute or two, call Rundoo Support before trying again. For the full walkthrough, see Card reader troubleshooting.

Is Rundoo down or is it just me?

Sometimes it's actually us. Here's how to tell the difference.

  1. Try Rundoo on your phone. If you can reach app.rundoo.app on your phone's cellular data (turn off wifi first, so you're really on cell), Rundoo is up and the issue is your store's network or computer.

  2. Ask a coworker. If every station in the store is seeing the same thing at the same time, it's either your store's internet or Rundoo itself. If only your station has the problem, it's local.

  3. Check our status. Call Rundoo Support at (650) 334-3205 — if there's an incident in progress, the team will tell you right away and give you a sense of when we expect it resolved. You don't need to describe the whole thing; just say "is Rundoo down?" and we'll know. See Rundoo Support for every way to reach us.

  4. If we're down, there's nothing for you to fix. Keep the cart tab open if you've got a sale in progress — once we're back, the page will recover. Ring on paper if you need to keep the line moving, and add the sales back in once you're online.

FAQs

Where is the offline mode?

Rundoo does not have an offline mode, and we don't plan to build one. An offline version would be a degraded version — no full history, no fast search, no live vendor integrations — and sync'ing data back up without duplicates is error-prone. On top of that, offline software has to be installed and maintained, which means versions, updates, and headaches for both you and us. Rundoo is web-based on purpose: open the browser, and you're on the latest build.

The bigger reason we haven't built one: the lack of an offline mode has not been an issue for our live clients. Cellular signal is far more reliable than wifi — during Hurricanes Helene and Milton in 2024, a number of our clients lost wifi, but no one lost cellular. When your internet drops, you have three good options:

  1. Tether to your phone's hotspot — easiest and often free. Apple's guide is here, Android's is here. Check your data plan first; some plans charge extra for hotspot use.

  2. Buy a dedicated mobile hotspot (~$50). We use a Moxxee Mobile Hotspot from Best Buy at our Redwood City office. Prepaid, no monthly fee — you forget it's there until the internet drops, and then everyone hops onto it.

  3. Buy 5G internet (~$60/mo). T-Mobile's small-business 5G internet plan runs entirely off 5G rather than wired. A couple of our clients use it and like it — worth a look if you're shopping for new wifi anyway.

If you want help picking between these, reach out — email support@rundoo.ai, call (650) 334-3205, or message us through the app.