--- title: Turning on my router's guest network solved a problem... description: A weeks-long problem of video calls dropping and streams going blurry turned out to be caused by a forgotten QoS bandwidth-priority rule that gave scheduled... canonical: https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Turning on my router's guest network solved a problem I'd spent weeks troubleshooting | daily.dev og:description: A weeks-long problem of video calls dropping and streams going blurry turned out to be caused by a forgotten QoS bandwidth-priority rule that gave scheduled... og:url: https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp og:image: https://api.daily.dev/og/posts/mWTuiTbnp.png og:image:alt: Turning on my router's guest network solved a problem I'd spent weeks troubleshooting og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Turning on my router's guest network solved a problem I'd spent weeks troubleshooting **[XDA Developers](https://daily.dev/sources/xda-developers)** · 5 min read · 0 upvotes · 0 comments ## Summary A weeks-long problem of video calls dropping and streams going blurry turned out to be caused by a forgotten QoS bandwidth-priority rule that gave scheduled NAS backups top priority over real-time traffic on the main network. Toggling on a previously unused guest network exposed the issue: while the main network stuttered, the guest network (unaffected by the per-device priority rule) stayed stable during simultaneous speed and video call tests, ruling out ISP throttling or congestion. Moving the backup window later and lowering its priority fixed the slowdowns, and the author now recommends keeping a guest network active as a quick diagnostic baseline against ISP problems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### How can I tell if my home Wi-Fi slowdowns are caused by my ISP or my own router settings? Turn on your router's guest network and run the same speed test or video call simultaneously on both the main and guest networks, since they share the same internet connection. If only the main network struggles while the guest network stays stable, the problem is a local router configuration, not ISP throttling or congestion. _Anyone chasing intermittent Wi-Fi drops can compare troubleshooting approaches like this on daily.dev._ ### Why would my video calls and streaming quality drop only on my main Wi-Fi network but not on a guest network? A forgotten bandwidth-prioritization rule set up for scheduled overnight backups can overlap with normal usage hours and starve other devices of bandwidth on the main network, since guest networks are excluded from per-device priority rules. Moving the backup window later and lowering its priority resolves the conflict within minutes. _Developers running home labs with scheduled backups can compare QoS pitfalls like this on daily.dev._ ## Similar posts on daily.dev - [I deliberately gave up some of my internet speed, and every video call in the house got better](https://daily.dev/posts/i-deliberately-gave-up-some-of-my-internet-speed-and-every-video-call-in-the-house-got-better-ygwqarera) · XDA Developers · 0 upvotes · 0 comments - [Your guest network is probably faster than your main network, and it's because you optimized it to death](https://daily.dev/posts/your-guest-network-is-probably-faster-than-your-main-network-and-it-s-because-you-optimized-it-to-d-zckoxcqk5) · XDA Developers · 0 upvotes · 0 comments - [Changing this one router setting solved all of my TV's buffering issues](https://daily.dev/posts/changing-this-one-router-setting-solved-all-of-my-tv-s-buffering-issues-og0lmo7ff) · XDA Developers · 0 upvotes · 0 comments - [My speed tests were perfect, but my connection still felt awful, and one queueing setting explained it all](https://daily.dev/posts/my-speed-tests-were-perfect-but-my-connection-still-felt-awful-and-one-queueing-setting-explained--5rykmre6i) · XDA Developers · 0 upvotes · 0 comments - [Your router's QoS settings are hurting more than helping, and the fix takes 30 seconds](https://daily.dev/posts/your-router-s-qos-settings-are-hurting-more-than-helping-and-the-fix-takes-30-seconds-gnmyqqeha) · XDA Developers · 1 upvotes · 0 comments --- Tags: [#networking](https://daily.dev/tags/networking) [View this post on daily.dev](https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Turning on my router's guest network solved a problem I'd spent weeks troubleshooting","url":"https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp"},"datePublished":"2026-09-01T18:31:36.661Z","dateModified":"2026-09-13T19:34:42.017Z","description":"A weeks-long problem of video calls dropping and streams going blurry turned out to be caused by a forgotten QoS bandwidth-priority rule that gave scheduled...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/37558df780316c9102e1172d39c07027?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/37558df780316c9102e1172d39c07027?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"XDA Developers","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"XDA Developers","logo":"https://media.daily.dev/image/upload/s--kCg6yyAP--/f_auto,q_auto/v1774964407/logos/xda-developers?_a=BAMAMiWQ0","url":"https://daily.dev/sources/xda-developers"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"networking","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"XDA Developers","item":"https://daily.dev/sources/xda-developers"},{"@type":"ListItem","position":3,"name":"Turning on my router's guest network solved a problem I'd spent weeks troubleshooting"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/turning-on-my-router-s-guest-network-solved-a-problem-i-d-spent-weeks-troubleshooting-mwtuitbnp#faq","mainEntity":[{"@type":"Question","name":"How can I tell if my home Wi-Fi slowdowns are caused by my ISP or my own router settings?","acceptedAnswer":{"@type":"Answer","text":"Turn on your router's guest network and run the same speed test or video call simultaneously on both the main and guest networks, since they share the same internet connection. 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