Subisu FUP Policy Explained: What Happens After You Hit the Data Limit?

Your Subisu internet was flying yesterday — Netflix loaded instantly, downloads finished in seconds. Today, everything crawls, and you haven't changed a single setting. If this sounds familiar, you've almost certainly run into the Subisu FUP policy in Nepal, one of the most misunderstood parts of every "unlimited" broadband plan in the country. This guide explains exactly what FUP is, what triggers it, how much your speed actually drops, and what you can do about it.

What Is Subisu's Fair Usage Policy (FUP)?

Fair Usage Policy is a bandwidth management rule applied by virtually every internet service provider in Nepal — including Subisu, WorldLink, and Vianet — on their "unlimited" home broadband plans. The idea is straightforward: since network capacity is shared among many customers, ISPs cap how much data you can use at full speed before reducing your bandwidth, so a small number of extremely heavy users don't degrade the experience for everyone else on the same network.

In Subisu's own words, once a customer reaches their fair usage threshold, their plan speed is rationalized by up to 80% to 90% for the remainder of that monthly billing cycle — meaning your internet doesn't get cut off entirely, but it slows down dramatically until your cycle resets.

Subisu Data Limit: How Much Can You Actually Use?

Unlike some competitors, Subisu doesn't publicly publish one fixed bandwidth threshold number that applies to every customer. Instead, the company structures its Subisu data limit around the speed tier you've subscribed to — higher-speed packages come with a proportionally higher FUP data allowance, while lower-speed packages have a smaller threshold before throttling kicks in. In Subisu's own terms, packages with higher subscribed speed carry a higher FUP value, and lower-speed packages carry a correspondingly lower one.

This is different from a flat "everyone gets 500GB" rule — practically, it means a 50 Mbps subscriber can use considerably more data at full speed before triggering FUP than a 5 Mbps or 10 Mbps subscriber can.

Subisu Speed Throttle: What Actually Happens to Your Connection

Once you cross your plan's FUP threshold, here's the practical reality of the Subisu speed throttle:

• Speed drops by roughly 80–90% from your subscribed plan speed — so if you're on a 25 Mbps plan, you could realistically be looking at something closer to 2.5–5 Mbps for the rest of the cycle.
• The throttle applies for the remainder of the monthly billing cycle — there's no partial-day or partial-week reduction; once triggered, reduced speed continues until the cycle resets.
• Your internet doesn't disconnect — you can still browse, message, and stream at lower quality; you simply won't get your originally subscribed speed back until next month.
• Speed automatically restores to normal at the start of the next month, with no action required on your part.

Why Is My Subisu Internet Slow After the Limit? Common Symptoms

If you're searching for why your Subisu internet is slow after the limit, here's what that typically looks like in daily use:

• YouTube or Netflix suddenly buffering or dropping to lower resolution automatically
• Video calls on Zoom or Google Meet becoming pixelated or freezing
• Web pages and apps taking noticeably longer to load than usual
• Large downloads or game updates that used to finish in minutes now taking hours
• Multiple devices on the same Wi-Fi competing more visibly for limited bandwidth

If several of these symptoms appeared suddenly partway through the month — rather than gradually — FUP throttling is the most likely explanation, especially if your household has been streaming, gaming, or downloading more heavily than usual.

How to Check If FUP Has Been Applied to Your Account

1. Log in to Subisu's official client/self-care portal using your subscriber credentials.
2. Navigate to your account or usage dashboard.
3. Look for a status indicator showing whether FUP has been applied to your package at that point in time.
4. If you're unable to access the portal or the information isn't clear, contact Subisu customer support directly to confirm your current FUP status.

This self-check is the most reliable way to confirm whether your slow speeds are actually due to FUP, rather than a separate network or router issue.

What Can You Do If You've Hit Your FUP Limit?

• Top up additional data: Subisu allows customers to purchase extra data at a reasonable price if they need more high-speed usage within the same month, rather than waiting out the throttle.
• Upgrade to a higher-speed package: Since FUP thresholds scale with your subscribed speed, moving to a higher tier generally raises your fair usage allowance as well, reducing how often you hit the limit.
• Wait for the monthly reset: If extra data or an upgrade isn't necessary, your speed will automatically restore to normal on the first of the next English calendar month.
• Monitor usage proactively: Checking your usage dashboard partway through the month can help you pace heavy downloads or streaming before you hit the threshold unexpectedly.

What Happens If You Keep Using Heavily After Throttling?

Subisu's policy states that if a customer continues to significantly exceed fair usage even at the already-reduced, throttled bandwidth, the company may take further action — which can include notifying the customer to reduce usage, or in more serious or repeated cases, suspending or terminating the service, with or without prior notice. In practice, this escalation is reserved for extreme, sustained over-usage rather than typical heavy household streaming, but it's worth being aware that the throttled speed isn't necessarily a permanent safety net against further restriction.

Subisu FUP vs Other Major Nepali ISPs

It helps to see Subisu's approach in context. Vianet, for example, uses a tiered three-level throttling system — speed drops to roughly 60% at the first threshold, 30% at the second, and down to about 10% (or 5 Mbps, whichever is lower) at the third level, with usage measured across the English calendar month. WorldLink has historically applied FUP primarily during peak hours (around 8 PM to 11 PM), switching to a fallback speed during that window rather than throttling around the clock. Subisu's model is comparatively simpler: a single threshold per plan, after which speed drops by roughly 80–90% for the rest of the cycle — a steeper one-time drop rather than a multi-stage descent.

Are There Any Subisu Plans Without FUP?

Yes — Subisu's SME (business) solutions are explicitly marketed as free of Fair Usage Policy restrictions, allowing subscribers to use their connection without the same throttling rules applied to residential plans. This makes sense given the use case: SME plans are designed for offices, startups, and work-from-home setups where consistent, unthrottled bandwidth throughout the month genuinely matters for business operations, and they're billed on a quarterly basis rather than the standard residential monthly cycle.

Frequently Asked Questions

How much does Subisu throttle speed after FUP?

According to Subisu's official policy, speed is rationalized by up to 80% to 90% for the remainder of the monthly billing cycle once the fair usage threshold is reached.

When does Subisu's FUP reset?

Your speed automatically returns to its normal subscribed level at the start of the next monthly billing cycle, with no action required from you.

Can I avoid Subisu's FUP entirely?

For residential plans, FUP applies by design once you exceed your plan's threshold. The main ways to avoid hitting it are topping up extra data when needed, upgrading to a higher-speed package with a larger threshold, or considering an SME plan if your usage qualifies and you need consistently unthrottled bandwidth.

How do I know my exact Subisu data limit?

Subisu doesn't publish one universal number since the threshold scales with your subscribed speed tier. Check your client portal or contact customer support directly to find the exact FUP threshold for your specific package.

Can I top up data instead of waiting for the throttle to lift?

Yes, Subisu allows customers to purchase additional data at a reasonable price within the same billing cycle if they need to continue at full speed before the next monthly reset.