Slow reports and timeouts
Pages that spin, visuals that lag, and queries that time out. We profile the report, then tune the DAX and the data model — the two places most Power BI slowness actually lives.
Power BI Flex Support · Fix it now
Power BI Troubleshooting Consultant for Slow, Broken Reports
When a dashboard times out, a refresh fails overnight, or the numbers stop matching, you need a senior engineer to find the real cause and fix it — not a junior guessing. We diagnose, prioritize, and repair Power BI problems on prepaid hours that never expire.
Every hour is drawn from a prepaid Flex block, scoped per fix, with hours deducted only for work you approve. See how the prepaid Flex hours model works.
Representative dashboard — sample data
Remedial, not theoretical
Diagnose the cause, then fix it
Is a dashboard timing out, a refresh failing overnight, or row-level security leaking the wrong rows? A power bi troubleshooting consultant diagnoses the real cause with Performance Analyzer and refresh history, then delivers a prioritized fix and a short handoff note — senior-led, on prepaid Flex hours, so nothing recurs.
This is a remedial service for reports that are already broken or slow, not a course and not a preventive checkup. You hand us the symptom; a US-based senior engineer (20+ years on the Microsoft platform) scopes the audit, fixes the highest-impact problem first, and leaves you notes so the same issue does not come back next quarter.
Try us risk-free for 4 hours
If you are unhappy within the first four hours of a block, we refund you in full — no questions asked. Hours are deducted only for work you have reviewed and approved, so the cost of getting a second opinion on a broken report is near zero.
What we fix
The Power BI problems we get called in for
Slow reports, failed refreshes, wrong numbers, and builds that broke overnight — the remedial work a senior engineer resolves faster than a junior can diagnose.
Scheduled refresh & gateway failures
Refreshes that fail overnight, gateways that go offline, and expired credentials. We read the refresh history to the exact error, fix the cause, and confirm the schedule runs clean.
Row-level security bugs
Users seeing rows they should not — or none at all. We audit RLS roles and relationship filter direction so each person sees exactly the data their role permits.
Semantic-model performance
High-cardinality columns, bidirectional relationships, and too many visuals on one page. We reshape the semantic model so it stays fast as the data grows.
Broke after an upgrade or source change
A report that worked yesterday and fails today after a Power BI update, a renamed column, or a swapped connector. We trace the break, repoint the queries, and restore it.
Capacity & licensing confusion
Unsure whether you need Pro, Premium/PPU, or Fabric capacity? We review your usage against Microsoft's guidance and right-size the license so refresh and sharing simply work.
Symptom → cause → fix
What is likely wrong, and what we do about it
Most Power BI breakages fall into a handful of patterns. Here is how the common symptom maps to its usual cause and the first thing we do in a scoped audit.
| Symptom | Likely cause | What we do |
|---|---|---|
| Report is slow or times out | Inefficient DAX, high-cardinality columns, too many visuals | Profile with Performance Analyzer + DAX Studio, then tune the model and measures |
| Scheduled refresh keeps failing | Gateway offline, expired credentials, or a query that times out | Read the refresh history to the exact error, fix the cause, confirm a clean run |
| Wrong numbers per user | Row-level security rule or relationship filter-direction bug | Audit RLS roles and relationships, correct how filters propagate |
| Broke after an upgrade or source change | Renamed columns, a swapped connector, or a deprecated feature | Trace the break, repoint the queries, and restore the report |
| Confusing cost or capacity limits | Pro vs Premium/PPU or Fabric capacity uncertainty | Review licensing against Microsoft guidance and right-size the capacity |
Our diagnostic process
From a broken report to a lasting fix
- 1
Scoped audit
We reproduce the problem and measure it — Performance Analyzer for visual and query timings, DAX Studio for measures, and the refresh history for failures — so the diagnosis is evidence, not a guess.
- 2
Prioritized fix
You approve a scope estimate, then a senior engineer fixes the highest-impact issue first. Hours are deducted only for approved work, and most fixes land in 3–5 business days.
- 3
Short handoff note
You get a plain-language note on what was wrong, what changed, and how to keep it from recurring — so the fix survives the next data load and the next person who opens the file.
What kinds of Power BI problems do you troubleshoot?
Anything that makes a report slow, broken, or untrustworthy: timeouts and lag, failed scheduled refresh and gateway errors, row-level security bugs, semantic-model performance, reports that broke after a Power BI upgrade or a data-source change, and capacity or licensing confusion. If it is a Power BI problem you need gone, it is in scope.
Most slowness is a modeling problem wearing a visual's clothing. High-cardinality columns bloat the model, bidirectional relationships create ambiguous filter paths, and DAX that recomputes the same thing repeatedly drags every page. Fixing that well is data model and DAX tuning, and it is where a senior eye pays for itself — the same measure rewritten correctly can turn a spinning page into an instant one. Refresh and gateway failures are a different animal: the fix is reading the actual error in the refresh history rather than guessing, then repairing the credential, connector, or gateway that threw it. When you want to attempt the first pass yourself, our guide to fixing slow Power BI reports walks the same checks we run. Refresh failures often trace back to the gateway — our on-premises gateway setup guide walks the configuration.
How does your diagnostic process work?
We reproduce the issue, measure it, and fix the cause. A scoped audit uses Performance Analyzer, DAX Studio, and the refresh history to locate the real bottleneck; you approve a prioritized fix; and you get a short handoff note so it does not recur. Evidence first, then the smallest change that resolves it.
The order matters because Power BI problems are easy to mis-diagnose. A page that feels slow might be one runaway visual, not the whole model; a refresh that "randomly" fails is usually a specific expired credential or a source that changed shape. Microsoft's own report-performance troubleshooting guide (opens in new tab) lays out the same measure-before-you-change discipline we work by. If the immediate cause is a broken refresh, our resource on how to fix a failed scheduled refresh covers the common culprits step by step.
What does it cost, and how do Flex hours map to a fix?
You buy a prepaid block of senior-led hours — Starter is 20 hours at $125/hr ($2,500), Growth is 40 at $115/hr ($4,600), and Power is 80 at $100/hr ($8,000). Hours never expire, most fixes ship in 3–5 business days after you approve a scope, and hours are deducted only for approved work.
Troubleshooting is a good fit for prepaid hours precisely because the size of a problem is unknown until you look. Rather than commit to a fixed-price project before anyone has opened the file, you bank a block, we scope each fix in hours, and you approve before we spend them. A single timeout or a broken refresh often takes only a few hours; a full model rework takes more, but you see the estimate first. The four-hour refund window means the downside of getting a broken report looked at is capped. If you would rather keep a senior on call after the fire is out, that is ongoing Power BI support from the same prepaid Flex hours.
How is this different from a DIY guide or a preventive health check?
This page is the remedial service: something is broken now and you want an expert to fix it. A DIY guide teaches you to fix it yourself; a health check is preventive, run on a report that still works to catch problems early. Same platform, three different jobs — pick by whether the report is on fire.
If you enjoy the diagnosis and have the time, our written health check checklist walks the same checks and costs nothing. If your reporting is currently fine but you want assurance before a big rollout or an audit, our done-for-you Power BI health check service reviews the model, DAX, refresh, security, and performance proactively and hands back a severity-ranked list of what to fix first. This service is for the middle-of-the-night case: the dashboard the board sees tomorrow is timing out, the overnight refresh failed, or the numbers stopped matching — and you want a senior engineer on it today, not a reading assignment.
Senior US consultant, a big firm, or offshore — which should you pick?
A traditional firm often charges $175–$250/hr with a project minimum and a slow start; offshore advertises around $40/hr but carries quality and timezone risk on ambiguous, senior-judgment work. Flex is $100–125/hr, no minimum, one US senior engineer, starting this week. For a broken report that must be right the first time, that middle is usually the honest value.
We are not the cheapest hourly rate, and we will say so plainly. Offshore development can be excellent for large, well-specified backlogs where a rate gap compounds. Troubleshooting is the opposite kind of work: small, ambiguous, and dependent on reading the situation correctly the first time, because a wrong fix on a live report costs more than the hours saved. A big consultancy has the seniority but usually wants a minimum engagement and a multi-week start — too heavy for a single broken refresh. Prepaid senior hours split the difference: firm-grade expertise, no minimum, and a start this week.
Flex Support blocks
- Starter — 20 hrs @ $125/hr = $2,500
- Growth — 40 hrs @ $115/hr = $4,600
- Power — 80 hrs @ $100/hr = $8,000 (best value)
- No minimums · hours never expire
- Full refund in your first 4 hours
Report on fire?
Start small, fix the worst first
Begin with a Starter block, send the one report that is broken, and judge us on the fix. See how the Flex hours model works before you commit.
Who calls us
Teams that need a Power BI problem gone
No BI specialist on staff
The report broke, and the person who built it has left or was never a Power BI expert. You get senior diagnosis and a fix without opening a headcount.
A deadline with a broken report
A board pack, an audit, or a month-end that depends on a dashboard that is now timing out or refreshing wrong. We prioritize the fix that unblocks tomorrow.
Inherited a build that misbehaves
You took over a model you did not write and it is slow, fragile, or leaking rows. We audit it, fix the worst of it, and document what changed.
Representative perspective
“Our main dashboard started timing out the week before a board meeting and nobody in-house could find why. Having a senior engineer profile it and fix the model, with a note on what was wrong, saved the meeting.”Finance lead, mid-market services firm
Representative perspective
“The overnight refresh had been failing intermittently for weeks. They read the refresh history, traced it to a gateway credential, and it has run clean since. Scoping it in hours first meant no surprise bill.”Operations manager, logistics company
Have a Power BI report that is broken or slow?
Tell us the symptom. We scope the fix in hours, you approve, and a senior US engineer diagnoses and repairs it — typically in 3–5 business days, from a prepaid block that never expires.
FAQ
Questions about fixing a broken Power BI report
We diagnose why a Power BI report is slow, broken, or wrong, then fix the underlying cause rather than the symptom. A scoped audit uses Performance Analyzer, DAX Studio, and refresh history to find the bottleneck; you get a prioritized fix and a short handoff note so the problem does not return.
Usually the data model, not the visuals. Common causes include heavy or inefficient DAX, high-cardinality columns, bidirectional relationships, too many visuals on one page, and importing more data than a report needs. We measure each with Performance Analyzer and DAX Studio, then tune the model and measures that actually move the timing.
Yes. Refresh failures usually trace to a gateway that is offline or misconfigured, expired data-source credentials, a query that times out, or a source schema that changed. We read the refresh history to find the exact error, fix the cause, and confirm the schedule runs clean. Per Microsoft, on-premises sources need a data gateway.
You buy a prepaid block of senior-led hours — Starter 20 hours at $125, Growth 40 at $115, or Power 80 at $100 per hour. Hours never expire and are deducted only for work you approve after a scope estimate. If you are unhappy within your first four hours, we refund you in full.
Try us risk-free for 4 hours
If you're unhappy within the first 4 hours of your block, we'll refund you in full — no questions asked. Hours are deducted only for work you've reviewed and approved.
Book a free demo
Get senior Power BI help, on demand
Tell us the task. We scope it, you approve, and a senior consultant delivers — typically in 3–5 business days. Prepaid hours that never expire.
- Prepaid hours from $100/hour — and they never expire
- Senior-led delivery — 20+ years on the Microsoft platform
- Typical 3–5 business day turnaround
- Full refund if you’re unhappy in your first 4 hours
The fastest way to reach us is the form — tell us the task and we'll reply within one business day.