Your IPYour public IP address as detected by our server.
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NAT TypeThe path this measurement took to our server: directly, through your router, or only through a relay. A browser cannot read the value a console shows — this is observed live on the connection. More about NAT types →
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Select your game mode to simulate realistic network traffic. Each game uses a specific tick rate (Hz) and packet size (Bytes) for client-server communication. For example, 'Pro Esports' mode sends 128 packets per second and 200 bytes each packet
Select a server location to test your connection. Our test servers are strategically positioned near major game datacenters to provide accurate results.
PINGPing (Latency) is the time it takes for a data packet to travel from your device to a server and back. A lower ping is better, resulting in a more responsive connection.
-- ms
Current: -- ms
JITTERJitter measures the variation in your ping over time. A stable connection has low jitter. High jitter means your ping is inconsistent, which can cause stuttering or lag spikes in online games and video calls.
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Current: -- ms
PACKET LOSSPacket Loss occurs when data "packets" traveling over the network fail to reach their destination. Any amount of packet loss can cause missing audio, video glitches, or disconnections.
-- %
(0 lost / 0 sent)
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The verdict for this game appears once the first full second of packets is in.
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Roblox Ping & Packet Loss Test
Keep getting Error Code 277? Hits not registering in Arsenal? Rubberbanding in Da Hood?
Roblox simulates physics far faster than it replicates it. The engine's default network settings send physics updates at 20Hz (PhysicsSendRate and ClientPhysicsSendRate) and other data at 30Hz, which is what your client and the server actually exchange - roughly 150 bytes, about 20 times a second, to track movement, combat and physics. The 60Hz figure people quote is the old task-scheduler cap, not the replication rate. Because standard speed tests only check raw download speeds over TCP, they completely miss the UDP packet drops that cause desync, freezing, and disconnects in Roblox. Our tool simulates this exact 20Hz traffic to reveal the micro-stutters ruining your gameplay.
20 Hz
one update every 50.0 ms
What this test sends:
20 packets per second of 150 bytes, matching Roblox rather than a generic ping.
verified
Roblox's default network settings: PhysicsSendRate and ClientPhysicsSendRate 20 Hz, DataSendRate 30 Hz. The 60 Hz often quoted is the old task-scheduler cap, not replication.
How to Read the Roblox Network Graph
Run the 20Hz test above for at least 60 seconds. Here is what your results mean for Roblox:
Red Lines (Packet Loss)
Red vertical lines mean your router or ISP completely dropped the data. In Roblox, this causes you to freeze in place while everyone else runs off ledges. If you lose too many packets in a row, you will be kicked with Error Code 277 or 279.
High Jitter (Stability)
Jitter is ping instability. If your ping rapidly bounces from 40ms to 150ms, you will experience severe rubberbanding. You might walk forward, only to be snapped back to where you were two seconds ago, ruining precision jumps in obbies.
High Ping (Latency)
High baseline ping means there is a massive delay between your inputs and the server. In combat games like Blox Fruits or Arsenal, this causes your damage to register a full second after you land a hit, putting you at a massive disadvantage.
How to Fix Roblox Lag & Disconnects
If the tool above shows an unstable connection, try these specific fixes.
1. Monitor In-Game Network Stats
The Symptom: You aren't sure if the lag is your internet or your PC's hardware.
Roblox has a built-in diagnostic tool that separates FPS drops from internet lag. If your "Ping" and "Recv" values are spiking into the red, it is purely a network issue.
Fix Press Shift + F3 (or Shift + F5) while in-game. Watch the "Network" graph. If the line is jagged and red, you are experiencing packet loss or high jitter.
2. Ditch the Wi-Fi
The Symptom: Random micro-stutters, rubberbanding, and sudden freezes.
Wi-Fi naturally drops packets due to interference from walls, microwaves, and other devices. Roblox's 20Hz replication leaves little margin: each lost packet is a fiftieth of a second of missing state, and wireless connections cannot provide it consistently.
Fix Run a Cat6 Ethernet cable directly from your router to your PC or Console. This is the single most effective fix to prevent Error Code 277.
3. Fix Bufferbloat (Home Congestion)
The Symptom: Ping lines spiking into the red or yellow when family is home.
Your Roblox packets are waiting in line behind Netflix streams, TikToks, or OS updates. Your router is bottlenecking the data queue, causing massive delay spikes.
Fix Log into your router and enable QoS (Quality of Service). Prioritize your gaming device's traffic over downloads and streaming.
4. Force Local Server Regions
The Symptom: High ping in certain experiences, but fine in others.
Roblox matches you into active servers, which means it will frequently dump you into a European or Asian server if you are in the US, skyrocketing your ping to 200ms+.
Action Use browser extensions like RoPro or BTRoblox to manually select servers in your specific region (e.g., US East) before joining an experience.
Symptom to Metric
What you see in game, and which number on this page explains it.
What you see in Roblox
Look at
What it means
Your character rubberbands back a few studs
loss
A position correction after missing updates. Common on Wi-Fi.
One experience is unplayable while others are fine
server
Each experience runs its own server, often badly written. Not your line.
Tool and click actions register late
ping
Round trip to the server, on top of the 50 ms the default rate already costs.
Worse on a school or work network
route
Filtered or congested paths. Test from a different network to compare.
One platform, thousands of servers, and a default rate most creators never change
Roblox is not one game and that is the whole difficulty. The platform's default network settings put physics and character replication at roughly twenty updates a second, which is the rate this page measures at, but every experience is a separate program on a separate server written by someone else - and the quality of that program varies more than any connection ever does.
So the first question for a Roblox problem is not what your line is doing but whether the problem follows you between experiences. If one obby stutters and everything else is smooth, the answer is in that experience's code or its server, and no amount of network tuning will change it. If everything stutters, the connection is a real suspect and worth measuring properly.
The traffic itself is light, around 150 bytes per update. What makes Roblox unusual is the population: it runs on school laptops, shared family Wi-Fi, tablets and low-end phones, which is a collection of the least reliable links in home networking. Rubberbanding on this platform is far more often a wireless problem than a provider problem, and that is a distinction a browser test on the same device can make in a minute.
It is also a platform where children are usually the ones reporting the fault and adults the ones being asked to fix it. A chart with a timestamped red mark on it is a much better basis for that conversation than a description of a character jumping backwards - and if the chart is clean, it saves the household a call to an internet provider who would not have found anything either.
Frequently Asked Questions
Why do I get Error Code 277 in Roblox with good internet?
Internet speed (bandwidth) is different from internet stability. Error Code 277 means you lost connection to the server. This happens when your router or ISP drops packets for a few consecutive seconds. Speedtests won't show this, but running the packet loss test above will reveal the dropped connections.
What is a good ping for Roblox?
For casual experiences (Tycoons, Obbies), anything under 100ms is perfectly playable. However, for highly competitive games like Arsenal, Phantom Forces, or Da Hood, you need a ping under 50ms to ensure your hits register before your opponent's do.
Why am I teleporting and rubberbanding in Roblox?
Rubberbanding is caused by high Jitter and Packet Loss. Your client tells the server you moved forward, but the server never receives that packet. A split-second later, the server forces your character back to your last known position. Using an Ethernet cable stops this.
How do I check my ping in Roblox?
While in a Roblox experience, press Shift + F3 on your keyboard to open the Performance Stats overlay. Look at the "Ping" metric. For a more detailed graph, press Shift + F5 to monitor your network receive (Recv) and send rates.
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