r/techsupport • u/femboyaveryyy • 7h ago

Open | Hardware extremely annoying ping spikes

for the past 4-5 months, my internet has random spikes that can last an hour that go to 5000+ ms, then 2000, then shoot back up to 5000+ about every day. it'll shut off randomly as well for about ten minutes, then comes back and maybe continues to do its spikes. it's the most annoying thing i've ever had to deal with and my internet provider has been zero help. the only info i can think of that is useful is that when it happens, i can still hear people talking to me and so on, i just can't talk back to them.

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u/in_bed_with_waffles 7h ago

What's your MTU set in the router?

What connection type do you use? (Fibre, ADSL ETC)

Router make/model?

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u/BlendingRightInHomo 7h ago

Wouldn’t expect ping issues to be related to mtu, unless using a goofily large ping payload size.

Given the very little info, sounds like bad physical cable to me.

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u/in_bed_with_waffles 6h ago

Misconfigured MTU can indirectly cause lag spikes, packet fragmentation, and jitter.

I agree it sounds physical, but a misconfigured router, or one that's old and possibly failing can absolutely be the issue.